Facility ID No. A0005 Permit No. AP1041-0739 · S2.205.12 Ball Chip Removal System O. System 16 – Mill #2 Pre-heater and Mill #2 Dry Grinding Process S2.206 Mill #2 Air Pre-heater

Facility ID No. A0005 Permit No. AP1041-0739.04 CLASS I AIR QUALITY OPERATING PERMIT

Issued to: BARRICK GOLDSTRIKE MINES INC. (HEREAFTER CALLED THE PERMITTEE) Mailing Address: P.O. BOX 29, ELKO, NV 89803 General Facility Location: 27 MILES NORTH OF CARLIN, NV, OFF STATE ROUTE 766 General Facility Location:

SECTIONS 1 – 4, TOWNSHIP 35N, RANGE 49E, SECTIONS 12 – 15, 21 – 28, AND 33 – 36, TOWNSHIP 36N, RANGE 49E,

SECTIONS 7 – 9, 16 – 21, AND 28 – 32, TOWNSHIP 36N, RANGE 50E MDB&M HA 061U – BOULDER FLAT UPPER AREA/ EUREKA COUNTY

NORTH 4,538.500 KM, EAST 552.100 KM, UTM Zone 11, NAD 83

Emission Unit List: A. System 01 – Mill #1 Circuit – 120 ton Lime Silo S2.001 Lime Silo Loading PF1.009 Lime Silo Discharge to Screw Conveyor PF1.009.1 Screw Conveyor Transfer to Mill Conveyor B. System 02 – Boulder Valley Water Treatment Plant 500 ton Lime Silo S2.080 Lime Silo, 500 ton, Loading (includes Silo discharge to Screw Conveyor, formerly PF1.027, and Screw Conveyor

Transfer to Mill Conveyor, formerly PF1.028) C. System 04 – Boilers #2 and #3 Autoclave Circuit S2.022 Boiler #2, Foster Wheeler AG-5110B S2.023 Boiler #3, Foster Wheeler AG-5110B D. System 05 – Boilers #4 Autoclave Circuit S2.024 Boiler #4, Foster Wheeler AG-5175C E. System 06 – Autoclave Circuit – Lime Silo #5, 28 tons S2.031.1 Lime Silo Loading (silo discharges to fully enclosed screw conveyor formerly PF1.021.1) PF1.021.2 Screw Conveyor Transfer F. System 07 – Mill #2 120 ton Lime Silo S2.002 Lime Silo Loading PF1.016 Lime Silo Discharge to Screw Conveyor PF1.016.1 Screw Conveyor Transfer G. System 08 – 200 ton Magnesium Oxide Silo Boulder Valley Water Treatment Plant S2.081 Magnesium Oxide Silo Loading (silo discharges to fully enclosed screw conveyor formerly PF1.029) PF1.030 Screw conveyor transfer

Nevada Department of Conservation and Natural Resources • Division of Environmental Protection

Bureau of Air Pollution Control 901 SOUTH STEWART STREET SUITE 4001

CARSON CITY, NEVADA 89701-5249 p: 775-687-9350 • www.ndep.nv.gov/bapc

http://www.ndep.nv.gov/bapc

Nevada Department of Conservation and Natural Resources • Division of Environmental Protection Bureau of Air Pollution Control

Facility ID No. A0005 Permit No. AP1041-0739.04

CLASS I AIR QUALITY OPERATING PERMIT Issued to: Barrick Goldstrike Mines Inc. (as Permittee)

Emission Unit List (continued): H. System 09 – Roaster Crushing Circuit S2.201.2 Gyratory Crusher (including in from dump hopper, formerly S2.201.1) S2.201.3 Apron Feeder S2.201.4 Transfer Conveyor Transfer to Feed Conveyor S2.201.5 Baghouse Hopper Transfer to Feed Conveyor I. System 10 – Roaster Dump Hopper PF1.201 Primary Crusher Dump Hopper Loading J. System 11 – Roaster Secondary Crushing and Conveyance S2.202.1 Feed Conveyor Transfer to Screen S2.202.2 Screen S2.202.3 Screen Transfer to Stacking Conveyor S2.202.4 Cone Crusher S2.202.5 Cone Crusher Transfer to Stacking Conveyor S2.202.6 Baghouse Hopper Transfer to Stacking Conveyor K. System 12 – Roaster Crushed Ore Conveyance PF1.202 Coarse Ore Stacking Conveyor L. System 13 – Ore/Lime Mill 1 and 2 Feed Process S2.203.1 Mill #1 Apron Feed System Transfer S2.203.2 Mill #2 Apron Feed System Transfer S2.203.3 Emergency Mill #1 Apron Feed System Transfer S2.203.4 Emergency Mill #2 Apron Feed System Transfer S2.203.5 Lime Transfer to Mill #1 or #2 Belt Conveyor S2.203.6 Baghouse Hopper Transfer to Mill #2 Feed Conveyor M. System 14 – Emergency Reclaim Hoppers (Loading) Process PF1.203.1 Mill #1 Hopper PF1.203.2 Mill #2 Hopper




Emission Unit List (continued): N. System 15 – Mill #1 Pre-heater and Mill #1 Dry Grinding Process S2.204 Mill #1 Air Pre-heater S2.205.01 Mill #1 Feed Conveyor S2.205.02 Mill #1 Double Rotator Grinding Mill S2.205.03 Mill #1 Grinding Mill to Bucket Elevator Air Slide System S2.205.04 Mill #1 Bucket Elevator S2.205.05 Mill #1 Bucket Elevator to Dynamic Classifier Air Slide System S2.205.06 Mill #1 Dynamic Classifier S2.205.07 Mill #1 Dynamic Classifier to Grinding Mill Air Slide System S2.205.08 Mill #1 Product Recovery Baghouse to Roaster #1 Air Slide System S2.205.09 Mill #1 Pick Up Point Baghouse to Roaster #1 Air Slide System S2.205.10 Mill #1 Static Classifier S2.205.11 Roaster #1 Silo S2.205.12 Ball Chip Removal System O. System 16 – Mill #2 Pre-heater and Mill #2 Dry Grinding Process S2.206 Mill #2 Air Pre-heater S2.207.01 Mill #2 Feed Conveyor S2.207.02 Mill #2 Double Rotator Grinding Mill S2.207.03 Mill #2 Grinding Mill to Bucket Elevator Air Slide System S2.207.04 Mill #2 Bucket Elevator S2.207.05 Mill #2 Bucket Elevator to Dynamic Classifier Air Slide System S2.207.06 Mill #2 Dynamic Classifier S2.207.07 Mill #2 Dynamic Classifier to Grinding Mill Air Slide System S2.207.08 Mill #2 Product Recovery Baghouse to Roaster #2 Air Slide System S2.207.09 Mill #2 Pick Up Point Baghouse to Roaster #2 Air Slide System S2.207.10 Mill #2 Static Classifier S2.207.11 Roaster #2 Silo S2.207.12 Ball Chip Removal System




Emission Unit List (continued): P. System 17 – Roaster Circuit: Roaster #1 and Roaster #2 Feed Process S2.208.01 Roaster #1 Silo to Feed Box Air Slide System S2.208.02 Feed Box to Roaster #1 Belt Air Slide System S2.208.03 Roaster #1 Belt S2.208.04 Roaster #1 Belt to Bucket Elevator Air Slide System S2.208.05 Roaster #1 Bucket Elevator S2.208.06 Roaster #1 Elevator to Fluidized Feeder Air Slide System S2.208.07 Roaster #1 Fluidized Feeder S2.208.08 Roaster #1 Baghouse Hopper Transfer to Feed Box S2.208.09 Coal Transfer to Roaster #1-Bucket Elevator S2.208.10 Roaster #2 Silo to Feed Box Air Slide S2.208.11 Feed Box to Roaster #2 Belt Air Slide System S2.208.12 Roaster #2 Belt S2.208.13 Roaster #2 Belt to Bucket Elevator Air Slide S2.208.14 Roaster #2 Bucket Elevator S2.208.15 Roaster #2 Elevator to Fluidized Feeder Air Slide System S2.208.16 Roaster #2 Fluidized Feeder S2.208.17 Roaster #2 Baghouse Hopper Transfer to Feed Box S2.208.18 Coal Transfer to Roaster #2-Bucket Elevator S2.208.19 Inline Coal Size Reduction Equipment #1 S2.208.20 Inline Coal Size Reduction Equipment #2 S2.208.21 Sulfur Screw Conveyor to Roaster #1 Air Slide S2.208.22 Sulfur Screw Conveyor to Roaster #2 Air Slide Q. System 18 – Roaster Circuit: Ore Roasting Process S2.209.1 Roaster #1 (TU4.003 in MOPTC 1041-2221) S2.209.2 Roaster #2 (TU4.004 in MOPTC 1041-2221) R. System 19 – Roaster Circuit: Quenching Process S2.210 Roaster #1 Quench Tank (TU4.005 in MOPTC 1041-2221) S2.211 Roaster #2 Quench Tank (TU4.006 in MOPTC 1041-2221) S. System 20 – Ancillary Roaster Processes: Coal Silo S2.212 Coal Silo, 200 ton, Loading (and coal silo discharge to fully enclosed screw conveyor formerly PF1.204) T. System 21 – Ancillary Roaster Processes: Propane Vaporizers S2.213 Vaporizer #1 S2.214 Vaporizer #2 S2.215 Vaporizer #3




Emission Unit List (continued): U. System 22 – Ancillary Roaster Process: Slaked Lime Silo S2.216 Lime Silo, Slaking, 1,000 ton, Loading (and Lime Silo, Slaking, discharge to fully enclosed screw conveyor formerly

PF1.205) V. System 23 – Ancillary Roaster Processes: Roaster Mill Lime Silo

S2.217 Roaster Mill Lime Silo, 500 ton, Loading (Roaster Mill Silo discharge to Mill #1 Conveyor via full enclosure, formerly PF1.206, and Roaster Mill Silo Discharge to Mill #2 Conveyor via full enclosure, formerly PF1.207)

W. System 24 – Ancillary Roaster Processes: Soda Ash Silo S2.218 Soda Ash Silo, 200 ton, Loading (Soda Ash Silo discharge to fully enclosed screw conveyor, formerly PF1.208) X. System 26 – Ancillary Roaster Processes: Liquid Oxygen Vaporizer S2.220 Liquid Oxygen Vaporizer Y. System 29 – Ancillary Roaster Processes: Quench Water Cooling Tower S2.223 Quench Water Cooling Tower Z. System 49 – Meikle Backfill/Cement Feed Plant Feed Hopper PF1.119 Transfer to Aggregate Feed Conveyor via Hopper with Grizzly (Feed Conveyor discharge through full enclosure,

formerly System 50 PF1.121) AA. System 51 – Meikle Backfill/Cement Feed Plant Silo #1 S2.101 Cement/Ash Silo #1 Loading (and Cement/Ash Silo #1 discharge and screw conveyor transfer, both fully enclosed,

formerly PF1.122 and PF1.122.1 respectively) AB. System 52 – Meikle Backfill/Cement Feed Plant Silo #2 S2.102 Cement/Ash Silo #2 Loading (and Cement/Ash Silo #2 discharge and screw conveyor transfer both fully enclosed,

formerly PF1.123 and PF1.123.1 respectively) AC. System 61A – Carbon Reactivation Kiln #2: Kiln Throughput and PB Tanks S2.004.1 Carbon Kiln #2 Drum (TU4.008 in MOPTC 1041-2221) S2.004.3 Pregnant Solution Tank A-Side (TU4.009 in MOPTC 1041-2221) S2.004.4 Pregnant Solution Tank B - Side (TU4.010 in MOPTC 1041-2221) S2.004.5 Barren Solution Tank A - Side (TU4.011 in MOPTC 1041-2221) S2.004.6 Barren Solution Tank B - Side (TU4.012 in MOPTC 1041-2221) AD. System 61B – Carbon Reactivation Kiln #2: Carbon Kiln #2 Burner S2.004.2 Carbon Kiln #2 Burner




Emission Unit List (continued): AE. System 62 – Meikle Production Shaft PF1.101 Skips Discharge - Transfer to Upper Chute PF1.102 Upper Chute Discharge Transfer to One of Two Transfer Cars PF1.103 Transfer Cars Discharge - Transfer to One of Two Lower Chutes PF1.104 Bin Loading - Lower Chutes Discharge to One of Two Bins PF1.105 Bins Discharge - Transfer to Haul Truck AF. System 63A – Autoclave Silo #1, 250 tons S2.028 Autoclave Silo #1, Loading PF1.018 Autoclave Silo #1, Discharge AG. System 63B – Autoclave Silo #2 and #3, 500 ton each S2.029 Autoclave Silo #2, Loading PF1.019 Autoclave Silo #2, Discharge S2.030 Autoclave Silo #3, Loading PF1.020 Autoclave Silo #3, Discharge AH. System 63C – Autoclave Silo #4, 1,000 ton S2.031 Autoclave Silo #4, Loading PF1.021 Autoclave Silo #4, Discharge AI. System 64 – Mill #1 Primary and Tertiary Crushing PF1.001 Ore Hopper Loading PF1.003 Jaw Crusher and Associated Transfers In and Out (in from Apron Feeder, out to Conveyor) PF1.004 Ore Hopper Discharge PF1.005 Cone Crusher and Associated Transfers In and Out (in from Recycle Conveyor Transfer, out to Cone Outlet Conveyor) PF1.005.01 Cone Outlet Conveyor Discharge PF1.006 Conveyor #001 Discharge PF1.007 Radial Stacker #002 Discharge PF1.008 Conveyor #003 (Mill Inlet) Discharge PF1.008.1 4 Apron Feeders Load and Discharge




Emission Unit List (continued): AJ. System 65 – Mill #2 Primary and Tertiary Crushing PF1.010 Stacker Conveyor #304 Discharge PF1.011 Transfer into Gyratory Crusher (via dump pocket) PF1.012 Gyratory Crusher PF1.013 Conveyor #101 (gyratory outlet) Discharge PF1.014 Cone Crusher and Associated Transfers In and Out (in from Recycle Conveyor out to Conveyor PF1.014.1) PF1.014.1 Cone Outlet Conveyor Discharge PF1.015 Conveyor #301 Discharge (mill inlet, includes fully saturated SAG Mill material from recycle conveyor) PF1.015.1 4 Apron Feeders, Load and Discharge AK. System 66A – Autoclave Circuit - Autoclave #1 S2.015 Autoclave #1 (TU4.013 in MOPTC 1041-2221) AL. System 66B – Autoclave Circuit - Autoclave #2 and Autoclave #3 S2.016 Autoclave #2 (TU4.014 in MOPTC 1041-2221) S2.017 Autoclave #3 (TU4.015 in MOPTC 1041-2221) AM. System 66C – Autoclave Circuit - Autoclave #4, Autoclave #5, and Autoclave #6 S2.018 Autoclave #4 (TU4.016 in MOPTC 1041-2221) S2.019 Autoclave #5 (TU4.017 in MOPTC 1041-2221) S2.020 Autoclave #6 (TU4.018 in MOPTC 1041-2221) AN. System 67 – Mercury Retorts S2.009 Mercury Retort #1 (TU4.019 in MOPTC 1041-2221) S2.010 Mercury Retort #2 (TU4.020 in MOPTC 1041-2221) S2.011 Mercury Retort #3 (TU4.021 in MOPTC 1041-2221) S2.341 Mercury Retort #4 (TU4.025 in MOPTC 1041-2221) AO. System 68 –- Furnaces S2.013 West Melting Furnace (TU4.022 in MOPTC 1041-2221) S2.014 East Melting Furnace (TU4.023 in MOPTC 1041-2221) S2.344 Electrowinning Cells (TU4.024 in MOPTC 1041-2221) AP. System 69 – Analytical Laboratory Sample Preparation S2.033.1 Crushers (5) S2.033.2 Pulverizers (4) S2.033.3 Sample Reject Conveyor S2.033.4 Rotary Mill




Emission Unit List (continued): AQ. System 70 – Analytical Laboratory - Fire Assay Facility S2.051.1 Assay Furnaces (7) S2.051.2 Tumbler #1 S2.051.3 Mixed Flux Dispenser (2) S2.051.4 Drag Conveyor S2.051.5 Furnace Tables (5) S2.051.6 Waste Crusher S2.051.7 Tumbler #2 S2.051.8 Bench Top Roasting Furnace AR. System 71 – Metallurgical Laboratory Sample Preparation S2.067.1 Crushers (2) S2.067.2 Grind Mills (4) S2.067.3 Pulverizers (2) S2.067.4 Tumblers (V-Blenders)(2) S2.067.5 Ventilation Hoods (2) AS. System 72 – Metallurgical Laboratory - Fire Assay Facility S2.074.1 Bench Top Roasters (2) S2.074.2 Two Crushers (2) S2.074.3 Pulverizers (2) AT. System 74 – Propane Vaporizers S2.025 Propane Vaporizer #1 S2.026 Propane Vaporizer #2 S2.027 Propane Vaporizer #3 AU. System 75 – Fuel Storage Tanks S2.080 Fuel Oil Storage Tank, 250,000 gallons S2.081 Fuel Oil Storage Tank, 150,000 gallons S2.082 Gasoline Storage Tank, 12,000 gallons AV. System 76 – Meikle Mine Air Heaters S2.104 Air Heater #1 S2.105 Air Heater #2 S2.106 Air Heater #3 S2.107 Air Heater #4




Emission Unit List (continued): AW. System 77 – Rodeo Shaft PF1.125 Skip Discharge PF1.126 Chute Discharge AX. System 78 – Cooling Tower S2.224 Oxygen Plant Cooling Tower AY. System 81 – Rodeo Backfill Mixing Plant Cement/Fly Ash Silos #1 and #2 - REMOVED AZ. System 86 – Rodeo Shotcrete Loadout Station PF1.350 Delivery Truck Discharge PF1.351 Screw Conveyor Discharge BA. System 87 – Rodeo Mine Air Heaters S2.307 Air Heater #1 S2.308 Air Heater #2 S2.309 Air Heater #3 S2.310 Air Heater #4 BB. System 88 – Backup Crushing System PF1.352 Crusher Feeder (Load) PF1.353 Crusher Feeder (Discharge to Crusher) PF1.354 Primary Crusher PF1.355 Crusher Outlet Conveyor Transfer PF1.356 Conveyor Transfer PF1.357 Hopper (Load) PF1.358 Hopper (Discharge) PF1.359 Conveyor Transfer BC. System 90 – Emergency Power Generators (Located in the Autoclave Area) S2.311.1 Diesel Fueled Engine Electric - Generator #1 (MP-750, Autoclave) (1,592 hp, Caterpillar, Model #3512, Manufactured

Pre-2006) S2.311.2 Diesel Fueled Engine Electric - Generator #2 (MP-598, Autoclave) (1,586 hp, Caterpillar, Model #3512, Manufactured

Pre-2006) S2.311.3 Diesel Fueled Engine Electric - Generator #3 (MP-606, Autoclave) (1,592 hp, Caterpillar, Model #3512, manufactured

pre-2006) S2.311.4 Diesel Fueled Engine Electric - Generator #4 (MP-607, Autoclave) (1,586 hp, Caterpillar, Model #3512, Manufactured

Pre-2006)




Emission Unit List (continued): BD. System 91 – Emergency Power Generators S2.312.1 Diesel Fueled Engine Electric Generator #5 (MP-608, Mill) (2,847 hp, Caterpillar, Model #3516, Manufactured Pre-

2006) (Located in the Mill Area) S2.312.2 Diesel Fueled Engine Electric Generator #10 (KFE-002, Meikle) (2,847 hp, Caterpillar, Model #3516, Manufactured

pre-2006) (Located in the Meikle Underground Area) BE. System 92 – Emergency Power Generators S2.313.1 Diesel Fueled Engine Electric Generator #6 (MP-610) (1,490 hp, Cummins, Model KTA50, Manufactured pre-2006)

(Located in the Roaster Area) S2.313.2 Diesel Fueled Engine Electric Generator #7 (MP-705) (1,490 hp, Cummins, Model KTA50, Manufactured pre-2006)

(Located in the Roaster Area) S2.313.3 Diesel Fueled Engine Electric Generator #8 (MP-706) (1,490 hp, Cummins, Model KTA50, Manufactured pre-2006)

(Located in the Roaster Area) S2.313.4 Diesel Fueled Engine Electric Generator #9 (MP-704, Rodeo) (MP-704, Rodeo) (1,490 hp, Cummins, Model KTA50)

(Located in the Rodeo Underground Area) BF. System 95 – Ames Backfill Crushing and Screening Plant PF1.400 Front End Loader to Jaw Crusher Pan Feeder 1 (Load) PF1.401 Front End Loader to Jaw Crusher Pan Feeder 2 (Load) PF1.404 Jaw Crusher 1 and Associated Transfers In and Out (in from Pan Feeder 1 and out to Conveyor 1) PF1.405 Jaw Crusher 2 and Associated Transfers In and Out (in from Pan Feeder 2 and out to Conveyor 2) PF1.406 Cone Crusher 1 and Associated Transfers In and Out (in from Conveyor 5 and out to Conveyor 7) PF1.408 Screen 1 and Associated Transfers In and Out (in from Conveyor 4 and out to Conveyors 5, 6, and 11) PF1.409 Screen 2 and Associated Transfers In and Out (in from Conveyor 15) PF1.411 Truck Load-Out Surge Bin (Discharge) PF1.415 Conveyor 2 Discharge PF1.416 Conveyor 1 Transfer to Conveyor 3 PF1.417 Conveyor 3 Transfer to Conveyor 4 PF1.420 Conveyor 7 Transfer to Conveyor 8 PF1.421 Conveyor 6 Transfer to Conveyor 8 PF1.422 Conveyor 8 Transfer to Conveyor 9 PF1.423 Conveyor 9 Transfer to Conveyor 10 PF1.424 Conveyor 15 Discharge PF1.425 Conveyor 11 Transfer to Conveyor 12 PF1.433 Conveyor 12 Transfer to Stockpile PF1.434 Conveyor 10 Transfer to Surge Bin




Emission Unit List (continued): BG. System 97 – Intermediate Crushing System (Mill #1 and #2) PF1.457 Feed Hopper and Feeder Load PF1.459 Multi-Deck Screen and Associated Transfers In and Out (in from Conveyor Transfer and out to Conveyor to Cone

Crusher and Conveyor) PF1.460 Multi Deck Screen Under Conveyor Transfer PF1.461 Conveyor Transfer PF1.463 Cone Crusher and Associated Transfers In and Out (in from Conveyor, out to Conveyor) PF1.464 Stacker Conveyor BH. System 99A – Portable Batch Plant A S2.085 Cement Silo/Guppy #1 Loading PF1.465 Cement Silo/Guppy #1 Transfer to Silo/Guppy #1 Conveyor PF1.466 Silo/Guppy #1 Conveyor Discharge BI. System 99B – Portable Batch Plant B S2.086 Cement Silo/Guppy #2 Loading PF1.467 Cement Silo/Guppy #2 Transfer to Silo/Guppy #2 Conveyor PF1.468 Silo/Guppy #2 Conveyor Discharge BJ. System 99C – Portable Batch Plant C PF1.469 Bin Loading PF1.470 Bin Transfer to Bin Conveyor BK. System 99F – Portable Batch Plant F PF1.476 Central Mixer Loading BL. System 100 – Meikle Backfill/Cement Feed Plant Silo #3 PF1.325 Delivery Truck Discharge S2.087 Silo #3 Loading (includes Screw Conveyor Discharge, formerly System 60 PF1.326, fully enclosed. Also includes

transfer to Screw Conveyor, PF1.477, and Screw Conveyor Discharge, PF1.478, both fully enclosed) BM. System 101 – Meikle Shotcrete Loadout Station Extension PF1.479 Conveyor #2 Discharge PF1.480 Conveyor #3 Discharge BN. System 102 – Rodeo Shotcrete Loadout Station Silo #1 S2.088 Silo #1 Loading PF1.481 Silo #1 Transfer to Weigh Hopper PF1.482 Weigh Hopper Discharge to Underground




Emission Unit List (continued): BO. System 103A – Ore Fines Feed System PF1.483 Hopper, Loading (Hopper discharge is fully enclosed, formerly PF1.484) PF1.485 Screw Conveyor Transfer to Bucket Elevator BP. System 103B – Ore Fines Feed System (Ore Fines Drying and Storage System) S2.316.1 Fluid Bed Dryer S2.316.2 Surge Bin S2.316.3 Dense Phase Pneumatic Conveying System S2.316.4 Ore Fines Silo (Loading) BQ. System 104 – Fuel Oil Storage Tank S2.317 Fuel Oil Storage Tank, 250,000 gallons BR. System 106 – Autoclave Mixing Tank S2.319 Autoclave Mixing Tank Loading BS. System 107 – Additional Equipment for Intermediate Crushing System (Mill #1 and Mill #2) PF1.488 Cone Crusher and Associated Transfers In and Out (in from Conveyor, out to Conveyor) PF1.490 Multi-Deck Screen and Associated Transfers In and Out (in from Cone Crusher Conveyors, out to Conveyor) BT. System 108 – Roaster Sulfur Prill Addition System PF1.491 Truck Unloading to Grizzly BU. System 110 – Roaster Sulfur Prill Addition System PF1.493 Grizzly Discharge to Truck Unloading Conveyor BV. System 111 – Roaster Sulfur Prill Addition System PF1.494 Truck Unloading Conveyor Transfer to Main Conveyor BW. System 112 – Roaster Sulfur Prill Addition System PF1.498 Main Conveyor Transfer to Sulfur Prill Silo (Loading) PF1.495.1 Silo Discharge to South Roaster Conveyor PF1.495.2 Silo Discharge to North Roaster Conveyor BX. System 113 – Alternate Roaster Prill Addition System PF1.496 Roaster #1 Sulfur/Carbon Fines Feed Hopper PF1.497 Roaster #2 Sulfur/Carbon Fines Feed Hopper




Emission Unit List (continued): BY. System 116 – Roaster Sulfur Prill Addition System PF1.499 Roaster Conveyor Transfer to Hopper (South) PF1.500 Roaster Conveyor Transfer to Hopper (North) BZ. System 117 – Regen 1 Feed System S2.325 Regen 1 Silo/Guppy Loading PF1.501 Regen 1 Silo/Guppy Discharge CA. System 118 – Regen 2 Feed System S2.326 Regen 2 Silo/Guppy Loading PF1.502 Regen 2 Silo/Guppy Discharge CB. System 119 – Copper Sulfate Feed System PF1.503 Bag Splitter and Transfer to Mixing Tank CC. System 120 – Flocculent Feed System PF1.504 Bag Splitter and Transfer to Conveyor (Tail Thickener) PF1.505 Bag Splitter and Transfer to Conveyor (Clarifier) CD. System 121 – Thiosulfate Feed System PF1.506 Bag Splitter and Transfer to Mixing Tank CE. System 122 – Water Softener Feed System PF1.507 Water Softener Transfer to Mixing Tank 1 PF1.508 Water Softener Transfer to Mixing Tank 2 CF. System 127 – Thiosulfate Recycle System S2.332.1 Thiosulfate Recycle Tank 1 (59,000 gallons) S2.332.2 Thiosulfate Recycle Tank 2 (59,000 gallons) S2.332.3 Thiosulfate Recycle Tank 3 (59,000 gallons) S2.332.4 Thiosulfate Recycle Solution Tank (12,000 gallons) S2.332.5 Regen 1 Storage Tank (13,000 gallons) S2.332.6 Regen 2 Mixing Tank (7,000 gallons) S2.332.7 Regen 2 Storage Tank (13,000 gallons) S2.332.8 Regen 1 Mixing Tank (12,000 gallons)




Emission Unit List (continued): CG. System 128 – Elution Circuit Process Tanks S2.333.1 Train A Resin Regeneration Tank (18,900 gallons) (TU4.026, MOPTC 1041-2221) S2.333.2 Train B Resin Regeneration Tank (18,900 gallons) (TU4.027, MOPTC 1041-2221) S2.333.3 Eluant Synthesis Feed Tank (28,000 gallons) S2.333.4 Eluant Synthesis Tank (19,000 gallons) S2.333.5 Regen 1 Day Tank (19,000 gallons) S2.333.6 Regen 2 Day Tank (13,000 gallons) S2.333.7 Eluant Synthesis Discharge Tank (41,000 gallons) CH. System 129 – Liquid Sulfur Loading and Storage S2.334 Truck Unloading Sulfur Tank (horizontal 11,000 gallon tank, diameter = 11' length = 14.6') S2.335 Sulfur Storage Tank (140,000 gallon tank, diameter = 30' length = 26.5') CI. System 130 – Polysulfide Reactors S2.336 Polysulfide Reactor 1 (9,800 gallon vertical fixed roof tank with a diameter of 11' and a height of 16') S2.337 Polysulfide Reactor 2 (9,800 gallon vertical fixed roof tank with a diameter of 11' and a height of 16') S2.338 Polysulfide Reactor 3 (9,800 gallon vertical fixed roof tank with a diameter of 11' and a height of 16') S2.339 Polysulfide Day Tank 1 (25,000 gallon vertical fixed roof tank with a diameter of 15' and a height of 23') S2.340 Polysulfide Day Tank 2 (25,000 gallon vertical fixed roof tank with a diameter of 15' and a height of 23') CJ. System 131 – RIL Electrowinning Cells and RIL Pregnant and Barren Tanks A and B S2.342.1 RIL Electrowinning Cells (TU4.030, AP1041-2221) S2.342.2 RIL Pregnant and Barren Solution Tank A (TU4.031, AP1041-2221) S2.342.3 RIL Pregnant and Barren Solution Tank B (TU4.032, AP1041-2221) CK. System 133A – Paste Backfill Plant S2.350 Cement Silo Loading (discharge via full enclosure) CL. System 133B – Paste Backfill Plant S2.351 Fly Ash Silo Loading (discharge via full enclosure) CM. System 134 – Paste Backfill Plant Material Transfers S2.352.1 Cement Silo Conveyor Discharge S2.352.2 Fly Ash Silo Conveyor Discharge S2.352.3 Screw Conveyor Discharge CN. System 135 – Paste Backfill Plant Emergency Diesel Generator S2.353 Emergency Diesel Generator (2,206 hp, CAT, Model #3512C, manufactured 2012)




Emission Unit List (continued): CO. System 136 – Rodeo Shotcrete Silo #2 S2.354 Silo #2 Loading (pneumatic or bucket elevator) (description includes discharge to conveyor, previously permitted as

PF1.510, and conveyor discharge, previously permitted as PF1.511, both of which are fully enclosed. Also included are Delivery Truck Discharge and Screw Conveyor Discharge both fully enclosed and formerly units PF1.512 and PF1.513 of System 137 )

CP. System 138 – Fuel Storage Tanks - REMOVED CQ. System 139 – Laboratory Pilot Roaster Plant S2.357 Pilot Roaster CR. System 140 – Bazza Backfill Plant S2.359 Primary (120 tons) and Auxiliary (190 tons) Cement Silo Loading S2.360 Central Mixer Loading (Silo Discharge) CS. System 141 – TKI Boiler S2.361 12 MMBtu TKI Boiler CT. System 142 – TS Regen Heater S2.362 8.5 MMBtu Fired TS Regen Heater CU. System 143 – Resin Regen Heater 1 S2.363 6.0 MMBtu Fired Resin Regen Heater 1 CV. System 144 – RIL Emergency Generator (Located in the TCM Area) S2.364 2,710 kW (3,634 hp) RIL Emergency Generator CW. System 145A – Ames Cement and Shotcrete Batch Plant PF1.514 Truck Discharge to Screw Conveyor #1 (followed by Screw conveyor #1 to Screw conveyor #2, previously permitted

as System 145B PF1.515, and Screw Conveyor #2 to bucket elevator, previously permitted as System 145C PF1.516, both transfer points are fully enclosed.)

PF1.520 Cement Hopper Discharge to Mix Truck PF1.522 Shotcrete Hopper Discharge to Mix Truck CX. System 145B – Ames Cement and Shotcrete Batch Plant S2.365 Cement Silo #1 Loading (followed by Cement Silo #1 Discharge to Cement Hopper, transfer point is fully enclosed) S2.366 Shotcrete Silo Loading (Shotcrete Silo Discharge to Shotcrete Hopper, fully enclosed) S2.367 Cement Silo #2 Loading (Cement Silo #2 Discharge to Screw Conveyor #3, fully enclosed transfer point and Screw

Conveyor #3 to Bucket Elevator, also fully enclosed) S2.368 Silo #4 Loading (Silo #4 Discharge to Screw Conveyor #4, fully enclosed, and Screw Conveyor #4 to Screw Conveyor

#3. Followed by Screw Conveyor #3 to Bucket Elevator also fully enclosed)




Emission Unit List (continued): CY. System 146 – Regen Bag Splitter PF1.525 Bag Splitter and Transfer to Mixing Tank or Bin CZ. System 147A – Vent Shaft Backup Generator (Located in the Meikle Underground Area) S2.369 Vent Shaft Backup Generator KFE-001 (1,125 hp, Caterpillar, model D399, manufactured pre-2006) DA. System 147B – North Area Tails Seepage Generator (Located in the Roaster Area) S2.371 North Area Tails Seepage Generator MP-609 (810 hp, Caterpillar, model 3412, manufactured pre-2006) DB. System 147C – Dispatch Backup Generator (Located in the Open Pit Area) S2.373 Dispatch Backup Generator MP-751 (102 hp, Cummins, model 4BT3.9 G2, manufactured pre-2006) DC. System 147D – Meikle Fire Pump (Located in the Meikle Underground Area) S2.374 Meikle Fire Pump KFU-100-FFU (245 hp, Detroit, model DDFP-04AT 7004, manufactured pre-2006) DD. System 147E – Roaster Fire Pump (Located in the Roaster Area) S2.375 Roaster Fire Pump RC-6514 (265 hp, Detroit, model DDFP-L6FA 8393F, manufactured pre-2006) DE. System 147F – Mill Fire Pump (Located in the Mill Area) S2.376 Mill Fire Pump MT-302 (149 hp, Cummins, model V-378, manufactured pre-2006) DF. System 147G – Cooling Plant Fire Pump (Located in the Mill Area) S2.377 Cooling Plant Fire Pump BV-1105 (235 hp, Caterpillar, model 3208, manufactured pre-2006) DG. System 147H – Autoclave Hg Control Generator (Located in the Autoclave Area) S2.378 Autoclave Hg Control Generator (838 hp, Caterpillar, model c-18, manufactured 2011) DH. System 147I – Main Guard Shack Emergency Generator (Located in the Guard Shack-Open Pit Area) S2.380 Main Guard Shack Emergency Generator (120 hp, Ford, model ESG642, manufactured August 2007) DI. System 147J – IT Server Backup Admin (Located in the Admin Area) S2.381 IT Server Backup (admin) (134 hp, GM/Kohler, model 100RZG, manufactured July 2008) DJ. System 147K – UG Rodeo Emergency Generator (Located in the Rodeo Underground Area) S2.391 UG Rodeo Emergency Generator (268 hp, Caterpillar, model 3306, manufactured pre-2006) DK. System 147L – NG Distribution Area Generator (Located in the Open Pit Area) S2.392 NG Distribution Area Generator (120 hp, Ford, model ESG64216005E, manufactured June 2001)




Emission Unit List (continued): DL. System 149 – Meikle Refrigeration Plant - Condenser Cooling Tower S2.385 Meikle Refrigeration Plant - Condenser Cooling Tower DM. System 151 – Surface Filtration Plant Lime Silo S2.390 Lime Silo Loading (pneumatic) PF1.529 Lime Silo Discharge to Lime Slaker DN. System 152 – NBTDF Pump Station Emergency Generator S2.393 NBTDF Pump Station Emergency Generator (2,206 hp, Caterpillar, model 3512C, manufactured 2013) DO. System 153 – TSA System Regen Heater S2.394 TSA System Regen Heater

****End of Emission Unit List****




18

Section I. General Conditions A. Nevada Administrative Code (NAC) 445B.315(3)(c) Part 70 Program

Severability Each of the conditions and requirements of this operating permit is severable and, if any are held invalid, the remaining conditions and requirements continue in effect.

B. Nevada Revised Statute (NRS) 445B.470(1) (State Only Requirement)

Prohibited Acts The Permittee shall not knowingly: 1. Violate any applicable provision, the terms or conditions of any permit or any provision for the filing of information; 2. Fail to pay any fee; 3. Falsify any material statement, representation or certification in any notice or report; or 4. Render inaccurate any monitoring device or method, required pursuant to the provisions of NRS 445B.100 to 445B.450,

inclusive, or NRS 445B.470 to 445B.640, inclusive, or any regulation adopted pursuant to those provisions. C. NAC 445B.22013 (State Only Requirement)

Prohibited Discharge The Permittee shall not cause or permit the discharge into the atmosphere from any stationary source of any hazardous air pollutant or toxic regulated air pollutant that threatens the health and safety of the general public, as determined by the Director.

D. NAC 445B.225 (Federally Enforceable SIP Requirement)

Prohibited Conduct: Concealment of Emissions No person may install, construct or use any device which conceals any emission without reducing the total release of regulated air pollutants to the atmosphere.

E. NAC 445B.315(3)(d) Part 70 Program

Compliance/Noncompliance The Permittee shall comply with all conditions of this operating permit. Any noncompliance constitutes a violation and is grounds for: 1. An action for noncompliance; 2. Modifying, revoking, reopening and revising, or terminating the operating permit; or 3. Denial of an application for a renewal of the operating permit.

F. NAC 445B.273.1 (State Only Requirement)

Schedules for Compliance The Permittee shall comply with NAC 445B.001 through 445B.3689, inclusive. Existing stationary sources are in compliance with those sections and may continue to operate under the provisions of their approved compliance schedules, which may be amended from time to time.

G. NAC 445B.326(1) Part 70 Program

Assertion of Emergency as Affirmative Defense to Action for Noncompliance The Permittee may assert an affirmative defense to an action brought for noncompliance with a technology-based emission limitation contained in the operating permit if the holder of the operating permit demonstrates through signed, contemporaneous operating logs or other relevant evidence that: 1. An emergency occurred as defined in NAC 445B.056, and the holder of the operating permit can identify the cause of the

emergency; 2. The facility was being properly operated at the time of the emergency; 3. During the emergency, the holder of the operating permit took all reasonable steps to minimize excess emissions; and 4. The holder of the operating permit submitted notice of the emergency to the Director within 2 working days after the

emergency. The notice must contain a description of the emergency, any steps taken to mitigate emissions, and any corrective actions taken to restore the normal operation of the facility.




19

Section I. General Conditions (continued)

H. NAC 445B.315(3)(e) Part 70 Program The need to halt or reduce activity to maintain compliance with the conditions of this operating permit is not a defense to noncompliance with any conditions of this operating permit.

I. NAC 445B.315(3)(f) Part 70 Program The Director may revise, revoke and reissue, reopen and revise, or terminate the operating permit for cause.

J. NAC 445B.325 Part 70 Program Termination, reopening and revision, modification, and revocation and reissuance 1. A Class I operating permit must be reopened and revised to incorporate any additional applicable requirement adopted

pursuant to the Act if, on the effective date of the applicable requirement, the operating permit has a remaining term of 3 or more years. The reopening must be completed no later than 18 months after the effective date of the applicable requirement.

2. An operating permit may be terminated, reopened and revised, modified, or revoked and reissued if: a. The Director or the Administrator determines that the operating permit contains a material mistake or is based on

inaccurate statements; b. The Director or the Administrator determines that the operating permit, as written, does not ensure compliance with

all applicable requirements; or c. The Director determines that there has been a violation of any of the provisions of NAC 445B.001 to 445B.3497,

inclusive, any applicable requirement, or any condition contained in the operating permit.

K. NAC 445B.3265 (State Only Requirement) Revocation and reissuance 1. NAC 445B. 3265(1) The Permittee’s operating permit may be revoked if the control equipment is not operating. 2. NAC 445B.3265(2) The Permittee’s operating permit may be revoked by the Director upon determination that there has

been a violation of NAC 445B.001 to 445B.3497, inclusive, or the provisions of 40 CFR Part 52.21, or 40 CFR Part 60 or 61, Prevention of Significant Deterioration, New Source Performance Standards, and National Emission Standards for Hazardous Air Pollutants adopted by reference in NAC 445B.221.

3. NAC 445B.3265(3) The revocation is effective 10 days after the service of a written notice, unless a hearing is requested.

L. SIP 445.715 (Federally Enforceable SIP Requirement) Operating permits: Revocation 1. The Permittee’s operating permit may be revoked if the control equipment is not operating. 2. The Permittee’s operating permit can be revoked by the Director upon determination that there has been a violation of SIP

445.430 to 445.846, inclusive, or 40 CFR Parts 60 or 61, New Source Performance Standards and National Emissions Standards for Hazardous Air Pollutants.

3. The revocation is effective 10 days after the service of a written notice, and the revoked operating permit shall be surrendered immediately unless a hearing is requested.

M. NAC 445B.315(3)(g) Part 70 Program

This operating permit does not convey any property rights or any exclusive privilege.

N. NAC 445B.315(3)(h) Part 70 Program The Permittee shall provide the Director, within a reasonable time, with any information that the Director requests in writing to determine whether cause exists for modifying, revoking and reissuing, reopening and revising or terminating this operating permit or to determine compliance with the conditions of this operating permit.

O. NAC 445B.315(3)(i) Part 70 Program

The Permittee shall pay fees to the Bureau of Air Pollution Control in accordance with the provisions set forth in NAC 445B.327 and 445B.331.




20

Section I. General Conditions (continued) P. NAC 445B.315(3)(j) Part 70 Program

Right to Entry The Permittee shall allow the Bureau of Air Pollution Control staff, upon the presentation of credentials, to: 1. Enter upon the premises of the Permittee where:

a. The stationary source is located; b. Activity related to emissions is conducted; or c. Records are kept pursuant to the conditions of this operating permit.

2. Have access to and copy, during normal business hours, any records that are kept pursuant to the conditions of this operating permit;

3. Inspect, at reasonable times, any facilities, practices, operations, or equipment, including any equipment for monitoring or controlling air pollution, that are regulated or required pursuant to this operating permit; and

4. Sample or monitor, at reasonable times, substances or parameters to determine compliance with the conditions of this operating permit or applicable requirements.

Q. NAC 445B.315(3)(k) Part 70 Program

A responsible official of the Permittee shall certify that, based on information and belief formed after reasonable inquiry, the statements made in any document required to be submitted by any condition of this operating permit are true, accurate and complete.

R. 40 CFR 52.21(r)(4) (Federally Enforceable PSD Program) At such time that the Permittee becomes a major stationary source or major modification solely by virtue of a relaxation in any enforceable limitation which was established after August 7, 1980, on the capacity of the source or modification otherwise to emit a pollutant, such as a restriction on hours of operation, then the requirements of 40 CFR Part 52.21 paragraphs (j) through (s) of this section shall apply to the source or modification as though construction had not yet commenced on the source or modification.

S. NAC 445B.252 Testing and Sampling (State Only Requirement) 1. To determine compliance with NAC 445B.001 to 445B.3689, inclusive, before the approval or the continuance of an

operating permit or similar class of permits, the Director may either conduct or order the owner of any stationary source to conduct or have conducted such testing and sampling as the Director determines necessary. Testing and sampling or either of them must be conducted and the results submitted to the Director within 60 days after achieving the maximum rate of production at which the affected facility will be operated, but not later than 180 days after initial start-up of the facility and at such other times as may be required by the Director.

2. Tests of performance must be conducted and data reduced in accordance with the methods and procedures of the test contained in each applicable subsection of this section unless the Director: a. Specifies or approves, in specific cases, the use of a reference method with minor changes in methodology; b. Approves the use of an equivalent method; c. Approves the use of an alternative method, the results of which the Director has determined to be adequate for

indicating whether a specific stationary source is in compliance; or d. Waives the requirement for tests of performance because the owner or operator of a stationary source has

demonstrated by other means to the Director’s satisfaction that the affected facility is in compliance with the standard.

3. Tests of performance must be conducted under such conditions as the Director specifies to the operator of the plant based on representative performance of the affected facility. The owner or operator shall make available to the Director such records as may be necessary to determine the conditions of the test of performance. Operations during periods of start-up, shutdown and malfunction must not constitute representative conditions of a test of performance unless otherwise specified in the applicable standard.

4. The owner or operator of an affected facility shall give notice to the Director 30 days before the test of performance to allow the Director to have an observer present. A written testing procedure for the test of performance must be submitted to the Director at least 30 days before the test of performance to allow the Director to review the proposed testing procedures.




21

Section I. General Conditions (continued) S. NAC 445B.252 Testing and Sampling (State Only Requirement) (continued)

5. Each test of performance must consist of at least three separate runs using the applicable method for that test. Each run must be conducted for the time and under the conditions specified in the applicable standard. For the purpose of determining compliance with an applicable standard, the arithmetic means of results of the runs apply. In the event of forced shutdown, failure of an irreplaceable portion of the sampling train, extreme meteorological conditions or other circumstances with less than three valid samples being obtained, compliance may be determined using the arithmetic mean of the results of the other two runs upon the Director’s approval.

6. All testing and sampling will be performed in accordance with recognized methods and as specified by the Director. 7. The cost of all testing and sampling and the cost of all sampling holes, scaffolding, electric power and other pertinent allied

facilities as may be required and specified in writing by the Director must be provided and paid for by the owner of the stationary source.

8. All information and analytical results of testing and sampling must be certified as to their truth and accuracy and as to their compliance with all provisions of these regulations, and copies of these results must be provided to the Director no later than 60 days after the testing or sampling, or both.

9. Notwithstanding the provisions of subsection 2, the Director shall not approve an alternative method or equivalent method to determine compliance with a standard or emission limitation contained in Part 60, 61 or 63 of Title 40 of the Code of Federal Regulations for: a. An emission unit that is subject to a testing requirement pursuant to Part 60, 61 or 63 of Title 40 of the Code of

Federal Regulations; or b. An affected source.

T. SIP 445B.252 Testing and sampling (Federally Enforceable SIP Requirement) 1. To determine compliance with NAC 445B.001 to 445B.3497, inclusive, before the approval or the continuance of an

operating permit or similar class of permits, the Director may either conduct or order the owner of any stationary source to conduct or have conducted such testing and sampling as the Director determines necessary. Testing and sampling or either of them must be conducted and the results submitted to the Director within 60 days after achieving the maximum rate of production at which the affected facility will be operated, but not later than 180 days after initial start-up of the facility and at such other times as may be required by the Director.

2. Tests of performance must be conducted and data reduced in accordance with the methods and procedures of the test contained in each applicable subsection of this section unless the Director: a. Specifies or approves, in specific cases, the use of a reference method with minor changes in methodology; or b. Waives the requirement for tests of performance because the owner or operator of a stationary source has

demonstrated by other means to the Director’s satisfaction that the affected facility is in compliance with the standard.

3. Tests of performance must be conducted under such conditions as the Director specifies to the operator of the plant based on representative performance of the affected facility. The owner or operator shall make available to the Director such records as may be necessary to determine the conditions of the test of performance. Operations during periods of start-up, shutdown and malfunction must not constitute representative conditions of a test of performance unless otherwise specified in the applicable standard.

4. The owner or operator of an affected facility shall give notice to the Director 30 days before the test of performance to allow the Director to have an observer present. A written testing procedure for the test of performance must be submitted to the Director at least 30 days before the test of performance to allow the Director to review the proposed testing procedures.

5. Each test of performance must consist of at least three separate runs using the applicable method for that test. Each run must be conducted for the time and under the conditions specified in the applicable standard. For the purpose of determining compliance with an applicable standard, the arithmetic means of results of the runs apply. In the event of forced shutdown, failure of an irreplaceable portion of the sampling train, extreme meteorological conditions or other circumstances with less than three valid samples being obtained, compliance may be determined using the arithmetic mean of the results of the other two runs upon the Director’s approval.




22

Section I. General Conditions (continued) T. SIP 445B.252 Testing and sampling (Federally Enforceable SIP Requirement) (continued)

6. The cost of all testing and sampling and the cost of all sampling holes, scaffolding, electric power and other pertinent allied facilities as may be required and specified in writing by the Director must be provided and paid for by the owner of the stationary source.

7. All information and analytical results of testing and sampling must be certified as to their truth and accuracy and as to their compliance with all provisions of these regulations, and copies of these results must be provided to the Director no later than 60 days after the testing or sampling, or both.

8. Notwithstanding the provisions of subsection 2, the Director shall not approve an alternative method or equivalent method to determine compliance with a standard or emission limitation contained in Part 60, 61 or 63 of Title 40 of the Code of Federal Regulations for: a. An emission unit that is subject to a testing requirement pursuant to Part 60, 61 or 63 of Title 40 of the Code of

Federal Regulations; or b. An affected source.

U. NAC 445B.22017 (Federally Enforceable SIP Requirement)

Visible Emissions: Maximum Opacity; Determination and Monitoring of Opacity. 1. Except as otherwise provided in this section and NAC 445B.2202, no owner or operator may cause or permit the discharge

into the atmosphere from any emission unit which is of an opacity equal to or greater than 20 percent. Opacity must be determined by one of the following methods: a. If opacity is determined by a visual measurement, it must be determined as set forth in Reference Method 9 in

Appendix A of 40 CFR Part 60. b. If a source uses a continuous monitoring system for the measurement of opacity, the data must be reduced to 6-

minute averages as set forth in 40 CFR 60.13(h). 2. The provisions of this section and NAC 445B.2202 do not apply to that part of the opacity that consists of uncombined

water. The burden of proof to establish the application of this exemption is upon the person seeking to come within the exemption.

3. If the provisions of 40 CFR Part 60, Subpart D or Da apply to an emission unit, the emission unit shall be allowed one 6-minute period per hour of not more than 27 percent opacity as set forth in 40 CFR 60.42(a)(2) and 40 CFR 60.42a(b).

4. The continuous monitoring system for monitoring opacity at a facility shall be operated and maintained by the owner or operator specified in the permit for the facility in accordance with NAC 445B.256 to 445B.267, inclusive.

V. NAC 445B.22037 (Federally Enforceable SIP Requirement)

Emissions of Particulate Matter: Fugitive Dust 1. The Permittee may not cause or permit the handling, transporting, or storing of any material in a manner which allows or

may allow controllable particulate matter to become airborne. 2. Except as otherwise provided in subsection 4, the Permittee may not cause or permit the construction, repair, demolition, or

use of unpaved or untreated areas without first putting into effect an ongoing program using the best practical methods to prevent particulate matter from becoming airborne. As used in this subsection, “best practical methods” includes, but is not limited to, paving, chemical stabilization, watering, phased construction, and revegetation.

3. Except as provided in subsection 4, the Permittee may not disturb or cover 5 acres or more of land or its topsoil until The Permittee has obtained an Operating permit for surface area disturbance to clear, excavate, or level the land or to deposit any foreign material to fill or cover the land.

4. The provisions of subsections 2 and 3 do not apply to: a. Agricultural activities occurring on agricultural land; or b. Surface disturbances authorized by a permit issued pursuant to NRS 519A.180 which occur on land which is not less

than 5 acres or more than 20 acres. W. NAC 445B.22067

Open Burning The open burning of any combustible refuse, waste, garbage, oil, or for any salvage operations, except as specifically exempted, is prohibited. Specific exemptions from open burning are described in NAC 445B.22067(2).




23

Section I. General Conditions (continued) X. NAC 445B.22087 (State Only Requirement)

Odors The Permittee may not discharge or cause to be discharged, from any stationary source, any material or regulated air pollutant which is or tends to be offensive to the senses, injurious or detrimental to health and safety, or which in any way interferes with or prevents comfortable enjoyment of life or property.

Y. NAC 445B.319, 445B.342, 445B.3425 and 445B.344 Part 70 Program

Any changes to this operating permit will comply with all provisions established under NAC 445B.319, 445B.342, 445B.3425 and 445B.344.

Z. NAC 445B.3443 Part 70 Program

Renewal of this operating permit will be in accordance with NAC 445B.3443.

****End of General Conditions****




24

Section II. General Construction Conditions A. NAC 445B.250 Notification of Planned Construction or Reconstruction. (Federally Enforceable SIP Requirement)

Any owner or operator subject to the provisions of NAC 445B.001 to 4445B.3689, inclusive, shall furnish the Director written notification of: 1. The date of construction or reconstruction of S2.393 and S2.394 is commenced, postmarked no later than 30 days after such

date. This requirement shall not apply to mass-produced facilities which are purchased in completed form. 2. The anticipated date of initial startup of S2.393 and S2.394, postmarked not more than 60 days nor less than 30 days prior to

such date. 3. The actual date of initial startup of S2.393 and S2.394, postmarked within 15 days after such date.

B. NAC 445B.3366 Part 70 Program

Expiration This Operating Permit expires if construction is not commenced within 18 months after the date of issuance thereof or construction of the facility is delayed for 18 months after initiated.

****End of General Construction Conditions****




25

Section IIA. Specific Construction Requirements A. Initial Opacity Compliance Demonstration and Initial Performance Tests (NAC 445B.22017, NAC 445B.252, and NAC

445B.3405(3)) Federally Enforceable SIP Requirements) 1. The Permittee, upon issuance of this operating permit, shall conduct initial performance tests not later than 180 days after

permit issuance. The Permittee shall follow the test methods and procedures referenced in Table IIA-1 below:

Table IIA-1: Initial Opacity Compliance Demonstration and Initial Performance Tests

System Emission Unit(s) Pollutants To Be Tested Testing Methods/Procedures

System 72 – Metallurgical

Laboratory - Fire Assay Facility

S2.074.1 through S2.074.3 SO2

Method 6C in Appendix A of 40 CFR Part 60 shall be used to determine the sulfur dioxide concentration. Each test will be run for

a minimum of one hour.

System 97 – Intermediate

Crushing Systems (Mill #1 and #2)

PF1.457, PF1.459, PF1.460, PF1.461,

PF1.463, and PF1.464 Opacity

Method 9 in Appendix A of 40 CFR Part 60 shall be used to determine opacity. Opacity observations shall be conducted

concurrently with the applicable performance test. The minimum total time of observations shall be six minutes (24 consecutive observations recorded at 15 second intervals), unless otherwise

specified by an applicable subpart.

System 141 – TKI Boiler S2.361

NOX Method 7E in Appendix A of 40 CFR Part 60 shall be used to

determine the nitrogen oxides concentration. Each test will be run for a minimum of one hour.

CO Method 10 in Appendix A of 40 CFR Part 60 shall be used to

determine the carbon monoxide concentration. Each test will be run for a minimum of one hour.

VOC

Method 25A in Appendix A of 40 CFR Part 60 shall be used to determine the volatile organic compound concentration. Method 18 in Appendix A of 40 CFR Part 60 or Method 320 in Appendix A of CFR Part 63 may be used in conjunction with Method 25A to break

out the organic compounds that are not considered VOC’s by definition per 40 CFR 51.100(s). Each Method 25A test will be run

for a minimum of one hour.

2. All initial opacity compliance demonstrations must comply with the advance notification, protocol review, operational conditions, reporting, and other requirements of Section I.S. Testing and Sampling (NAC 445B.252) and Section I.T. Testing and Sampling (SIP NAC 445B.252) of this operating permit. Material sampling must be conducted in accordance with protocols approved by the Director. All initial performance test results shall be based on the arithmetic average of three valid runs. (NAC 445B.252(5))

3. Testing shall be conducted on the exhaust stack (post controls). 4. Initial opacity compliance demonstrations in Table IIA-1 above, must be conducted under such conditions as the Director

specifies to the operator of the plant based on representative performance of the affected facility. The Permittee shall make available to the Director such records as may be necessary to determine the conditions of the initial opacity compliance demonstrations. Operations during periods of startup, shutdown and malfunction must not constitute representative conditions of the initial opacity compliance demonstrations unless otherwise specified in the applicable standard. (NAC 445B.252(3))

5. The Permittee shall give notice to the Director 30 days before the initial opacity compliance demonstrations to allow the Director to have an observer present. A written testing procedure must be submitted to the Director at least 30 days before the initial opacity compliance demonstrations to allow the Director to review the proposed testing procedures. (NAC 445B.252(4) and 40 CFR Part 60.7(a)(6))




26

Section IIA. Specific Construction Requirements (continued)

A. Initial Opacity Compliance Demonstration and Initial Performance Tests (NAC 445B.22017, NAC 445B.252, and NAC 445B.3405(3)) Federally Enforceable SIP Requirements)(continued)

6. Within 60 days after completing the initial opacity compliance demonstrations contained in Table IIA-1 of this section, the

Permittee shall furnish the Director a written report of the results. All information and analytical results of testing and sampling must be certified as to the truth and accuracy and as to their compliance with NAC 445B.001 to 445B.3689, inclusive. (NAC 445B.252(8))

7. Initial opacity compliance demonstrations required under this section that are conducted below the maximum allowable throughput, shall be subject to the Director’s review to determine if the throughputs during the initial opacity compliance demonstrations sufficient to provide adequate compliance demonstration. Should the Director determine that the initial opacity compliance demonstrations do not provide adequate compliance demonstration, the Director may require additional testing.

****End of Specific Construction Conditions****




27

Section III. General Operating Conditions A. NAC 445B.227 Part 70 Program

Facilities Operation The Permittee may not: 1. Operate a stationary source of air pollution unless the control equipment for air pollution which is required by applicable

requirements or conditions of this operating permit is installed and operating. 2. Disconnect, alter, modify or remove any of the control equipment for air pollution or modify any procedure required by an

applicable requirement or condition of this operating permit.

B. NAC 445B.232 (State Only Requirement) Excess Emissions 1. Scheduled maintenance or testing or scheduled repairs which may result in excess emissions of regulated air pollutants

prohibited by NAC 445B.001 to 445B.3689, inclusive, must be approved in advance by the Director and performed during a time designated by the Director as being favorable for atmospheric ventilation.

2. Each owner or operator shall notify the Director of the proposed time and expected duration at least 30 days before any scheduled maintenance or testing which may result in excess emissions of regulated air pollutants prohibited by NAC 445B.001 to 445B.3689, inclusive. The scheduled maintenance or testing must not be conducted unless the scheduled maintenance or testing is approved pursuant to subsection 1.

3. Each owner or operator shall notify the Director of the proposed time and expected duration at least 24 hours before any scheduled repairs which may result in excess emissions of regulated air pollutants prohibited by NAC 445B.001 to 445B.3689, inclusive. The scheduled repairs must not be conducted unless the scheduled repairs are approved pursuant to subsection 1.

4. Each owner or operator shall notify the Director of any excess emissions within 24 hours after any malfunction or upset of the process equipment or equipment for controlling pollution or during start-up or shutdown of that equipment. Email to: [email protected]

5. Each owner or operator shall provide the Director, within 15 days after any malfunction, upset, start-up, shutdown or human error which results in excess emissions, sufficient information to enable the Director to determine the seriousness of the excess emissions. The information must include at least the following: a. The identity of the stack or other point of emission, or both, where the excess emissions occurred. b. The estimated magnitude of the excess emissions expressed in opacity or in the units of the applicable limitation on

emission and the operating data and methods used in estimating the magnitude of the excess emissions. c. The time and duration of the excess emissions. d. The identity of the equipment causing the excess emissions. e. If the excess emissions were the result of a malfunction, the steps taken to remedy the malfunction and the steps

taken or planned to prevent the recurrence of the malfunction. f. The steps taken to limit the excess emissions. g. Documentation that the equipment for controlling air pollution, process equipment or processes were at all times

maintained and operated, to a maximum extent practicable, in a manner consistent with good practice for minimizing emissions.

6. Each owner or operator shall ensure that any notification or related information submitted to the Director pursuant to this section is provided in a format specified by the Director.




28

Section III. General Operating Conditions (continued) C. SIP 445.667 (Federally Enforceable SIP Requirement)

Excess Emissions: Scheduled Maintenance; Testing; Malfunctions 1. Scheduled maintenance or testing approved by the Director or repairs which may result in excess emissions of air

contaminants prohibited by SIP 445.430 to 445.846, inclusive, must be performed during a time designated by the Director as being favorable for atmospheric ventilation.

2. The Director shall be notified in writing of the time and expected duration at least 24 hours in advance of any scheduled maintenance or repairs which may result in excess emissions of air contaminants prohibited by NAC 445.430 to 445.846, inclusive.

3. The Director must be notified within 24 hours after any malfunction, breakdown or upset of process or pollution control equipment or during startup of such equipment.

4. The owner or operator of an affected facility shall provide the Director, within 15 days after any malfunction, breakdown, upset, startup or human error sufficient information to enable the Director to determine the seriousness of the excess emissions. The submission must include as a minimum: a. The identity of the stack and/or other emission point where the excess emission occurred. b. The estimated magnitude of the excess emissions expressed in opacity or in the units of the applicable emission

limitation and the operating data and methods used in estimating the magnitude of the excess emissions. c. The time and duration of the excess emissions. d. The identity of the equipment causing the excess emissions. e. If the excess emissions were the result of a malfunction, steps taken to remedy the malfunction and the steps taken or

planned to prevent the recurrence of the malfunctions. f. The steps taken to limit the excess emissions. g. Documentation that the air pollution control equipment, process equipment or processes were at all times maintained

and operated, to a maximum extent practicable, in a manner consistent with good practice for minimizing emissions.

D. SIP Article 2.5.4 (Federally Enforceable SIP Requirement) 1. Breakdown or upset, determined by the Director to be unavoidable and not the result of careless or marginal operations,

shall not be considered a violation of these regulations.

****End of General Operating Conditions****




29

Section IV. Federal Regulations and Applicable Requirements A. The following provisions are applicable requirements of this Operating Permit:

1. The Permittee will comply with all applicable provisions of: a. 40 CFR Part 60.1 - 60.19 - Standards of Performance for New Stationary Sources - General Provisions; b. 40 CFR Part 61.01 - 61.19 - National Emission Standards for Hazardous Air Pollutants - General Provisions; c. 40 CFR Part 61.140 - 61.157 - National Emission Standard for Asbestos; d. 40 CFR Part 63.1 - 63.15 - National Emission Standards for Hazardous Air Pollutants for Source Categories -

General Provisions; e. 40 CFR Part 70 - State Operating Permit Programs.

2. This provision is applicable if the Permittee is subject to 40 CFR Part 68 - Chemical Accident Prevention Provisions. The Permittee shall submit a risk management plan (RMP) by dates specified in 40 CFR 68.10. The Permittee shall certify compliance with these requirements as part of the annual compliance certification as required by 40 CFR Part 70.

3. This provision is applicable if the Permittee is subject to 40 CFR Part 82. The Permittee will comply with all provisions of 40 CFR Part 82. Persons opening appliances for maintenance, service, repair, or disposal must comply with the required practices pursuant to 40 CFR 82.156. Equipment used during maintenance, service, repair, or disposal of appliances must meet the standards for recycling and recovery equipment in accordance with 40 CFR 82.158. Persons performing maintenance, service, repair or disposal of appliances must be certified by a certified technician pursuant to 40 CFR 82.161.

****End of Federal Regulations and Applicable Requirements****




30

Section V. General Monitoring, Recordkeeping, and Reporting Requirements A. NAC 445B.315(3)(b) Part 70 Program

The Permittee shall retain records of all required monitoring data and supporting information for 5 years from the date of the sample collection, measurement, report or analysis. Supporting information includes, but is not limited to, all records regarding calibration and maintenance of the monitoring equipment and all original strip-chart recordings for continuous monitoring instrumentation.

B. NAC 445B.3405(1)(d) Part 70 Program The Permittee will record: 1. Monitoring information required by the conditions of this permit including the date, the location and the time of the

sampling or the measurements and the operating conditions at the time of the sampling or measurements; and 2. The date on which the analyses were performed, the company that performed them, the analytical techniques that the

company used, and the results of such analyses.

C. NAC 445B.3405(1)(e) Part 70 Program The Permittee will: 1. Promptly report to the Director all deviations from the requirements of this operating permit; and 2. Report to the Director the probable cause of all deviations and any action taken to correct the deviations. For this operating

permit, prompt is defined as submittal of a report within 15 days of the deviation. This definition does not alter any reporting requirements as established for reporting of excess emissions as required under NAC 445B.232 and under Section III.B of this operating permit, or for reporting of an emergency (as defined by NAC 445B.326) under Section I.I. of this operating permit; and

3. Submit reports of any required monitoring every 6 months, within 8 weeks after June 30 and December 31 of each calendar year. The reports must contain a summary of the data collected as required by all monitoring, recordkeeping and compliance requirements and as specified in Sections VI and VII of this operating permit.

D. NAC 445B.315(3)(h) Part 70 Program

The Permittee will submit yearly reports including, but not limited to, throughput, production, fuel consumption, hours of operation, and emissions. These reports will be submitted on the form provided by the Bureau of Air Pollution Control for all emission units/systems specified on the form. The completed form must be submitted to the Bureau of Air Pollution Control no later than March 1 annually for the preceding calendar year, unless otherwise approved by the Bureau of Air Pollution Control.

E. NAC 445B.3405(1)(j) Part 70 Program The Permittee will submit a compliance certification for all applicable requirements, reflecting the terms and conditions of the permit, to the Administrator of the Division of Environmental Protection and the Administrator of USEPA annually, on or before March 1 for the preceding calendar year. The compliance certification must include: a. An identification of each term or condition of the operating permit that is the basis of the certification; b. The status of the stationary source’s compliance with any applicable requirement; c. A statement of whether compliance was continuous or intermittent; d. The method used for determining compliance; and e. Any other facts the Director determines to be necessary to determine compliance.

F. NAC 445B.063 State-Only Requirement

The Department may use any credible evidence or information, relevant to whether a source would have been in compliance with applicable requirements if the appropriate performance or compliance test or procedure had been performed, to determine excess emissions.




31

Section V. General Monitoring, Recordkeeping, and Reporting Requirements (continued) G. NAC 445B.265 (Federally Enforceable SIP Requirement)

Monitoring systems: Records; Reports 1. The Permittee subject to the provisions of NAC 445B.256 to 445B.267, inclusive, shall maintain records of the occurrence

and duration of any start-up, shutdown or malfunction in the operation of an affected facility and any malfunction of the air pollution control equipment or any periods during which a continuous monitoring system or monitoring device is inoperative.

2. The Permittee required to install a continuous monitoring system shall submit a written report of excess emissions to the director for every calendar quarter. All quarterly reports must be postmarked by the 30th day following the end of each calendar quarter and must include the following information: a. The magnitude of excess emissions computed in accordance with NAC 445B.256 to 445B.267, inclusive, any

conversion factors used, and the date and time of commencement and completion of each time period of excess emissions.

b. Specific identification of each period of excess emissions that occurs during start-ups, shutdowns and malfunctions of the affected facility.

c. The nature and cause of any malfunction, if known, the corrective action taken or preventative measures adopted. d. Specific identification of each period during which the continuous monitoring system was inoperative, except for

zero and span checks, and the nature of any repairs or adjustments that were made. • When no excess emissions have occurred and the continuous monitoring system has not been inoperative, repaired

or adjusted, such information shall be included in the report. 3. The Permittee subject to the provisions of NAC 445B.256 to 445B.267, inclusive, shall maintain a file of all measurements,

including: a. Continuous monitoring systems, monitoring devices and performance testing measurements; b. All continuous monitoring system performance evaluations; c. All continuous monitoring systems or monitoring device calibration checks; d. Adjustments and maintenance performed on these systems or devices; and e. All other information required by NAC 445B.256 to 445B.267, inclusive, recorded in a permanent form suitable for

inspection. • The file shall be retained for at least 2 years following the date of the measurements, maintenance, reports and

records.

****End of General Monitoring, Recordkeeping, and Reporting Requirements****




32

Section VI. Specific Operating Conditions A. Emission Units S2.001, PF1.009, and PF1.009.1

System 01 – Mill #1 Circuit – 120 ton Lime Silo Location UTM (Zone 11, NAD 83) m North m East

S2.001 Lime Silo Loading 4,536,179 554,627 PF1.009 Lime Silo Discharge to Screw Conveyor 4,536,188 554,623 PF1.009.1 Screw Conveyor Transfer to Mill Conveyor 4,536,184 554,623

1. NAC 445B.3405 (NAC 445B.316) Part 70 Program

Air Pollution Control Equipment a. Emissions from S2.001 shall be controlled by a vent filter. b. Emissions from PF1.009 and PF1.009.1 shall be controlled by an enclosure. c. Descriptive Stack Parameters for S2.001

Stack Height: 51.0 feet Stack Diameter: 1.00 foot Stack Temperature: ambient Exhaust Flow: 1,300 dry standard cubic feet per minute (dscfm)

2. NAC 445B.3405 (NAC 445B.316) Part 70 Program Operating Parameters a. The maximum allowable throughput rate for S2.001 shall not exceed 65.0 tons of lime per any one-hour period, nor

more than 15,000.0 tons per year, based on a 12-month rolling period. b. The maximum allowable throughput rate for PF1.009 and PF1.009.1, each, shall not exceed 2.0 tons of lime per any

one-hour period, nor more than 15,000.0 tons per year, based on a 12-month rolling period. c. Hours

(1) S2.001, PF1.009, and PF1.009.1, each, may operate a total of 24 hours per day.

3. NAC 445B.3405 (NAC 445B.316) Part 70 Program Emission Limits a. The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere

from S2.001 the following pollutants in excess of the following specified limits: (1) NAC 445B.305 Part 70 Program – The discharge of PM (particulate matter) to the atmosphere shall not

exceed 0.064 pound per hour, nor more than 0.007 ton per year, based on 12-month rolling period. (2) NAC 445B.305 Part 70 Program – The discharge of PM10 (particulate matter less than or equal to 10 microns

in diameter) to the atmosphere shall not exceed 0.022 pound per hour, nor more than 0.003 ton per year, based on 12-month rolling period.

(3) NAC 445B.305 Part 70 Program – The discharge of PM2.5 (particulate matter less than or equal to 2.5 microns in diameter) to the atmosphere shall not exceed 0.0033 pound per hour, nor more than 0.0004 ton per year, based on 12-month rolling period.

(4) NAC 445B.22033 Federally Enforceable SIP Requirement – The maximum allowable discharge of PM10 (particulate matter less than or equal to 10 microns in diameter) to the atmosphere from S2.001 shall not exceed 47.05 pounds per hour.

(5) NAC 445B.22017 Federally Enforceable SIP Requirement – The opacity from S2.001 shall not equal or exceed 20%.




33

Section VI. Specific Operating Conditions (continued) A. Emission Units S2.001, PF1.009, and PF1.009.1 (continued)


Emission Limits (continued) b. The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere

from PF1.009 and PF1.009.1, each, the following pollutants in excess of the following specified limits: (1) NAC 445B.305 Part 70 Program – The discharge of PM (particulate matter) to the atmosphere shall not



(3) NAC 445B.305 Part 70 Program –The discharge of PM2.5 (particulate matter less than or equal to 2.5 microns in diameter) to the atmosphere shall not exceed 0.0004 pound per hour, nor more than 0.0015 ton per year, based on 12-month rolling period.

(4) NAC 445B.22033 Federally Enforceable SIP Requirement – The maximum allowable discharge of PM10 (particulate matter less than or equal to 10 microns in diameter) to the atmosphere from PF1.009 and PF1.009.1, each, shall not exceed 6.52 pounds per hour.

(5) NAC 445B.22017 Federally Enforceable SIP Requirement – The opacity from PF1.009 and PF1.009.1, each, shall not equal or exceed 20%.


Monitoring The permittee, upon issuance of this operating permit, shall a. Monitor and record the throughput for S2.001, PF1.009, and PF1.009.1, each, on a daily basis. b. Monitor and record the hours of operation for S2.001, PF1.009, and PF1.009.1, each, on a daily basis. c. Record the average hourly throughput rate (in tons per hour) for S2.001, PF1.009, and PF1.009.1, each, using the

daily throughput and the daily hours of operation. d. Record the throughput rate of lime for S2.001, PF1.009, and PF1.009.1, each, on a cumulative monthly basis, for

each 12- month rolling period. e. Conduct and record an observation of visible emissions (excluding water vapor) on the vent filter on a monthly basis

while operating. The observer shall stand at a distance sufficient to provide a clear view of the emissions with the sun oriented to their back. If visible emissions are observed, the Permittee shall conduct and record a Method 9 visible emission test. Each Method 9 visible emission test must be conducted by a certified visible emissions reader in accordance with 40 CFR Part 60, Appendix A.

f. Inspect the vent filter installed on S2.001 in accordance with the manufacturer’s operation and maintenance manual and record the results (e.g. the condition of the filter fabric), and any corrective actions taken. If no operation and maintenance manual is available, inspections shall be conducted monthly.

g. Conduct and record an observation of visible emissions (excluding water vapor) on PF1.009 and PF1.009.1 on a monthly basis while operating. The observer shall stand at a distance sufficient to provide a clear view of the emissions with the sun oriented to their back. If visible emissions are observed, the Permittee shall conduct and record a Method 9 visible emission test. Each Method 9 visible emission test shall be conducted by a certified visible emissions reader in accordance with 40 CFR Part 60, Appendix A.

h. Inspect the enclosure installed on PF1.009 and PF1.009.1 on a monthly basis to confirm that the enclosure is in place and functioning properly. If the enclosure is in disrepair, the Permittee shall initiate corrective action within 24 hours and complete corrective action as expediently as practical to ensure that the enclosure is functioning properly. The Permittee must record each inspection of the enclosures, including the date of each inspection and any corrective actions taken.

5. NAC 445B.3405 (NAC 445B.316) Part 70 Program Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in A.4. of this section.




34

Section VI. Specific Operating Conditions (continued) B. Emission Unit S2.080

System 02 – Boulder Valley Water Treatment Plant 500 ton Lime Silo Location UTM (Zone 11, NAD 83) m North m East

S2.080 Lime Silo, 500 ton, Loading (includes Silo discharge to Screw Conveyor, formerly PF1.027, and Screw Conveyor Transfer to Mill Conveyor, formerly PF1.028) 4,533,292 547,257


Air Pollution Control Equipment a. Emissions from S2.080 shall be controlled by a vent filter. b. Descriptive Stack Parameters for S2.080

Stack Height: 51.0 feet Stack Diameter: 1.25 feet Stack Temperature: ambient Exhaust Flow: 2,300 dry standard cubic feet per minute (dscfm)


more than 22,500.0 tons per year, based on a 12-month rolling period. b. Hours

(1) S2.080 may operate a total of 24 hours per day.

3. NAC 445B.3405 (NAC 445B.316) Part 70 Program Emission Limits The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from S2.080 the following pollutants in excess of the following specified limits: a. NAC 445B.305 Part 70 Program – The discharge of PM (particulate matter) to the atmosphere shall not exceed

0.064 pound per hour, nor more than 0.011 ton per year, based on 12-month rolling period. b. NAC 445B.305 Part 70 Program – The discharge of PM10 (particulate matter less than or equal to 10 microns in

diameter) to the atmosphere shall not exceed 0.022 pound per hour, nor more than 0.004 ton per year, based on 12-month rolling period.

c. NAC 445B.305 Part 70 Program – The discharge of PM2.5 (particulate matter less than or equal to 2.5 microns in diameter) to the atmosphere shall not exceed 0.0033 pound per hour, nor more than 0.0006 ton per year, based on 12-month rolling period.

d. NAC 445B.22033 Federally Enforceable SIP Requirement – The maximum allowable discharge of PM10 (particulate matter less than or equal to 10 microns in diameter) to the atmosphere from S2.080 shall not exceed 47.05 pounds per hour.

e. NAC 445B.22017 Federally Enforceable SIP Requirement – The opacity from S2.080 shall not equal or exceed 20%.




35

Section VI. Specific Operating Conditions (continued) B. Emission Unit S2.080 (continued)

4. NAC 445B.3405 (NAC 445B.316) Part 70 Program Monitoring The permittee, upon issuance of this operating permit, shall: a. Monitor and record the throughput for S2.080 on a daily basis. b. Monitor and record the hours of operation for S2.080 on a daily basis. c. Record the average hourly throughput rate (in tons per hour) for S2.080 using the daily throughput and the daily

hours of operation. d. Record the throughput rate of lime for S2.080 on a cumulative monthly basis, for each 12- month rolling period. e. Conduct and record an observation of visible emissions (excluding water vapor) on the vent filter on a monthly basis




Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in B.4. of this section.




36

Section VI. Specific Operating Conditions (continued) C. Emission Units S2.022 and S2.023

System 04 – Boilers #2 and #3 Autoclave Circuit Location UTM (Zone 11, NAD 83) m North m East

S2.022 Boiler #2, Foster Wheeler AG-5110B 4,536,106 554,716 S2.023 Boiler #3, Foster Wheeler AG-5110B 4,536,032 554,743


Air Pollution Control Equipment a. Emissions from S2.022 and S2.023 shall each be equipped with Coen low – NOx burners. b. Descriptive Stack Parameters for S2.022

Stack Height: 49 feet Stack Diameter: 3.96 feet Stack Temperature: 305°F Exhaust Flow: 15,471 dry standard cubic feet per minute (dscfm)

c. Descriptive Stack Parameters for S2.023 Stack Height: 49 feet Stack Diameter: 4.02 feet Stack Temperature: 329°F Exhaust Flow: 16,745 dry standard cubic feet per minute (dscfm)


Operating Parameters a. S2.022 and S2.023 may each consume either propane or natural gas. Combustion of a blend of these fuels is

prohibited. b. The maximum allowable fuel consumption rate for S2.022 and S2.023, each, shall not exceed 1,311.0 gallons of

propane per any one-hour period. c. The maximum allowable fuel consumption rate for S2.022 and S2.023, each, shall not exceed 117,647.0 cubic feet

of natural gas per any one-hour period. d. Hours

(1) S2.022 and S2.023, each, may operate a total of 24 hours per day.

3. NAC 445B.3405 (NAC 445B.316) Part 70 Program Emission Limits The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from S2.022 and S2.023, each, the following pollutants in excess of the following specified limits: a. NAC 445B.305 Part 70 Program – The discharge of PM (particulate matter) to the atmosphere shall not exceed 1.10

pounds per hour, nor more than 4.82 tons per year, based on 12-month rolling period. b. NAC 445B.305 Part 70 Program – The discharge of PM10 (particulate matter less than or equal to 10 microns in

diameter) to the atmosphere shall not exceed 1.10 pounds per hour, nor more than 4.82 tons per year, based on 12-month rolling period.

c. NAC 445B.305 Part 70 Program – The discharge of PM2.5 (particulate matter less than or equal to 2.5 microns in diameter) to the atmosphere shall not exceed 1.10 pounds per hour, nor more than 4.82 tons per year, based on 12-month rolling period.

d. NAC 445B.305 Part 70 Program – The discharge of SO2 (sulfur dioxide) to the atmosphere shall not exceed 0.23 pound per hour, nor more than 0.99 ton per year, based on 12-month rolling period.

e. NAC 445B.305 Part 70 Program – The discharge of NOX (oxides of nitrogen) to the atmosphere shall not exceed 6.72 pounds per hour, nor more than 29.43 tons per year, based on 12-month rolling period.

f. NAC 445B.305 Part 70 Program – The discharge of CO (carbon monoxide) to the atmosphere shall not exceed 4.32 pounds per hour, nor more than 18.92 tons per year, based on 12-month rolling period.




37

Section VI. Specific Operating Conditions (continued) C. Emission Units S2.022 and S2.023 (continued)


Emission Limits (continued) The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from S2.022 and S2.023, each, the following pollutants in excess of the following specified limits: g. NAC 445B.305 Part 70 Program – The discharge of VOCs (volatile organic compounds) to the atmosphere shall not

exceed 0.325 pound per hour, nor more than 1.42 tons per year, based on 12-month rolling period. h. NAC 445B.2203 Federally Enforceable SIP Requirement – The maximum allowable discharge of PM10 (particulate

matter less than or equal to 10 microns in diameter) to the atmosphere from S2.022 and S2.023, each, shall not exceed 0.34 pound per MMBtu.

i. NAC 445B.22017 Federally Enforceable SIP Requirement – The opacity from S2.022 and S2.023, each, shall not equal or exceed 20%.

j. NAC 445B.22047 Federally Enforceable SIP Requirement – The maximum allowable discharge of Sulfur to the atmosphere from S2.022 and S2.023, each, shall not exceed 84.0 pounds per hour, each.


Performance Testing a. The Permittee, upon issuance of this operating permit, shall conduct renewal performance testing at least 90 days

prior to the expiration of this operating permit, but no earlier than 365 days from the date of expiration of this operating permit, and every 5 years thereafter, in accordance with the following: (1) All performance and opacity tests must comply with the advance notification, protocol review, operational

conditions, reporting, and other requirements of Section I.S. Testing and Sampling (NAC 445B.252) and Section I.T. Testing and Sampling (SIP NAC 445B.252) of this operating permit. Material sampling must be conducted in accordance with protocols approved by the Director. All performance test results shall be based on the arithmetic average of three valid runs (NAC 445B.252(5)).

(2) Testing shall be conducted on the exhaust stack (post controls). (3) Method 5 in Appendix A of 40 CFR Part 60 shall be used to determine PM emissions. The sample volume for

each test run shall be at least 1.7 dscm (60 dscf). Test runs must be conducted for up to two hours in an effort to collect this minimum sample.

(4) Method 201A and Method 202 in Appendix M of 40 CFR Part 51 shall be used to determine PM10 and PM2.5 emissions. The sample time and sample volume collected for each test run shall be sufficient to collect enough mass to weigh accurately.

(5) The Method 201A and 202 test required in this section may be replaced by a Method 5 in Appendix A of 40 CFR Part 60 and Method 202 in Appendix M of 40 CFR Part 51 test. All particulate captured in the Method 5 and Method 202 test performed under this provision shall be considered PM2.5 for determination of compliance.

(6) Method 7E in Appendix A of 40 CFR Part 60 shall be used to determine the nitrogen oxides concentration. Each test will be run for a minimum of one hour.

(7) Method 9 in Appendix A of 40 CFR Part 60 shall be used to determine opacity. Opacity observations shall be conducted concurrently with the applicable performance test. The minimum total time of observations shall be six minutes (24 consecutive observations recorded at 15 second intervals), unless otherwise specified by an applicable subpart.

(8) Method 10 in Appendix A of 40 CFR Part 60 shall be used to determine the carbon monoxide concentration. Each test will be run for a minimum of one hour.

(9) Method 25A in Appendix A of 40 CFR Part 60 shall be used to determine the volatile organic compound concentration. Method 18 in Appendix A of 40 CFR Part 60 or Method 320 in Appendix A of CFR Part 63 may be used in conjunction with Method 25A to break out the organic compounds that are not considered VOC’s by definition per 40 CFR 51.100(s). Each Method 25A test will be run for a minimum of one hour




38

Section VI. Specific Operating Conditions (continued) C. Emission Units S2.022 and S2.023 (continued)


Performance Testing (continued) b. When S2.022 and/or S2.023 are consuming propane, the Permittee shall conduct annual performance testing within

90 days of the anniversary date of the previous initial performance testing or annual performance testing, and annually thereafter for as long as propane is combusted in S2.022 and/or S2.023, in accordance with the following: (1) All performance and opacity tests must comply with the advance notification, protocol review, operational


(2) Testing shall be conducted on the exhaust stack (post controls). (3) Method 6C in Appendix A of 40 CFR Part 60 shall be used to determine the sulfur dioxide concentration.

Each test will be run for a minimum of one hour. c. The performance testing required to determine the concentration of nitrogen oxides and carbon monoxide under

C.4.a. (6) and (8) of this section shall be conducted within 60 days of switching the fuel combusted in S2.022 and/or S2.023 as allowed under C.2.a.

d. The performance testing required to determine the concentration of sulfur dioxide under C.4.b. (3) of this section shall be conducted within 60 days of switching the fuel combusted in S2.022 and/or S2.023 to propane as allowed under C.2.a.


Monitoring The permittee, upon issuance of this operating permit, shall: a. Monitor and record the hours of operation while consuming propane for S2.022 and S2.023, each, on a daily basis. b. Monitor and record the hours of operation while consuming natural gas for S2.022 and S2.023, each, on a daily

basis. c. Monitor and record the consumption rate of propane on a daily basis for S2.022 and S2.023, each, (in gallons). d. Monitor and record the consumption rate of natural gas on a daily basis for S2.022 and S2.023, each, (in cubic

feet). e. Conduct and record an observation of visible emissions (excluding water vapor) on the exhaust stacks of S2.022 and

S2.023, each, on a monthly basis while operating. The observer shall stand at a distance sufficient to provide a clear view of the emissions with the sun oriented to their back. If visible emissions are observed, the Permittee shall conduct and record a Method 9 visible emission test. Each Method 9 visible emission test shall be conducted by a certified visible emissions reader in accordance with 40 CFR Part 60, Appendix A.


Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in C.5. of this section. b. The calendar date and time when the fuel combusted in S2.022 or S2.023 is switched.




39

Section VI. Specific Operating Conditions (continued) D. Emission Unit S2.024

System 05 – Boilers #4 Autoclave Circuit Location UTM (Zone 11, NAD 83) m North m East

S2.024 Boiler #4, Foster Wheeler AG-5175C 4,536,023 554,865 1. NAC 445B.3405 (NAC 445B.316) Part 70 Program

Air Pollution Control Equipment a. Emissions from S2.024 shall be controlled by selective catalytic reduction (SCR). b. When in operation S2.024 will be controlled by the SCR, with the exception of the boiler and catalyst warm-up

period as defined in D.1.c. c. Boiler and catalyst warm-up period will be defined as the period of time during which the boiler is brought up to

steady-state temperature and pressure operating requirements. Boiler and catalyst warm-up will not exceed an 8-hour duration.

d. Descriptive Stack Parameters for S2.024 Stack Height: 60 feet Stack Diameter: 6.96 feet Stack Temperature: 403°F Exhaust Flow: 36,649 dry standard cubic feet per minute (dscfm)


Operating Parameters a. S2.024 may consume either propane or natural gas. Combustion of a blend of these fuels is prohibited. b. The maximum allowable fuel consumption rate for S2.024 shall not exceed 2,603.0 gallons of propane per any one-

hour period. c. The maximum allowable fuel consumption rate for S2.024 shall not exceed 233,490.0 cubic feet of natural gas per

any one-hour period. d. Hours


3. NAC 445B.3405 (NAC 445B.316) Part 70 Program Emission Limits The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from S2.024 the following pollutants in excess of the following specified limits: a. NAC 445B.305 Part 70 Program – The discharge of PM (particulate matter) to the atmosphere shall not exceed 2.38




d. NAC 445B.305 Part 70 Program – The discharge of SO2 (sulfur dioxide) to the atmosphere shall not exceed 0.45 pound per hour, nor more than 1.96 tons per year, based on 12-month rolling period.



g. NAC 445B.305 Part 70 Program – The discharge of VOCs (volatile organic compounds) to the atmosphere shall not exceed 3.10 pounds per hour, nor more than 13.58 tons per year, based on 12-month rolling period.




40

Section VI. Specific Operating Conditions (continued) D. Emission Unit S2.024 (continued)


Emission Limits (continued) The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from S2.024 the following pollutants in excess of the following specified limits: h. NAC 445B.2203 Federally Enforceable SIP Requirement – The maximum allowable discharge of PM10 (particulate

matter less than or equal to 10 microns in diameter) to the atmosphere from S2.024 shall not exceed 0.29 pound per MMBtu.

i. NAC 445B.22017 Federally Enforceable SIP Requirement – The opacity from S2.024 shall not equal or exceed 20%.

j. NAC 445B.22047 Federally Enforceable SIP Requirement – The maximum allowable discharge of Sulfur to the atmosphere from S2.024 shall not exceed 166.72 pounds per hour.


Performance Testing a. The Permittee, upon issuance of this operating permit, shall conduct renewal performance testing at least 90 days

prior to the expiration of this operating permit, but no earlier than 365 days from the date of expiration of this operating permit, and every 5 years thereafter, in accordance with the following: (1) All performance and opacity tests must comply with the advance notification, protocol review, operational


(2) Testing shall be conducted on the exhaust stack (post controls). (3) Method 5 in Appendix A of 40 CFR Part 60 shall be used to determine PM emissions. The sample volume for




(6) Method 7E in Appendix A of 40 CFR Part 60 shall be used to determine the nitrogen oxides concentration. Each test will be run for a minimum of one hour.

(7) Method 9 in Appendix A of 40 CFR Part 60 shall be used to determine opacity. Opacity observations shall be conducted concurrently with the applicable performance test. The minimum total time of observations shall be six minutes (24 consecutive observations recorded at 15 second intervals), unless otherwise specified by an applicable subpart.






41



Performance Testing (continued) b. When S2.024 are consuming propane, the Permittee shall conduct annual performance testing within 90 days of the

anniversary date of the previous initial performance testing or annual performance testing, and annually thereafter for as long as propane is combusted in S2.024, in accordance with the following: (1) All performance and opacity tests must comply with the advance notification, protocol review, operational


(2) Testing shall be conducted on the exhaust stack (post controls). (3) Method 6C in Appendix A of 40 CFR Part 60 shall be used to determine the sulfur dioxide concentration.

Each test will be run for a minimum of one hour. c. The performance testing required to determine the concentration of nitrogen oxides and carbon monoxide under

D.4.a. (6) and (8) of this section shall be conducted within 60 days of switching the fuel combusted in S2.024 as allowed under D.2.a.

d. The performance testing required to determine the concentration of sulfur dioxide under D.4.b. (3) of this section shall be conducted within 60 days of switching the fuel combusted in S2.024 to propane as allowed under D.2.a.


Monitoring The permittee, upon issuance of this operating permit, shall: a. Monitor and record the hours of operation while consuming propane for S2.024 on a daily basis. b. Monitor and record the hours of operation while consuming natural gas for S2.024 on a daily basis. c. Monitor and record the consumption rate of propane on a daily basis for S2.024 (in gallons). d. Monitor and record the consumption rate of natural gas on a daily basis for S2.024 (in cubic feet). e. Monitor and record the warm-up periods (date, time, and duration) for S.024. f. Monitor and record the warm-up periods (date, time, and duration) for the SCR. g. Conduct and record an observation of visible emissions (excluding water vapor) on the exhaust stacks of S2.024 on a

monthly basis while operating. The observer shall stand at a distance sufficient to provide a clear view of the emissions with the sun oriented to their back. If visible emissions are observed, the Permittee shall conduct and record a Method 9 visible emission test. Each Method 9 visible emission test shall be conducted by a certified visible emissions reader in accordance with 40 CFR Part 60, Appendix A.


Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in D.5. of this section. b. The calendar date and time when the fuel combusted in S2.024 is switched.




42


7. 40 CFR Part 64 – Compliance Assurance Monitoring (CAM) (40 CFR 64.1, et.seq.)

a. Upon issuance of this operating permit, Permittee shall conduct monitoring, recordkeeping, and reporting for the SCR as listed in Table D-1 below:

Table D-1:

Part 64 CAM Monitoring for SCR CAM Performance

Indicator===> Catalyst Bed Outlet

Temperature Ammonia Injection Rate Catalyst Activity

Measurement Approach Conduct and record a one-hour average reading of the SCR catalyst bed outlet temperature with a temperature probe, once during each day of operation.

Conduct and record a one-hour average reading of the SCR ammonia injection rate with an ammonia flow monitor, once during each day of operation.

Conduct and record a catalyst activity test on a representative sample of the catalyst every three years.

Indicator Range (Excluding boiler and catalyst warm-up as defined in D.1.c)

An excursion is defined as a temperature reading of less than 500°F and greater than 770°F. Excursions trigger an inspection, corrective action, and a reporting requirement.

An excursion is defined as an ammonia flow reading of less than 4.1 pounds of ammonia per hour. Excursions trigger an inspection, corrective actions, and a reporting requirement.

Not applicable.

Measurement Locations The thermocouple is located at the catalyst bed outlet.

The ammonia flow monitor is located in the ammonia injection line.

A representative sample of catalyst taken from reactor housing.

Verification of Operational Status

Annually Annually Not applicable. The catalyst activity tests show operational status

Quality Assurance/Quality Control

The accuracy of the thermocouple is verified by a second thermocouple which is calibrated every 12 months.

The accuracy of the meter is verified by regularly scheduled preventative maintenance checks.

The catalyst testing is conducted by an independent laboratory.

Monitoring Frequency A one-hour average reading of the catalyst bed outlet temperature is conducted and recorded daily.

A one-hour average reading of the ammonia injection rate is conducted and recorded daily.

Every three years.

Data Collection Procedures

The temperature is automatically recorded daily.

The injection rate is automatically recorded daily.

The results of the testing are maintained on site.

Averaging Periods One-hour average. One-hour average. Not applicable.

Operation of Approved Monitoring

Permittee shall comply with the applicable provisions of 40 CFR 64.7.

Reporting Permittee shall comply with the applicable General Reporting Requirements set forth in 40 CFR 64.9(a).

Recordkeeping Permittee shall comply with the applicable General Recordkeeping Requirements set forth in 40 CFR 64.9(b).




43

Section VI. Specific Operating Conditions (continued) E. Emission Units S2.031.1 and PF1.021.2

System 06 – Autoclave Circuit – Lime Silo #5, 28 tons Location UTM (Zone 11, NAD 83) m North m East

S2.031.1 Lime Silo Loading (silo discharges to fully enclosed screw conveyor formerly PF1.021.1) 4,535,995 554,777

PF1.021.2 Screw Conveyor Transfer 4,535,995 554,772

1. NAC 445B.3405 (NAC 445B.316) Part 70 Program Air Pollution Control Equipment a. Emissions from S2.031.1 shall be controlled by a vent filter. b. PF1.021.2 shall be controlled by an enclosure. c. Descriptive Stack Parameters for S2.031.1

Stack Height: 44.0 feet Stack Diameter: 0.83 feet Stack Temperature: ambient Exhaust Flow: 700 dry standard cubic feet per minute (dscfm)

2. NAC 445B.3405 (NAC 445B.316) Part 70 Program Operating Parameters a. The maximum allowable throughput rate for S2.031.1 shall not exceed 60.0 tons of lime or trona per any one-hour

period, nor more than 2,000.0 tons per year, based on a 12-month rolling period. b. The maximum allowable throughput rate for PF1.021.2 shall not exceed 5.0 tons of lime or trona per any one-hour

period, nor more than 2,000.0 tons per year, based on a 12-month rolling period. c. Hours

(1) S2.031.1 and PF1.021.2, each, may operate a total of 24 hours per day.


from S2.031.1 the following pollutants in excess of the following specified limits: (1) NAC 445B.305 Part 70 Program – The discharge of PM (particulate matter) to the atmosphere shall not




(4) NAC 445B.22033 Federally Enforceable SIP Requirement – The maximum allowable discharge of PM10 (particulate matter less than or equal to 10 microns in diameter) to the atmosphere from S2.031.1 shall not exceed 46.29 pounds per hour.

(5) NAC 445B.22017 Federally Enforceable SIP Requirement – The opacity from S2.031.1 shall not equal or exceed 20%.




44

Section VI. Specific Operating Conditions (continued) E. Emission Units S2.031.1 and PF1.021.2 (continued)



from PF1.021.2 the following pollutants in excess of the following specified limits: (1) NAC 445B.305 Part 70 Program – The discharge of PM (particulate matter) to the atmosphere shall not




(4) NAC 445B.22033 Federally Enforceable SIP Requirement – The maximum allowable discharge of PM10 (particulate matter less than or equal to 10 microns in diameter) to the atmosphere from PF1.021.2 shall not exceed 12.05 pounds per hour.

(5) NAC 445B.22017 Federally Enforceable SIP Requirement – The opacity from PF1.021.2 shall not equal or exceed 20%.


Monitoring The permittee, upon issuance of this operating permit, shall: a. Monitor and record the throughput for S2.031.1 and PF1.021.2, each, on a daily basis. b. Monitor and record the hours of operation for S2.031.1 and PF1.021.2, each, on a daily basis. c. Record the average hourly throughput rate (in tons per hour) for S2.031.1 and PF1.021.2, each, using the daily

throughput and the daily hours of operation. d. Record the throughput rate of lime or trona for S2.031.1 and PF1.021.2, each, on a cumulative monthly basis, for



f. Inspect the vent filter installed on S2.031.1 in accordance with the manufacturer’s operation and maintenance manual and record the results (e.g. the condition of the filter fabric), and any corrective actions taken. If no operation and maintenance manual is available, inspections shall be conducted monthly.

g. Conduct and record an observation of visible emissions (excluding water vapor) on PF1.021.2 on a monthly basis while operating. The observer shall stand at a distance sufficient to provide a clear view of the emissions with the sun oriented to their back. If visible emissions are observed, the Permittee shall conduct and record a Method 9 visible emission test. Each Method 9 visible emission test shall be conducted by a certified visible emissions reader in accordance with 40 CFR Part 60, Appendix A.

h. Inspect the enclosure installed on PF1.021.2 on a monthly basis to confirm that the enclosure is in place and functioning properly. If the enclosure is in disrepair, the Permittee shall initiate corrective action within 24 hours and complete corrective action as expediently as practical to ensure that the enclosure is functioning properly. The Permittee must record each inspection of the enclosures, including the date of each inspection and any corrective actions taken.


Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in E.4. of this section.




45

Section VI. Specific Operating Conditions (continued) F. Emission Units S2.002, PF1.016, and PF1.016.1

System 07 – Mill #2 120 ton Lime Silo Location UTM (Zone 11, NAD 83) m North m East

S2.002 Lime Silo Loading 4,536,146 554,655 PF1.016 Lime Silo Discharge to Screw Conveyor 4,536,155 554,652 PF1.016.1 Screw Conveyor Transfer 4,536,152 554,654


Air Pollution Control Equipment a. Emissions from S2.002 shall be controlled by a vent filter. b. Emissions from PF1.016 and PF1.016.1 shall be controlled by an enclosure. c. Descriptive Stack Parameters for S2.002



more than 90,000.0 tons per year, based on a 12-month rolling period. b. The maximum allowable throughput rate for PF1.016 and PF1.016.1, each, shall not exceed 20.0 tons of lime per

any one-hour period, nor more than 90,000.0 tons per year, based on a 12-month rolling period. c. Hours

(1) S2.002, PF1.016, and PF1.016.1, each, may operate a total of 24 hours per day.











46

Section VI. Specific Operating Conditions (continued) F. Emission Units S2.002, PF1.016 and PF1.016.1 (continued)



from PF1.016 and PF1.016.1, each, the following pollutants in excess of the following specified limits: (1) NAC 445B.305 Part 70 Program – The discharge of PM (particulate matter) to the atmosphere shall not




(4) NAC 445B.22033 Federally Enforceable SIP Requirement – The maximum allowable discharge of PM10 (particulate matter less than or equal to 10 microns in diameter) to the atmosphere from PF1.016 and PF1.016.1, each, shall not exceed 30.51 pounds per hour.

(5) NAC 445B.22017 Federally Enforceable SIP Requirement – The opacity from PF1.016 and PF1.016.1, each, shall not equal or exceed 20%.


Monitoring The permittee, upon issuance of this operating permit, shall: a. Monitor and record the throughput for S2.002, PF1.016, and PF1.016.1, each, on a daily basis. b. Monitor and record the hours of operation for S2.002, PF1.016, and PF1.016.1, each, on a daily basis. c. Record the average hourly throughput rate (in tons per hour) for S2.002, PF1.016, and PF1.016.1, each, using the

daily throughput and the daily hours of operation. d. Record the throughput rate of lime for S2.002, PF1.016, and PF1.016.1, each, on a cumulative monthly basis, for




g. Conduct and record an observation of visible emissions (excluding water vapor) on PF1.016 and PF1.016.1 on a monthly basis while operating. The observer shall stand at a distance sufficient to provide a clear view of the emissions with the sun oriented to their back. If visible emissions are observed, the Permittee shall conduct and record a Method 9 visible emission test. Each Method 9 visible emission test shall be conducted by a certified visible emissions reader in accordance with 40 CFR Part 60, Appendix A.

h. Inspect the enclosure installed on PF1.016 and PF1.016.1 on a monthly basis to confirm that the enclosure is in place and functioning properly. If the enclosure is in disrepair, the Permittee shall initiate corrective action within 24 hours and complete corrective action as expediently as practical to ensure that the enclosure is functioning properly. The Permittee must record each inspection of the enclosures, including the date of each inspection and any corrective actions taken.


Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in F.4. of this section.




47

Section VI. Specific Operating Conditions (continued) G. Emission Units S2.081 and PF1.030

System 08 – 200 ton Magnesium Oxide Silo Boulder Valley Water Treatment Plant Location UTM (Zone 11, NAD 83) m North m East

S2.081 Magnesium Oxide Silo Loading (silo discharges to fully enclosed screw conveyor formerly PF1.029) 4,533,304 547,257

PF1.030 Screw Conveyor Transfer 4,533,303 547,262

1. NAC 445B.3405 (NAC 445B.316) Part 70 Program Air Pollution Control Equipment a. Emissions from S2.081 shall be controlled by a vent filter. b. PF1.030 shall be controlled by an enclosure. c. Descriptive Stack Parameters for S2.081


2. NAC 445B.3405 (NAC 445B.316) Part 70 Program Operating Parameters a. The maximum allowable throughput rate for S2.081 shall not exceed 60.0 tons of magnesium oxide per any one-

hour period, nor more than 20,000.0 tons per year, based on a 12-month rolling period. b. The maximum allowable throughput rate for PF1.030 shall not exceed 3.0 tons of magnesium oxide per any one-

hour period, nor more than 20,000.0 tons per year, based on a 12-month rolling period. c. Hours

(1) S2.081 and PF1.030, each, may operate a total of 24 hours per day.











48

Section VI. Specific Operating Conditions (continued) G. Emission Units S2.081 and PF1.030 (continued)



from PF1.030 the following pollutants in excess of the following specified limits: (1) NAC 445B.305 Part 70 Program – The discharge of PM (particulate matter) to the atmosphere shall not




(4) NAC 445B.22033 Federally Enforceable SIP Requirement – The maximum allowable discharge of PM10 (particulate matter less than or equal to 10 microns in diameter) to the atmosphere from PF1.030 shall not exceed 8.56 pounds per hour.

(5) NAC 445B.22017 Federally Enforceable SIP Requirement – The opacity from PF1.030 shall not equal or exceed 20%.


Monitoring The permittee, upon issuance of this operating permit, shall: a. Monitor and record the throughput for S2.081 and PF1.030, each, on a daily basis. b. Monitor and record the hours of operation for S2.081 and PF1.030, each, on a daily basis. c. Record the average hourly throughput rate (in tons per hour) for S2.081 and PF1.030, each, using the daily

throughput and the daily hours of operation. d. Record the throughput rate of magnesium oxide for S2.081 and PF1.030, each, on a cumulative monthly basis, for




g. Conduct and record an observation of visible emissions (excluding water vapor) on PF1.030 on a monthly basis while operating. The observer shall stand at a distance sufficient to provide a clear view of the emissions with the sun oriented to their back. If visible emissions are observed, the Permittee shall conduct and record a Method 9 visible emission test. Each Method 9 visible emission test shall be conducted by a certified visible emissions reader in accordance with 40 CFR Part 60, Appendix A.

h. Inspect the enclosure installed on PF1.030 on a monthly basis to confirm that the enclosure is in place and functioning properly. If the enclosure is in disrepair, the Permittee shall initiate corrective action within 24 hours and complete corrective action as expediently as practical to ensure that the enclosure is functioning properly. The Permittee must record each inspection of the enclosures, including the date of each inspection and any corrective actions taken.


Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in G.4. of this section.




49




50

Section VI. Specific Operating Conditions (continued) H. Emission Units S2.201.2 through S2.201.5

System 09 – Roaster Crushing Circuit Location UTM (Zone 11, NAD 83) m North m East

S2.201.2 Gyratory Crusher (including in from dump hopper, formerly S2.201.1)

4,538,654 552,537 S2.201.3 Apron Feeder S2.201.4 Transfer Conveyor Transfer to Feed Conveyor S2.201.5 Baghouse Hopper Transfer to Feed Conveyor


Air Pollution Control Equipment a. Emissions from S2.201.2 through S2.201.5 shall be controlled by a baghouse (DC-201). b. Descriptive Stack Parameters for DC-201


2. NAC 445B.3405 (NAC 445B.316) Part 70 Program Operating Parameters a. The maximum allowable throughput rate for S2.201.2 through S2.201.5, each, shall not exceed 1,232.0 tons of ore

per any one-hour period, nor more than 8,212,500.0 tons per year, based on a 12-month rolling period. b. Hours

(1) S2.201.2 through S2.201.5, each, may operate a total of 24 hours per day.

3. NAC 445B.3405 (NAC 445B.316) Part 70 Program Emission Limits The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from the stack of DC-201 the following pollutants in excess of the following specified limits: a. NAC 445B.305 Part 70 Program – The discharge of PM (particulate matter) to the atmosphere shall not exceed 2.91




d. NAC 445B.22033 Federally Enforceable SIP Requirement – The maximum allowable discharge of PM10 (particulate matter less than or equal to 10 microns in diameter) to the atmosphere from S2.201.2 through S2.201.5, each, shall not exceed 80.32 pounds per hour.

e. NAC 445B.22017 Federally Enforceable SIP Requirement – The opacity from the stack of DC-201 shall not equal or exceed 20%.




51

Section VI. Specific Operating Conditions (continued) H. Emission Units S2.201.2 through S2.201.5 (continued)

4. NAC 445B.3405 (NAC 445B.316) Part 70 Program Performance Testing The Permittee, upon issuance of this operating permit, shall conduct renewal performance testing at least 90 days prior to the expiration of this operating permit, but no earlier than 365 days from the date of expiration of this operating permit, and every 5 years thereafter, in accordance with the following: a. All performance and opacity tests must comply with the advance notification, protocol review, operational


b. Testing shall be conducted on the exhaust stack (post controls). c. Method 5 in Appendix A of 40 CFR Part 60 shall be used to determine PM emissions. The sample volume for each

test run shall be at least 1.7 dscm (60 dscf). Test runs must be conducted for up to two hours in an effort to collect this minimum sample.

d. Method 201A in Appendix M of 40 CFR Part 51 shall be used to determine PM10 and PM2.5 emissions. The sample time and sample volume collected for each test run shall be sufficient to collect enough mass to weigh accurately.

e. The Method 201A test required in this section may be replaced by a Method 5 in Appendix A of 40 CFR Part 60 test. All particulate captured in the Method 5 test performed under this provision shall be considered PM2.5 for determination of compliance.

f. Method 9 in Appendix A of 40 CFR Part 60 shall be used to determine opacity. Opacity observations shall be conducted concurrently with the applicable performance test. The minimum total time of observations shall be six minutes (24 consecutive observations recorded at 15 second intervals), unless otherwise specified by an applicable subpart.


Monitoring The permittee, upon issuance of this operating permit, shall: a. Monitor and record the throughput for S2.201.2 through S2.201.5, each, on a daily basis. b. Monitor and record the hours of operation for S2.201.2 through S2.201.5, each, on a daily basis. c. Record the average hourly throughput rate (in tons per hour) for S2.201.2 through S2.201.5, each, using the daily

throughput and the daily hours of operation. d. Record the throughput rate of ore for S2.201.2 through S2.201.5, each, on a cumulative monthly basis, for each 12-

month rolling period. e. Conduct and record an observation of visible emissions (excluding water vapor) on the baghouse controlling

S2.201.2 through S2.201.5 on a monthly basis while operating. The observer shall stand at a distance sufficient to provide a clear view of the emissions with the sun oriented to their back. If visible emissions are observed, the Permittee shall conduct and record a Method 9 visible emission test. Each Method 9 visible emission test must be conducted by a certified visible emissions reader in accordance with 40 CFR Part 60, Appendix A.

f. Inspect the baghouse installed on S2.201.2 through S2.201.5 in accordance with the manufacturer’s operation and maintenance manual and record the results (e.g. the condition of the filter fabric), and any corrective actions taken. If no operation and maintenance manual is available, inspections shall be conducted monthly.


Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in H.5. of this section. b. Maintain records of the occurrence and duration of any startup, shutdown, or malfunction in the operation of an

affected facility; any malfunction of the air pollution control equipment; or any periods during which a continuous monitoring system or monitoring device is inoperative. (40 CFR 60.7(b))




52


7. Federal Requirements (NAC 445B.3405(1)) (Federally Enforceable SIP Requirement) New Source Performance Standards (NSPS) – 40 CFR Part 60 Subpart LL – Standards of Performance for Metallic

Processing Plants (40 CFR Part 60.380) a. On and after the sixtieth day after achieving the maximum production rate at which DC-201 will be operated, but not

later than 180 days after initial startup, the Permittee shall not discharge or cause the discharge into the atmosphere, the following pollutants in excess of the following specified limits: (1) Particulate matter in excess of 0.05 grams per dry standard cubic meter (7.98 lb/hr). (40 CFR 60.382(a)(1)) (2) Emissions from DC-201 will not exceed 7 percent opacity. (40 CFR 60.382(a)(2)) (3) The opacity standard set forth in this part shall apply at all times except during period of startup, shutdown,

and malfunction. (40 CFR 60.11(c)) b. At all times, including periods of startup, shutdown, and malfunction, owner and operators shall, to the extent

practicable, maintain and operate DC-201, including associated air pollution control equipment in a manner consistent with good air pollution control practice for minimizing emissions. (40 CFR 60.11(d))




53


8. 40 CFR Part 64 – Compliance Assurance Monitoring (CAM) (40 CFR 64.1, et.seq.) a. Upon issuance of this operating permit, Permittee shall conduct monitoring, recordkeeping, and reporting for the

baghouse (DC-201) as listed in Table H-1 below:

Table H-1: Part 64 CAM Monitoring for DC-201

CAM Performance Indicator===> Visible Emissions Pressure Drop

Measurement Approach Conduct and record an assessment of the visible emissions (excluding water vapor) from the exhaust stack of DC-201 on a weekly basis. If the visible emission survey detects any visible emissions, the Permitee will conduct and record a Method 9 (or an alternative EPA reference method approved by the director) visible emissions test.

Conduct and record a one-hour average reading of the baghouse pressure drop across the inlet and outlet of DC-201 once during each day of operation.

Indicator Range An excursion is defined as opacity greater than 7 percent. Excursions trigger an inspection, corrective action, and a reporting requirement.

An excursion is defined as a pressure drop reading of less than 0.5 inches of water or greater than 11.0 inches of water. Excursions trigger an inspection, corrective action, and a reporting requirement.

Measurement Locations Measurements are being made at the emission point (baghouse exhaust).

Pressure taps are located at the baghouse inlet and outlet. The differential pressure (DP) monitor has a minimum accuracy of 0.04 inch of water.


Not applicable. No device is used to measure visible emissions.

Annually


The observer will be Method 9 certified. The DP monitor is a Rosemont brand with a five-year no drift guarantee. The pressure taps are checked for plugging anytime there are continuous readings below the lower end of the indicator range.

Monitoring Frequency A visible emission survey is conducted and recorded weekly.

A one-hour average reading of the baghouse pressure drop is conducted and recorded daily.


The visible emission survey is recorded by the observer.

The pressure drop is automatically recorded daily.

Averaging Periods Not applicable for the survey. Six-minute average for the Method 9 observation.

One-hour average.








54

Section VI. Specific Operating Conditions (continued) I. Emission Unit PF1.201

System 10 – Roaster Dump Hopper Location UTM (Zone 11, NAD 83) m North m East

PF1.201 Primary Crusher Dump Hopper Loading 4,538,654 552,537

1. NAC 445B.3405 (NAC 445B.316) Part 70 Program Air Pollution Control Equipment Emissions from PF1.201 shall be controlled by an enclosure.


Operating Parameters a. The maximum allowable throughput rate for PF1.201 shall not exceed 1,232.0 tons of ore per any one-hour period,

nor more than 8,212,500.0 tons per year, based on a 12-month rolling period. b. Hours

(1) PF1.201 may operate a total of 24 hours per day.

3. NAC 445B.3405 (NAC 445B.316) Part 70 Program Emission Limits The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from PF1.201 the following pollutants in excess of the following specified limits: a. NAC 445B.305 Part 70 Program – The discharge of PM (particulate matter) to the atmosphere shall not exceed 1.85


diameter) to the atmosphere shall not exceed 0.68 pound per hour, nor more than 2.26 tons per year, based on 12-month rolling period.


d. NAC 445B.22033 Federally Enforceable SIP Requirement – The maximum allowable discharge of PM10 (particulate matter less than or equal to 10 microns in diameter) to the atmosphere from PF1.201 shall not exceed 80.32 pounds per hour.

e. NAC 445B.22017 Federally Enforceable SIP Requirement – The opacity from PF1.201 shall not equal or exceed 20%.

4. NAC 445B.3405 (NAC 445B.316) Part 70 Program Monitoring The permittee, upon issuance of this operating permit, shall: a. Monitor and record the throughput for PF1.201 on a daily basis. b. Monitor and record the hours of operation for PF1.201 on a daily basis. c. Record the average hourly throughput rate (in tons per hour) for PF1.201 using the daily throughput and the daily

hours of operation. d. Record the throughput rate of ore for PF1.201 on a cumulative monthly basis, for each 12- month rolling period. e. Conduct and record an observation of visible emissions (excluding water vapor) on PF1.201 on a monthly basis

while operating. The observer shall stand at a distance sufficient to provide a clear view of the emissions with the sun oriented to their back. If visible emissions are observed, the Permittee shall conduct and record a Method 9 visible emission test. Each Method 9 visible emission test shall be conducted by a certified visible emissions reader in accordance with 40 CFR Part 60, Appendix A.




55

Section VI. Specific Operating Conditions (continued) I. Emission Unit PF1.201 (continued)


Monitoring (continued) The permittee, upon issuance of this operating permit, shall: f. Inspect the enclosure installed on PF1.201 on a monthly basis to confirm that the enclosure is in place and

functioning properly. If the enclosure is in disrepair, the Permittee shall initiate corrective action within 24 hours and complete corrective action as expediently as practical to ensure that the enclosure is functioning properly. The Permittee must record each inspection of the enclosures, including the date of each inspection and any corrective actions taken.


Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in I.4. of this section. b. Maintain records of the occurrence and duration of any startup, shutdown, or malfunction in the operation of an



Processing Plants (40 CFR Part 60.380) a. On and after the sixtieth day after achieving the maximum production rate at which PF1.201 will be operated, but

not later than 180 days after initial startup, the Permittee shall not discharge or cause the discharge into the atmosphere, the following pollutants in excess of the following specified limits: (1) Process fugitive emissions from PF1.201 will not exceed 10 percent opacity. (40 CFR Part 60.382(b)) (2) The opacity standard set forth in this part shall apply at all times except during period of startup, shutdown,

and malfunction. (40 CFR 60.11(c)) b. At all times, including periods of startup, shutdown, and malfunction, owners and operators shall, to the extent

practicable, maintain and operate any affected facility including associated air pollution control equipment in a manner consistent with good air pollution control practice for minimizing emissions. Determination of whether acceptable operating and maintenance procedures are being used will be based on information available to the Administrator which may include, but is not limited to, monitoring results, opacity observations, review of operating and maintenance procedures, and inspection of the source (40 CFR 60.11(d)).




56

Section VI. Specific Operating Conditions (continued) J. Emission Units S2.202.1 through S2.202.6

System 11 – Roaster Secondary Crushing and Conveyance Location UTM (Zone 11, NAD 83) m North m East

S2.202.1 Feed Conveyor Transfer to Screen

4,538,580 552,500

S2.202.2 Screen S2.202.3 Screen Transfer to Stacking Conveyor S2.202.4 Cone Crusher S2.202.5 Cone Crusher Transfer to Stacking Conveyor S2.202.6 Baghouse Hopper Transfer to Stacking Conveyor





per any one-hour period, nor more than 8,212,500.0 tons per year, based on a 12-month rolling period. b. Hours











57

Section VI. Specific Operating Conditions (continued) J. Emission Units S2.202.1 through S2.202.6 (continued)


Performance Testing The Permittee, upon issuance of this operating permit, shall conduct renewal performance testing at least 90 days prior to the expiration of this operating permit, but no earlier than 365 days from the date of expiration of this operating permit, and every 5 years thereafter, in accordance with the following: a. The Permittee must comply with the advance notification, protocol review, operational conditions, reporting, and

other requirements of Section I.S. Testing and Sampling (NAC 445B.252) and Section I.T. Testing and Sampling (SIP NAC 445B.252) of this operating permit. Material sampling must be conducted in accordance with protocols approved by the Director. All performance test results shall be based on the arithmetic average of three valid runs (NAC 445B.252(5)).













Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in J.5. of this section. b. Maintain records of the occurrence and duration of any startup, shutdown, or malfunction in the operation of an





58










59



a. Upon issuance of this operating permit, Permittee shall conduct monitoring, recordkeeping, and reporting for the baghouse (DC-202) as listed in Table J-1 below:

Table J-1:

Part 64 CAM Monitoring for DC-202 CAM Performance

Indicator===> Visible Emissions Pressure Drop




An excursion is defined as a pressure drop reading of less than 1.0 inch of water or greater than 7.0 inches of water. Excursions trigger an inspection, corrective action, and a reporting requirement.





Annually









One-hour average.








60

Section VI. Specific Operating Conditions (continued) K. Emission Unit PF1.202

System 12 – Roaster Crushed Ore Conveyance Location UTM (Zone 11, NAD 83) m North m East

PF1.202 Coarse Ore Stacking Conveyor 4,538,477 552,453



Operating Parameters a. The maximum allowable throughput rate for PF1.202 shall not exceed 1,232.0 tons of ore per any one-hour period,

nor more than 8,212,500.0 tons per year, based on a 12-month rolling period. b. Hours









hours of operation. d. Record the throughput rate of ore for PF1.202 on a cumulative monthly basis, for each 12- month rolling period. e. Conduct and record an observation of visible emissions (excluding water vapor) on PF1.202 on a monthly basis





61

Section VI. Specific Operating Conditions (continued) K. Emission Unit PF1.202 (continued)





Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in K.4. of this section.




62

Section VI. Specific Operating Conditions (continued) L. Emission Units S2.203.1 through S2.203.6

System 13 – Ore/Lime Mill 1 and 2 Feed Process Location UTM (Zone 11, NAD 83) m North m East

S2.203.1 Mill #1 Apron Feed System Transfer

4,538,480 552,359

S2.203.2 Mill #2 Apron Feed System Transfer S2.203.3 Emergency Mill #1 Apron Feed System Transfer S2.203.4 Emergency Mill #2 Apron Feed System Transfer S2.203.5 Lime Transfer to Mill #1 or #2 Belt Conveyor S2.203.6 Baghouse Hopper Transfer to Mill #2 Feed Conveyor





per any one-hour period. b. Hours











63

Section VI. Specific Operating Conditions (continued) L. Emission Units S2.203.1 through S2.203.6 (continued)
















Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in L.5. of this section. b. Maintain records of the occurrence and duration of any startup, shutdown, or malfunction in the operation of an





64










65



baghouse (DC-203) as listed in Table L-1 below:

Table L-1: Part 64 CAM Monitoring for DC-203










Annually









One-hour average.








66

Section VI. Specific Operating Conditions (continued) M. Emission Units PF1.203.1 and PF1.203.2

System 14 – Emergency Reclaim Hoppers (Loading) Process Location UTM (Zone 11, NAD 83) m North m East

PF1.203.1 Mill #1 Hopper 4,538,477 552,453 PF1.203.2 Mill #2 Hopper

1. NAC 445B.3405 (NAC 445B.316) Part 70 Program Air Pollution Control Equipment Emissions from PF1.203.1 and PF1.203.2 shall be uncontrolled.


Operating Parameters a. The maximum allowable throughput rate for PF1.203.1 and PF1.203.2, combined, shall not exceed 856.0 tons of

ore per any one-hour period, nor more than 1,000,000.0 tons per year, based on a 12-month rolling period. b. Hours

(1) PF1.203.1 and PF1.203.2, each, may operate a total of 24 hours per day.

3. NAC 445B.3405 (NAC 445B.316) Part 70 Program Emission Limits The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from PF1.203.1 and PF1.203.2, combined, the following pollutants in excess of the following specified limits: a. NAC 445B.305 Part 70 Program – The discharge of PM (particulate matter) to the atmosphere shall not exceed 2.57




d. NAC 445B.22033 Federally Enforceable SIP Requirement – The maximum allowable discharge of PM10 (particulate matter less than or equal to 10 microns in diameter) to the atmosphere from PF1.203.1 and PF1.203.2, combined, shall not exceed 75.59 pounds per hour.

e. NAC 445B.22017 Federally Enforceable SIP Requirement – The opacity from PF1.203.1 and PF1.203.2, each, shall not equal or exceed 20%.

4. NAC 445B.3405 (NAC 445B.316) Part 70 Program Monitoring The permittee, upon issuance of this operating permit, shall: a. Monitor and record the throughput for PF1.203.1 and PF1.203.2, combined, on a daily basis. b. Monitor and record the hours of operation for PF1.203.1 and PF1.203.2, combined, on a daily basis. c. Record the average hourly throughput rate (in tons per hour) for PF1.203.1 and PF1.203.2, combined, using the

daily throughput and the daily hours of operation. d. Record the throughput rate of ore for PF1.203.1 and PF1.203.2, combined, on a cumulative monthly basis, for each

12- month rolling period.




67

Section VI. Specific Operating Conditions (continued) M. Emission Units PF1.203.1 and PF1.203.2 (continued)


Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in M.4. of this section. b. Maintain records of the occurrence and duration of any startup, shutdown, or malfunction in the operation of an



Processing Plants (40 CFR Part 60.380) a. On and after the sixtieth day after achieving the maximum production rate at which PF1.203.1 and PF1.203.2, each,

will be operated, but not later than 180 days after initial startup, the Permittee shall not discharge or cause the discharge into the atmosphere, the following pollutants in excess of the following specified limits: (1) Process fugitive emissions from PF1.203.1 and PF1.203.2, each, will not exceed 10 percent opacity. (40

CFR Part 60.382(b)) (2) The opacity standard set forth in this part shall apply at all times except during period of startup, shutdown,






68

Section VI. Specific Operating Conditions (continued) N. Emission Units S2.204 and S2.205.01 through S2.205.12

System 15 – Mill #1 Pre-heater and Mill #1 Dry Grinding Process Location UTM (Zone 11, NAD 83) m North m East

S2.204 Mill #1 Air Pre-heater

4,538,507 552,190

S2.205.01 Mill #1 Feed Conveyor S2.205.02 Mill #1 Double Rotator Grinding Mill S2.205.03 Mill #1 Grinding Mill to Bucket Elevator Air Slide System S2.205.04 Mill #1 Bucket Elevator S2.205.05 Mill #1 Bucket Elevator to Dynamic Classifier Air Slide System S2.205.06 Mill #1 Dynamic Classifier S2.205.07 Mill #1 Dynamic Classifier to Grinding Mill Air Slide System S2.205.08 Mill #1 Product Recovery Baghouse to Roaster #1 Air Slide System S2.205.09 Mill #1 Pick Up Point Baghouse to Roaster #1 Air Slide System S2.205.10 Mill #1 Static Classifier S2.205.11 Roaster #1 Silo S2.205.12 Ball Chip Removal System


Air Pollution Control Equipment a. S2.204 shall be equipped with a low NOx burner. b. Emissions from S2.204 and S2.205.01 through S2.205.12 shall be controlled by baghouses DC-204.1, DC-204.2,

and DC-205 operating in parallel. c. Exhaust from DC-204.1, DC-204.2, and DC-205 vent to a common stack. d. Descriptive Stack Parameters for System 15


2. NAC 445B.3405 (NAC 445B.316) Part 70 Program Operating Parameters a. S2.204 may consume either propane or natural gas. Combustion of a blend of these fuels is prohibited. b. The maximum allowable fuel consumption rate for S2.204 shall not exceed 1,530.0 gallons of propane per any one-

hour period, nor more than 7,563,279.0 gallons per year, based on a 12-month rolling period. c. The maximum allowable fuel consumption rate for S2.204 shall not exceed 137,255.0 cubic feet of natural gas per

any one-hour period, nor more than 678,470,588.0 cubic feet per year, based on a 12-month rolling period. d. The maximum allowable throughput rate for S2.205.01 through S2.205.12, each, shall not exceed 500.0 tons of ore

per any one-hour period, nor more than 3,376,250.0 tons per year, based on a 12-month rolling period. e. Hours

(1) S2.204 and S2.205.01 through S2.205.12, each, may operate a total of 24 hours per day.

3. NAC 445B.3405 (NAC 445B.316) Part 70 Program Emission Limits The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from System 15 the following pollutants in excess of the following specified limits: a. NAC 445B.305 Part 70 Program – The discharge of PM (particulate matter) to the atmosphere shall not exceed

12.60 pounds per hour, nor more than 55.17 tons per year, based on 12-month rolling period. b. NAC 445B.305 Part 70 Program – The discharge of PM10 (particulate matter less than or equal to 10 microns in





69

Section VI. Specific Operating Conditions (continued) N. Emission Units S2.204 and S2.205.01 through S2.205.12 (continued)


Emission Limits (continued) The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from System 15 the following pollutants in excess of the following specified limits: c. NAC 445B.305 Part 70 Program – The discharge of PM2.5 (particulate matter less than or equal to 2.5 microns in


d. NAC 445B.305 Part 70 Program – The discharge of SO2 (sulfur dioxide) to the atmosphere shall not exceed 4.28 pounds per hour, nor more than 16.88 tons per year, based on 12-month rolling period.




h. NAC 445B.2203 Federally Enforceable SIP Requirement – The maximum allowable discharge of PM10 (particulate matter less than or equal to 10 microns in diameter) to the atmosphere from S2.204 shall not exceed 0.33 pound per MMBtu.

i. NAC 445B.22033 Federally Enforceable SIP Requirement – The maximum allowable discharge of PM10 (particulate matter less than or equal to 10 microns in diameter) to the atmosphere from S2.205.01 through S2.205.12, each, shall not exceed 68.96 pounds per hour.

j. NAC 445B.22017 Federally Enforceable SIP Requirement – The opacity from System 15 shall not equal or exceed 20%.

k. NAC 445B.22047 Federally Enforceable SIP Requirement – The maximum allowable discharge of Sulfur to the atmosphere from System 15 shall not exceed 98.0 pounds per hour.


Performance Testing The Permittee, upon issuance of this operating permit, shall conduct renewal performance testing at least 90 days prior to the expiration of this operating permit, but no earlier than 365 days from the date of expiration of this operating permit, and every 5 years thereafter, in accordance with the following: a. All performance and opacity tests must comply with the advance notification, protocol review, operational

conditions, reporting, and other requirements of Section I.S. Testing and Sampling (NAC 445B.252) and Section I.T. Testing and Sampling (SIP NAC 445B.252) of this operating permit.. Material sampling must be conducted in accordance with protocols approved by the Director. All performance test results shall be based on the arithmetic average of three valid runs (NAC 445B.252(5)).



d. Method 201A and Method 202 in Appendix M of 40 CFR Part 51 shall be used to determine PM10 and PM2.5 emissions. The sample time and sample volume collected for each test run shall be sufficient to collect enough mass to weigh accurately.

e. The Method 201A and 202 test required in this section may be replaced by a Method 5 in Appendix A of 40 CFR Part 60 and Method 202 in Appendix M of 40 CFR Part 51 test. All particulate captured in the Method 5 and Method 202 test performed under this provision shall be considered PM2.5 for determination of compliance.

f. Method 6C in Appendix A of 40 CFR Part 60 shall be used to determine the sulfur dioxide concentration. Each test will be run for a minimum of one hour.




70



Performance Testing (continued) The Permittee, upon issuance of this operating permit, shall conduct renewal performance testing at least 90 days prior to the expiration of this operating permit, but no earlier than 365 days from the date of expiration of this operating permit, and every 5 years thereafter, in accordance with the following: g. Method 7E in Appendix A of 40 CFR Part 60 shall be used to determine the nitrogen oxides concentration. Each test

will be run for a minimum of one hour. h. Method 9 in Appendix A of 40 CFR Part 60 shall be used to determine opacity. Opacity observations shall be

conducted concurrently with the applicable performance test. The minimum total time of observations shall be six minutes (24 consecutive observations recorded at 15 second intervals), unless otherwise specified by an applicable subpart.

i. Method 10 in Appendix A of 40 CFR Part 60 shall be used to determine the carbon monoxide concentration. Each test will be run for a minimum of one hour.

j. The performance testing required to determine the concentration of nitrogen oxides and carbon monoxide under N.4.g and i of this section shall be conducted within 60 days of switching the fuel combusted in S2.204 as allowed under N.2.a.


Monitoring The permittee, upon issuance of this operating permit, shall: a. Monitor and record the hours of operation while consuming propane for S2.204 on a daily basis. b. Monitor and record the hours of operation while consuming natural gas for S2.204 on a daily basis. c. Monitor and record the consumption rate of propane on a daily basis for S2.204 (in gallons). d. Monitor and record the consumption rate of natural gas on a daily basis for S2.204 (in cubic feet). e. Record the consumption rate of propane (in gallons) for S2.204 on a cumulative monthly basis, for each 12-month

rolling period. f. Record the consumption rate of natural gas (in cubic feet) for S2.204 on a cumulative monthly basis, for each 12-

month rolling period. g. Monitor and record the throughput for S2.205.01 through S2.205.12, each, on a daily basis. h. Monitor and record the hours of operation for S2.205.01 through S2.205.12, each, on a daily basis. i. Record the average hourly throughput rate (in tons per hour) for S2.205.01 through S2.205.12, each, using the daily

throughput and the daily hours of operation. j. Record the throughput rate of ore for S2.205.01 through S2.205.12, each, on a cumulative monthly basis, for each

12- month rolling period. k. Conduct and record an observation of visible emissions (excluding water vapor) on the exhaust stack of System 15

on a monthly basis while operating. The observer shall stand at a distance sufficient to provide a clear view of the emissions with the sun oriented to their back. If visible emissions are observed, the Permittee shall conduct and record a Method 9 visible emission test. Each Method 9 visible emission test must be conducted by a certified visible emissions reader in accordance with 40 CFR Part 60, Appendix A.

l. Inspect the baghouses installed on System 15 in accordance with the manufacturer’s operation and maintenance manual and record the results (e.g. the condition of the filter fabric), and any corrective actions taken. If no operation and maintenance manual is available, inspections shall be conducted monthly.




71



Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in N.5. of this section. b. Maintain records of the occurrence and duration of any startup, shutdown, or malfunction in the operation of an


c. The calendar date and time when the fuel combusted in S2.204 is switched.


Processing Plants (40 CFR Part 60.380) a. On and after the sixtieth day after achieving the maximum production rate at which S2.205.01 through S2.205.12

will be operated, but not later than 180 days after initial startup, the Permittee shall not discharge or cause the discharge into the atmosphere, the following pollutants in excess of the following specified limits: (1) Particulate matter in excess of 0.05 grams per dry standard cubic meter (34.48 lb/hr). (40 CFR 60.382(a)(1)) (2) Emissions from S2.205.01 through S2.205.12 will not exceed 7 percent opacity. (40 CFR 60.382(a)(2)) (3) The opacity standard set forth in this part shall apply at all times except during period of startup, shutdown,


practicable, maintain and operate S2.205.1 through S2.205.12, including associated air pollution control equipment in a manner consistent with good air pollution control practice for minimizing emissions. (40 CFR 60.11(d))

8. Federal Requirements (NAC 445B.3405(1)) (Federally Enforceable SIP Requirement)

National Emission Standards for Hazardous Air Pollutants (NESHAPs) – 40 CFR Part 63 Subpart EEEEEEE – Gold Mine Ore Processing and Production Area Source Category The Permittee shall comply with all requirement specified in Section VII of this operating permit for ore pretreatment processes.




72

Section VI. Specific Operating Conditions (continued) N. S2.204 and S2.205.01 through S2.205.12 (continued)


a. Upon issuance of this operating permit, Permittee shall conduct monitoring, recordkeeping, and reporting for the baghouses (DC-204.1, DC-204.2, and DC-205) as listed in Table N-1 below:

Table N-1:

Part 64 CAM Monitoring for DC-204.1, DC-204.2, and DC-205 CAM Performance


Measurement Approach Conduct and record an assessment of the visible emissions (excluding water vapor) from the exhaust stack of System 15 on a daily basis. If the visible emission survey detects any visible emissions, the Permitee will conduct and record a Method 9 (or an alternative EPA reference method approved by the director) visible emissions test.

Conduct and record a one-hour average reading of the baghouse pressure drop across the inlet and outlet of DC-204.1, DC-204.2, and DC-205, each, once during each day of operation.


An excursion is defined as a pressure drop reading of less than 1.5 inches of water or greater than 11.0 inches of water for DC-204.1 and DC-204.2 and less than 1.5 inches of water or greater than 6.5 inches of water for DC-205. Excursions trigger an inspection, corrective action, and a reporting requirement.





Annually


The observer will be Method 9 certified. The DP monitors are a Rosemont brand with a 10-year no drift guarantee for DC-204.1 and DC-204.2 and a five-year no drift guarantee for DC-205. The pressure taps are checked for plugging anytime there are continuous readings below the lower end of the indicator range.

Monitoring Frequency A visible emission survey is conducted and recorded daily.

A one-hour average reading of each baghouse pressure drop is conducted and recorded daily.





One-hour average.








73

Section VI. Specific Operating Conditions (continued) O. Emission Units S2.206 and S2.207.1 through S2.207.12

System 16 – Mill #2 Pre-heater and Mill #2 Dry Grinding Process Location UTM (Zone 11, NAD 83) m North m East

S2.206 Mill #2 Air Pre-heater

4,538,442 552,190

S2.207.01 Mill #2 Feed Conveyor S2.207.02 Mill #2 Double Rotator Grinding Mill S2.207.03 Mill #2 Grinding Mill to Bucket Elevator Air Slide System S2.207.04 Mill #2 Bucket Elevator S2.207.05 Mill #2 Bucket Elevator to Dynamic Classifier Air Slide System S2.207.06 Mill #2 Dynamic Classifier S2.207.07 Mill #2 Dynamic Classifier to Grinding Mill Air Slide System S2.207.08 Mill #2 Product Recovery Baghouse to Roaster #2 Air Slide System S2.207.09 Mill #2 Pick Up Point Baghouse to Roaster #2 Air Slide System S2.207.10 Mill #2 Static Classifier S2.207.11 Roaster #2 Silo S2.207.12 Ball Chip Removal System


Air Pollution Control Equipment a. S2.206 shall be equipped with a low NOx burner. b. Emissions from S2.206 and S2.207.01 through S2.207.12 shall be controlled by baghouses DC-206.1, DC-206.2,

and DC-207 operating in parallel. c. Exhaust from DC-206.1, DC-206.2, and DC-207 vent to a common stack. d. Descriptive Stack Parameters for System 16


2. NAC 445B.3405 (NAC 445B.316) Part 70 Program Operating Parameters a. S2.206 may consume either propane or natural gas. Combustion of a blend of these fuels is prohibited. b. The maximum allowable fuel consumption rate for S2.206 shall not exceed 1,530.0 gallons of propane per any one-


any one-hour period, nor more than 678,470,588.0 cubic feet per year, based on a 12-month rolling period. d. The maximum allowable throughput rate for S2.207.01 through S2.207.12, each, shall not exceed 500.0 tons of ore

per any one-hour period, nor more than 3,376,250.0 tons per year, based on a 12-month rolling period. e. Hours

(1) S2.206 and S2.207.01 through S2.207.12, each, may operate a total of 24 hours per day.

3. NAC 445B.3405 (NAC 445B.316) Part 70 Program Emission Limits The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from System 16 the following pollutants in excess of the following specified limits: a. NAC 445B.305 Part 70 Program – The discharge of PM (particulate matter) to the atmosphere shall not exceed

12.60 pounds per hour, nor more than 55.17 tons per year, based on 12-month rolling period. b. NAC 445B.305 Part 70 Program – The discharge of PM10 (particulate matter less than or equal to 10 microns in





74

Section VI. Specific Operating Conditions (continued) O. Emission Units S2.206 and S2.207.01 through S2.207.12 (continued)


Emission Limits (continued) The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from System 16 the following pollutants in excess of the following specified limits: c. NAC 445B.305 Part 70 Program – The discharge of PM2.5 (particulate matter less than or equal to 2.5 microns in






h. NAC 445B.2203 Federally Enforceable SIP Requirement – The maximum allowable discharge of PM10 (particulate matter less than or equal to 10 microns in diameter) to the atmosphere from System 16 shall not exceed 0.33 pound per MMBtu.

i. NAC 445B.22033 Federally Enforceable SIP Requirement – The maximum allowable discharge of PM10 (particulate matter less than or equal to 10 microns in diameter) to the atmosphere from S2.207.01 through S2.207.12, each, shall not exceed 68.96 pounds per hour.

j. NAC 445B.22017 Federally Enforceable SIP Requirement – The opacity from System 16 shall not equal or exceed 20%.

k. NAC 445B.22047 Federally Enforceable SIP Requirement – The maximum allowable discharge of Sulfur to the atmosphere from System 16 shall not exceed 98.0 pounds per hour.












75



Performance Testing (continued) The Permittee, upon issuance of this operating permit, shall conduct renewal performance testing at least 90 days prior to the expiration of this operating permit, but no earlier than 365 days from the date of expiration of this operating permit, and every 5 years thereafter, in accordance with the following: g. Method 7E in Appendix A of 40 CFR Part 60 shall be used to determine the nitrogen oxides concentration. Each test

will be run for a minimum of one hour. h. Method 9 in Appendix A of 40 CFR Part 60 shall be used to determine opacity. Opacity observations shall be



j. The performance testing required to determine the concentration of nitrogen oxides and carbon monoxide under O.4.g and i of this section shall be conducted within 60 days of switching the fuel combusted in S2.206 as allowed under O.2.a.




month rolling period. g. Monitor and record the throughput for S2.207.01 through S2.207.12, each, on a daily basis. h. Monitor and record the hours of operation for S2.207.01 through S2.207.12, each, on a daily basis. i. Record the average hourly throughput rate (in tons per hour) for S2.207.01 through S2.207.12, each, using the daily

throughput and the daily hours of operation. j. Record the throughput rate of ore for S2.207.01 through S2.207.12, each, on a cumulative monthly basis, for each

12- month rolling period. k. Conduct and record an observation of visible emissions (excluding water vapor) on the exhaust stack of System 16

on a monthly basis while operating. The observer shall stand at a distance sufficient to provide a clear view of the emissions with the sun oriented to their back. If visible emissions are observed, the Permittee shall conduct and record a Method 9 visible emission test. Each Method 9 visible emission test must be conducted by a certified visible emissions reader in accordance with 40 CFR Part 60, Appendix A.

l. Inspect the baghouses installed on System 16 in accordance with the manufacturer’s operation and maintenance manual and record the results (e.g. the condition of the filter fabric), and any corrective actions taken. If no operation and maintenance manual is available, inspections shall be conducted monthly.




76



Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in O.5. of this section. b. Maintain records of the occurrence and duration of any startup, shutdown, or malfunction in the operation of an


c. The calendar date and time when the fuel combusted in S2.206 is switched. 7. Federal Requirements (NAC 445B.3405(1)) (Federally Enforceable SIP Requirement) New Source Performance Standards (NSPS) – 40 CFR Part 60 Subpart LL – Standards of Performance for Metallic


will be operated, but not later than 180 days after initial startup, the Permittee shall not discharge or cause the discharge into the atmosphere, the following pollutants in excess of the following specified limits: (1) Particulate matter in excess of 0.05 grams per dry standard cubic meter (34.48 lb/hr). (40 CFR 60.382(a)(1)) (2) Emissions from S2.207.01 through S2.207.12 will not exceed 7 percent opacity. (40 CFR 60.382(a)(2)) (3) The opacity standard set forth in this part shall apply at all times except during period of startup, shutdown,




National Emission Standards for Hazardous Air Pollutants (NESHAPs) – 40 CFR Part 63 Subpart EEEEEEE – Gold Mine Ore Processing and Production Area Source Category The Permittee shall comply with all requirement specified in Section VII of this operating permit for ore pretreatment processes.




77



a. Upon issuance of this operating permit, Permittee shall conduct monitoring, recordkeeping, and reporting for the baghouses (DC-206.1, DC-206.2, and DC-207) as listed in Table O-1 below:

Table O-1:

Part 64 CAM Monitoring for DC-206.1, DC-206.2, and DC-207 CAM Performance


Measurement Approach Conduct and record an assessment of the visible emissions (excluding water vapor) from the exhaust stack of System 16 on a daily basis. If the visible emission survey detects any visible emissions, the Permitee will conduct and record a Method 9 (or an alternative EPA reference method approved by the director) visible emissions test.

Conduct and record a one-hour average reading of the baghouse pressure drop across the inlet and outlet of DC-206.1, DC-206.2, and DC-207, each, once during each day of operation.


An excursion is defined as a pressure drop reading of less than 1.5 inches of water or greater than 11.0 inches of water for DC-206.1 and DC-206.2 and less than 1.5 inches of water or greater than 6.5 inches of water for DC-207. Excursions trigger an inspection, corrective action, and a reporting requirement.





Annually


The observer will be Method 9 certified. The DP monitors are a Rosemont brand with a 10-year no drift guarantee for DC-206.1 and DC-206.2 and a five-year no drift guarantee for DC-207. The pressure taps are checked for plugging anytime there are continuous readings below the lower end of the indicator range.

Monitoring Frequency A visible emission survey is conducted and recorded daily.

A one-hour average reading of each baghouse pressure drop is conducted and recorded daily.





One-hour average.








78

Section VI. Specific Operating Conditions (continued) P. Emission Units S2.208.01 through S2.208.22

System 17 – Roaster Circuit: Roaster #1 and Roaster #2 Feed Process Location UTM (Zone 11, NAD 83) m North m East

S2.208.01 Roaster #1 Silo to Feed Box Air Slide System

4,538,477 552,216

S2.208.02 Feed Box to Roaster #1 Belt Air Slide System S2.208.03 Roaster #1 Belt S2.208.04 Roaster #1 Belt to Bucket Elevator Air Slide System S2.208.05 Roaster #1 Bucket Elevator S2.208.06 Roaster #1 Elevator to Fluidized Feeder Air Slide System S2.208.07 Roaster #1 Fluidized Feeder S2.208.08 Roaster #1 Baghouse Hopper Transfer to Feed Box S2.208.09 Coal Transfer to Roaster #1-Bucket Elevator S2.208.10 Roaster #2 Silo to Feed Box Air Slide S2.208.11 Feed Box to Roaster #2 Belt Air Slide System S2.208.12 Roaster #2 Belt S2.208.13 Roaster #2 Belt to Bucket Elevator Air Slide S2.208.14 Roaster #2 Bucket Elevator S2.208.15 Roaster #2 Elevator to Fluidized Feeder Air Slide System S2.208.16 Roaster #2 Fluidized Feeder S2.208.17 Roaster #2 Baghouse Hopper Transfer to Feed Box S2.208.18 Coal Transfer to Roaster #2-Bucket Elevator S2.208.19 Inline Coal Size Reduction Equipment #1 S2.208.20 Inline Coal Size Reduction Equipment #2 S2.208.21 Sulfur Screw Conveyor to Roaster #1 Air Slide S2.208.22 Sulfur Screw Conveyor to Roaster #2 Air Slide


Air Pollution Control Equipment a. Emissions from S2.208.01 through S2.208.22 shall be controlled by baghouses DC-208 and DC-209 operating in

parallel. b. Exhaust from DC-208 and DC-209 vent to a common stack. c. Descriptive Stack Parameters for System 17

Stack Height: 70.0 feet Stack Diameter: 2.67 feet Stack Temperature: 99°F Exhaust Flow: 14,760 dry standard cubic feet per minute (dscfm)

2. NAC 445B.3405 (NAC 445B.316) Part 70 Program Operating Parameters a. The maximum allowable throughput rate for S2.208.01 through S2.208.22, each, shall not exceed 1,000.0 tons of

ore per any one-hour period. b. The maximum allowable throughput rate for S2.208.01 through S2.208.22, each, shall not exceed 10.0 tons of

sulfur per any one-hour period. c. The maximum allowable throughput rate for S2.208.01 through S2.208.22, each, shall not exceed 5.0 tons of coal

per any one-hour period. d. Hours





79

Section VI. Specific Operating Conditions (continued) P. Emission Units S2.208.01 through S2.208.22 (continued)


Emission Limits The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from the stack of System 17 the following pollutants in excess of the following specified limits: a. NAC 445B.305 Part 70 Program – The discharge of PM (particulate matter) to the atmosphere shall not exceed 1.01





e. NAC 445B.22017 Federally Enforceable SIP Requirement – The opacity from the stack of System 17 shall not equal or exceed 20%.












80



Monitoring The permittee, upon issuance of this operating permit, shall: a. Monitor and record the throughput of ore for S2.208.01 through S2.208.22, each, on a daily basis. b. Monitor and record the throughput of sulfur for S2.208.01 through S2.208.22, each, on a daily basis. c. Monitor and record the throughput of coal for S2.208.01 through S2.208.22, each, on a daily basis. d. Monitor and record the hours of operation for S2.208.01 through S2.208.22, each, on a daily basis. e. Record the average hourly throughput rate of ore (in tons per hour) for S2.208.01 through S2.208.22, each, using

the daily throughput and the daily hours of operation. f. Record the average hourly throughput rate of sulfur (in tons per hour) for S2.208.01 through S2.208.22, each, using

the daily throughput and the daily hours of operation. g. Record the average hourly throughput rate of coal (in tons per hour) for S2.208.01 through S2.208.22, each, using

the daily throughput and the daily hours of operation. h. Conduct and record an observation of visible emissions (excluding water vapor) on the exhaust stack of S2.208.01

through S2.208.22 on a monthly basis while operating. The observer shall stand at a distance sufficient to provide a clear view of the emissions with the sun oriented to their back. If visible emissions are observed, the Permittee shall conduct and record a Method 9 visible emission test. Each Method 9 visible emission test must be conducted by a certified visible emissions reader in accordance with 40 CFR Part 60, Appendix A.

i. Inspect the baghouses installed on S2.208.01 through S2.208.22 in accordance with the manufacturer’s operation and maintenance manual and record the results (e.g. the condition of the filter fabric), and any corrective actions taken. If no operation and maintenance manual is available, inspections shall be conducted monthly.


Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in P.5. of this section. b. Maintain records of the occurrence and duration of any startup, shutdown, or malfunction in the operation of an




will be operated, but not later than 180 days after initial startup, the Permittee shall not discharge or cause the discharge into the atmosphere, the following pollutants in excess of the following specified limits: (1) Particulate matter in excess of 0.05 grams per dry standard cubic meter (2.77 lb/hr). (40 CFR 60.382(a)(1)) (2) Emissions from System 17 will not exceed 7 percent opacity. (40 CFR 60.382(a)(2)) (3) The opacity standard set forth in this part shall apply at all times except during period of startup, shutdown,


practicable, maintain and operate System 17, including associated air pollution control equipment in a manner consistent with good air pollution control practice for minimizing emissions. (40 CFR 60.11(d))




81



baghouses (DC-208 and DC-209) as listed in Table P-1 below:

Table P-1: Part 64 CAM Monitoring for DC-208 and DC-209


Measurement Approach Conduct and record an assessment of the visible emissions (excluding water vapor) from the exhaust stack of DC-208 and DC-209 on a weekly basis. If the visible emission survey detects any visible emissions, the Permitee will conduct and record a Method 9 (or an alternative EPA reference method approved by the director) visible emissions test.

Conduct and record a one-hour average reading of the baghouse pressure drop across the inlet and outlet of DC-208 and DC-209, each, once during each day of operation.







Annually


The observer will be Method 9 certified. The DP monitors are Rosemont brand with a five-year no drift guarantee. The pressure taps are checked for plugging anytime there are continuous readings below the lower end of the indicator range.







One-hour average.








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Section VI. Specific Operating Conditions (continued) Q. Emission Units S2.209.1 and S2.209.2

System 18 – Roaster Circuit: Ore Roasting Process Location UTM (Zone 11, NAD 83) m North m East

S2.209.1 Roaster #1 (TU4.003 in MOPTC 1041-2221) 4,538,477 552,145 S2.209.2 Roaster #2 (TU4.004 in MOPTC 1041-2221)

1. NAC 445B.3405 (NAC 445B.316) Part 70 Program Air Pollution Control Equipment a. Emissions from S2.209.1 shall be controlled by a first stage primary cyclone, first stage secondary cyclone, off

gas quencher, a Dust Scrubber (VS-201), and Condenser #1. b. Emissions from S2.209.2 shall be controlled by a first stage primary cyclone, first stage secondary cyclone, off

gas quencher, a Dust Scrubber (VS-202), and Condenser #2. c. Exhaust from Condenser #1 and Condenser #2 shall be combined and ducted to a Wet Electrostatic Precipitator

(ESP-201), Mercury Scrubber (HG-201), SO2 Scrubber (SO2-201), CO Oxidizer (CO-201), and Selective Catalytic Reduction (SCR-201).

d. The exhaust pressure relief bypass on System 18 may be operated 100 hours per year. e. Except for the 100 hours of operation allocated for the exhaust pressure relief bypass under Q.1.d. above, controls

listed under Q.1.a and Q.1.b. above must be utilized during operation of S2.209.1 and S2.209.2. f. S2.209.1 and S2.209.2 may be operated without operating CO-201 and/or SCR-201 provided that oxides of nitrogen

(NOx) and carbon monoxide (CO) emissions, as measured by the continuous emissions monitoring system described under Section IX of this operating permit, remain below the emissions limits established in Q.3.e and f.

g. Descriptive Stack Parameters for SCR-201 Stack Height: 260 feet Stack Diameter: 4.25 feet Stack Temperature: 670°F Exhaust Flow: 25,000 dry standard cubic feet per minute (dscfm)

2. NAC 445B.3405 (NAC 445B.316) Part 70 Program Operating Parameters a. S2.209.1 and S2.209.2, each, may consume #2 fuel oil, sub-bituminous coal, and propane or natural gas.

Propane and natural gas may not be combusted simultaneously. b. The maximum allowable fuel consumption rate for S2.209.1 and S2.209.2, each, shall not exceed 607.0 gallons of

#2 fuel oil per any one-hour period. c. The maximum allowable fuel consumption rate for S2.209.1 and S2.209.2, each, shall not exceed 437.0 gallons of

propane per any one-hour period. d. The maximum allowable fuel consumption rate for S2.209.1 and S2.209.2, each, shall not exceed 39,216.0 cubic

feet of natural gas per any one-hour period, except for 50 hours per year when the maximum fuel consumption rate will not exceed 98,039 cubic feet of pipeline quality natural gas per any one-hour period.

e. The maximum allowable fuel consumption rate for S2.209.1 and S2.209.2, each, shall not exceed 6.8 tons of sub-bituminous coal per any one-hour period.

f. The maximum allowable throughput rate for S2.209.1 and S2.209.2, combined, shall not exceed 1,000.0 tons of ore, petroleum contaminated soil (pcs), carbon fines, spent carbon from carbon adsorption controls, and sulfur per any one-hour period, nor more than 6,752,500.0 tons per year, based on a 12-month rolling period.

g. Hours (1) S2.209.1 and S2.209.2, each, may operate a total of 24 hours per day.




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Section VI. Specific Operating Conditions (continued) Q. Emission Units S2.209.1 and S2.209.2 (continued)


Emission Limits The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from exhaust stack of SCR-201 the following pollutants in excess of the following specified limits: a. NAC 445B.305 Part 70 Program – The discharge of PM (particulate matter) to the atmosphere shall not exceed 6.0








h. NAC 445B.2203 Federally Enforceable SIP Requirement – The maximum allowable discharge of PM10 (particulate matter less than or equal to 10 microns in diameter) to the atmosphere from SCR-201 shall not exceed 0.31 pound per MMBtu.

i. NAC 445B.22033 Federally Enforceable SIP Requirement – The maximum allowable discharge of PM10 (particulate matter less than or equal to 10 microns in diameter) to the atmosphere from SCR-201 shall not exceed 77.59 pounds per hour.

j. NAC 445B.22017 Federally Enforceable SIP Requirement – The opacity from SCR-201 shall not equal or exceed 20%.

k. NAC 445B.22047 Federally Enforceable SIP Requirement – The maximum allowable discharge of Sulfur to the atmosphere from SCR-201 shall not exceed 123.76 pounds per hour.


Performance Testing The Permittee, upon issuance of this operating permit shall conduct annual performance testing within 90 days of the anniversary date of the previous initial performance testing or annual performance testing, and annually thereafter, in accordance with the following: a. All performance and opacity tests comply with the advance notification, protocol review, operational conditions,

reporting, and other requirements of Section I.S. Testing and Sampling (NAC 445B.252) and Section I.T. Testing and Sampling (SIP NAC 445B.252) of this operating permit. Material sampling must be conducted in accordance with protocols approved by the Director. All performance test results shall be based on the arithmetic average of three valid runs (NAC 445B.252(5)).







84



Performance Testing (continued) The Permittee, upon issuance of this operating permit shall conduct annual performance testing within 90 days of the anniversary date of the previous initial performance testing or annual performance testing, and annually thereafter, in accordance with the following: e. The Method 201A and 202 test required in this section may be replaced by a Method 5 in Appendix A of 40 CFR

Part 60 and Method 202 in Appendix M of 40 CFR Part 51 test. All particulate captured in the Method 5 and Method 202 test performed under this provision shall be considered PM2.5 for determination of compliance.


g. Method 7E in Appendix A of 40 CFR Part 60 shall be used to determine the nitrogen oxides concentration. Each test will be run for a minimum of one hour.

h. Method 9 in Appendix A of 40 CFR Part 60 shall be used to determine opacity. Opacity observations shall be conducted concurrently with the applicable performance test. The minimum total time of observations shall be six minutes (24 consecutive observations recorded at 15 second intervals), unless otherwise specified by an applicable subpart.

i. Method 25A in Appendix A of 40 CFR Part 60 shall be used to determine the volatile organic compound concentration. Method 18 in Appendix A of 40 CFR Part 60 or Method 320 in Appendix A of CFR Part 63 may be used in conjunction with Method 25A to break out the organic compounds that are not considered VOC’s by definition per 40 CFR 51.100(s). Each Method 25A test will be run for a minimum of one hour.

j. The performance testing required to determine the concentration of nitrogen oxides under Q.4.g of this section shall be conducted within 60 days of switching between propane and natural gas combustion in S2.009.1 and/or S2.009.2 as allowed under Q.2.a.


Monitoring The permittee, upon issuance of this operating permit, shall: a. Monitor and record the hours of operation while consuming #2 fuel oil for S2.209.1 and S2.209.2, each, on a daily

basis. b. Monitor and record the consumption rate of #2 fuel oil on a daily basis for S2.209.1 and S2.209.2, each, (in

gallons). c. Monitor and record the hours of operation while consuming propane for S2.209.1 and S2.209.2, each, on a daily

basis. d. Monitor and record the consumption rate of propane on a daily basis for S2.209.1 and S2.209.2, each, (in gallons). e. Monitor and record the hours of operation while consuming natural gas for S2.209.1 and S2.209.2, each, on a daily

basis. f. Monitor and record the consumption rate of natural gas on a daily basis for S2.209.1 and S2.209.2, each, (in cubic

feet). g. Monitor and record the hours of operation while consuming sub-bituminous coal for S2.209.1 and S2.209.2, each,

on a daily basis. h. Monitor and record the consumption rate of sub-bituminous coal on a daily basis for S2.209.1 and S2.209.2, each,

(in tons). i. Install, calibrate, operate, and maintain devices for the measurement of the fuel consumption rate for each fuel

combusted in S2.209.1 and S2.209.2. j. Monitor and record the throughput for S2.209.1 and S2.209.2, combined, on a daily basis. k. Monitor and record the hours of operation for S2.209.1 and S2.209.2, combined, on a daily basis.




85



Monitoring (continued) The permittee, upon issuance of this operating permit, shall: l. Record the average hourly throughput rate (in tons per hour) for S2.209.1 and S2.209.2, combined, using the daily

throughput and the daily hours of operation. m. Record the throughput rate of ore, petroleum contaminated soil (pcs), carbon fines, spent carbon from carbon

adsorption controls, and sulfur for S2.209.1 and S2.209.2, combined, on a cumulative monthly basis, for each 12- month rolling period.

n. The Permittee shall comply with all requirement specified in Section IX of this operating permit for Continuous Emissions Monitoring Systems (CEMS).

o. Conduct and record an observation of visible emissions (excluding water vapor) on the final exhaust stack of System 18 on a weekly basis while operating. The observer shall stand at a distance sufficient to provide a clear view of the emissions with the sun oriented to their back. If visible emissions are observed, the Permittee shall conduct and record a Method 9 visible emission test. Each Method 9 visible emission test must be conducted by a certified visible emissions reader in accordance with 40 CFR Part 60, Appendix A.

p. Monitor and record the date, time, and duration of operation for the pressure relief bypass on System 18. q. Excess emissions for SO2, NOx, or CO shall be defined as any 3-hour period during which the average emissions of

SO2, NOx, or CO, as measured by the CEMs devices or a compliance test, exceed the maximum emission limits as set forth in Q.3.d, e, and f.


Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in Q.5. of this section. b. The calendar date and time when the fuel combusted in S2.209.1 and S2.209.2 is switched.

7. Federal Requirements (NAC 445B.3405(1)) (Federally Enforceable SIP Requirement) National Emission Standards for Hazardous Air Pollutants (NESHAPs) – 40 CFR Part 63 Subpart EEEEEEE – Gold Mine Ore Processing and Production Area Source Category The Permittee shall comply with all requirement specified in Section VII of this operating permit for ore pretreatment processes.




86



a. Upon issuance of this operating permit, Permittee shall conduct monitoring, recordkeeping, and reporting for the CO oxidizer (CO-201), when in operation, as listed in Table Q-1 below:

Table Q-1:

Part 64 CAM Monitoring for CO-201 CAM Performance Indicator===> Outlet CO Emissions

Measurement Approach Record hourly average mass emissions of CO, in terms of pounds per hour with a CEMS meeting appropriate performance specifications (such as 40 CFR 60.13; 40 CFR 60, Appendix B, Performance Specification 4; and NAC 445B.257 to 258, NAC 445B.261, and NAC 445B.263 to 265) and appropriate quality assurance procedures (such as 40 CFR 60, Appendix F).

Indicator Range An excursion is defined as a three-hour average emission reading of greater than the CO permit limit of 47.08 lb/hr. Excursions trigger an inspection, corrective action, and a reporting requirement.

Measurement Locations The system meets appropriate performance specifications (such as 40 CFR 60.13; 40 CFR 60, Appendix B, Performance Specification 4; and NAC 445B.257 to 258, NAC 445B.261, and NAC 445B.263 to 265)

Verification of Operational Status CO emissions are measured continuously.


The system meets appropriate quality assurance procedures (such as 40 CFR 60, Appendix F)

Monitoring Frequency CO emissions are measured continuously.

Data Collection Procedures CO emissions are automatically recorded continuously. Averaging Periods Three-hour average.








87


8. 40 CFR Part 64 – Compliance Assurance Monitoring (CAM) (40 CFR 64.1, et.seq.) (continued)

b. Upon issuance of this operating permit, Permittee shall conduct monitoring, recordkeeping, and reporting for the venturi scrubbers (VS-201 and VS-202) as listed in Table Q-2 below:

Table Q-2:

Part 64 CAM Monitoring for VS-201 and VS-202 CAM Performance

Indicator===> Venturi Pressure Drop Venturi Water Flow Rate

Measurement Approach Continuously monitor and record the pressure drop across the inlet and outlet of VS-201 and VS-202 with a differential pressure monitor.

Continuously monitor and record the water flow rate across VS-201 and VS-202 with a flow meter.

Indicator Range An excursion is defined as a one-hour average pressure drop of less than 35 inches of water. Excursions trigger an inspection, corrective action, and a reporting requirement.

An excursion is defined as a one-hour average flow rate of less than 300 gallons per minute. Excursions trigger an inspection, corrective action, and a reporting requirement.

Measurement Locations Pressure taps are located at each venturi scrubber inlet and outlet. The DP monitor has a minimum accuracy of 0.7 inches of water.

The flow meter is located at each venturi scrubber inlet. The flow meter has a minimum accuracy of 3 gallons per minute.


Annually Annually




Monitoring Frequency The pressure drop is monitored and recorded continuously.

The water flow rate is monitored and recorded continuously.


The pressure drop is automatically recorded continuously.

The water flow rate is automatically recorded continuously.

Averaging Periods One-hour average. one-hour average.








88



c. Upon issuance of this operating permit, Permittee shall conduct monitoring, recordkeeping, and reporting for the wet electrostatic precipitator (ESP-201) as listed in Table Q-3 below:

Table Q-3:

Part 64 CAM Monitoring for ESP-201 CAM Performance

Indicator===> ESP Primary and Secondary Voltage and Current

Measurement Approach Continuously monitor and record the voltage and current of ESP-201.

Indicator Range An excursion is defined as a one-hour average primary voltage reading of less than the 110 volts for both the A and B sides; a one-hour average primary current reading of less than 2 amps for the A side and 1 amp for the B side; a one-hour average secondary voltage reading of less than 7 kilovolts for the A side and 3 kilovolts for the B side; and a one-hour average secondary current reading of less than 8 milliamps for the A side and 3 milliamps for the B side. Excursions trigger an inspection, corrective action, and a reporting requirement.

Measurement Locations The meters are part of the ESP-201 design. The minimum accuracy of the meters are: Primary Voltage: ± 10 volts Secondary Voltage: ± 1 kilovolts Primary Current: ± 2 amps Secondary Current: ± 2 milliamps


Annually


Confirm the voltmeter and amperage meter zero when unit not operating (at least semiannually).

Monitoring Frequency The ESP-201 A and B side voltage and current are monitored and recorded continuously.


The voltage and current are automatically recorded continuously.

Averaging Periods One-hour average.








89



d. Upon issuance of this operating permit, Permittee shall conduct monitoring, recordkeeping, and reporting for the mercury scrubber (HG-201) as listed in Table Q-4 below:

Table Q-4:

Part 64 CAM Monitoring for HG-201 CAM Performance

Indicator===> Solution Inlet Line Pressure Solution Outlet Concentration Gas Stream Inlet Temperature

Measurement Approach

Conduct and record a one-hour average reading of the mercuric chloride solution line pressure (head pressure) prior to the HG-201 scrubber tower spray header once during each day of operation.

Conduct and record a measurement of the mercuric chloride solution concentration exiting the HG-201 scrubber once during each day of operation.

Conduct and record a one-hour average reading of the HG-201 inlet gas temperature once during each day of operation.

Indicator Range An excursion is defined as a head pressure reading (described above) of less than 1 pound per square inch or greater than 9 pounds per square inch. Excursions trigger an inspection, corrective action, and a reporting requirement.

An excursion is defined as a mercury (II) chloride concentration reading (described above) of less than 1 gram per liter. Excursions trigger an inspection, corrective actions, and a reporting requirement.

An excursion is defined as an inlet gas temperature reading (described above) of less than 32°F or greater than 134°F. Excursions trigger an inspection, corrective action, and a reporting requirement.

Measurement Locations

The pressure monitor is located at the inlet of the scrubber. The pressure monitor has a minimum accuracy of 0.1 pound per square inch.

Standard sampling and laboratory procedures are used.

The thermocouple is located at the inlet to the scrubber. The minimum tolerance of the thermocouple is ±0.4°F.


Annually Not applicable. No device. Annually



Standard sampling and laboratory procedure are used.

The accuracy of the thermocouple is verified by a second thermocouple probe.

Monitoring Frequency A one-hour average reading of the solution inlet line pressure is conducted and recorded daily.

A measurement of the solution outlet concentration is conducted and recorded daily.

A one-hour average reading of the gas stream inlet temperature is conducted and recorded daily.


The solution inlet line pressure is automatically recorded daily.

The solution outlet concentration is manually recorded daily.

The gas stream inlet temperature is automatically recorded daily.

Averaging Periods One-hour average. None. One-hour average.








90

Section VI. Specific Operating Conditions (continued) R. Emission Units S2.210 and S2.211

System 19 – Roaster Circuit: Quenching Process Location UTM (Zone 11, NAD 83) m North m East

S2.210 Roaster #1 Quench Tank (TU4.005 in MOPTC 1041-2221) 4,538,486 552,142 S2.211 Roaster #2 Quench Tank (TU4.006 in MOPTC 1041-2221) 4,538,465 552,142


Air Pollution Control Equipment a. Emissions from S2.210 shall be controlled by a venturi scrubber (VS-203), and emissions from S2.211 shall be

controlled by a venturi scrubber (VS-204). b. S2.210 and S2.211 shall each have their own stack. d. The exhaust pressure relief bypass on System 19 may be operated 100 hours per year. e. Except for the 100 hours of operation allocated for the exhaust pressure relief bypass under R.1.d. above, controls

listed under R.1.a above must be utilized during operation of S2.010 and S2.011. c. Descriptive Stack Parameters for S2.210 and S2.211, each


2. NAC 445B.3405 (NAC 445B.316) Part 70 Program Operating Parameters a. The maximum allowable throughput rate for S2.210 and S2.211, each, shall not exceed 500.0 tons of ore per any

one-hour period, nor more than 4,380,000.0 tons per year, based on a 12-month rolling period. b. Hours


3. NAC 445B.3405 (NAC 445B.316) Part 70 Program Emission Limits The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from S2.210 and S2.211, each, the following pollutants in excess of the following specified limits: a. NAC 445B.305 Part 70 Program – The discharge of PM (particulate matter) to the atmosphere shall not exceed 1.84




d. NAC 445B.22033 Federally Enforceable SIP Requirement – The maximum allowable discharge of PM10 (particulate matter less than or equal to 10 microns in diameter) to the atmosphere from S2.210 and S2.211, each, shall not exceed 68.96 pounds per hour.

e. NAC 445B.22017 Federally Enforceable SIP Requirement – The opacity from S2.210 and S2.211, each, shall not equal or exceed 20%.




91

Section VI. Specific Operating Conditions (continued) R. Emission Units S2.210 and S2.211 (continued)


Performance Testing The Permittee, upon issuance of this operating permit shall conduct annual performance testing within 90 days of the anniversary date of the previous initial performance testing or annual performance testing, and annually thereafter, in accordance with the following: a. All performance and opacity tests comply with the advance notification, protocol review, operational conditions,

reporting, and other requirements of Section I.S. Testing and Sampling (NAC 445B.252) and Section I.T. Testing and Sampling (SIP NAC 445B.252) of this operating permit. Material sampling must be conducted in accordance with protocols approved by the Director. All performance test results shall be based on the arithmetic average of three valid runs (NAC 445B.252(5)).







Monitoring The permittee, upon issuance of this operating permit, shall: a. Monitor and record the throughput for S2.210 and S2.211, each, on a daily basis. b. Monitor and record the hours of operation for S2.210 and S2.211, each, on a daily basis. c. Record the average hourly throughput rate (in tons per hour) for S2.210 and S2.211, each, using the daily throughput

and the daily hours of operation. d. Record the throughput rate of ore for S2.210 and S2.211, each, on a cumulative monthly basis, for each 12- month

rolling period. e. Conduct and record an observation of visible emissions (excluding water vapor) on the wet scrubbers on a monthly

basis while operating. The observer shall stand at a distance sufficient to provide a clear view of the emissions with the sun oriented to their back. If visible emissions are observed, the Permittee shall conduct and record a Method 9 visible emission test. Each Method 9 visible emission test shall be conducted by a certified visible emissions reader in accordance with 40 CFR Part 60, Appendix A.

f. Inspect the wet scrubbers installed on S2.210 and S2.211 in accordance with the manufacturer’s operation and maintenance manual and record the results (e.g. the condition of the water spray nozzles), and any corrective actions taken. If no operation and maintenance manual is available, inspections shall be conducted monthly.

g. Monitor and record the date, time, and duration of operation for the pressure relief bypass on System 19. 6. NAC 445B.3405 (NAC 445B.316) Part 70 Program

Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in R.5. of this section.




92

Section VI. Specific Operating Conditions (continued) R. Emission Units S2.210 and S2.211 (continued)



a. Upon issuance of this operating permit, Permittee shall conduct monitoring, recordkeeping, and reporting for the venturi scrubbers (VS-203 and VS-204) as listed in Table R-1 below:

Table R-1:

Part 64 CAM Monitoring for VS-203 and VS-204 CAM Performance

Indicator===> Venturi Pressure Drop Venturi Water Flow Rate

Measurement Approach Conduct and record a one-hour average reading of the venturi scrubber pressure drop across the inlet and outlet of VS-203 and VS-204 with a differential pressure (DP) monitor, once during each day of operation.

Conduct and record a one-hour average reading of the water flow rate across VS-203 and VS-204 with a flow meter once during each day of operation.

Indicator Range An excursion is defined as a pressure drop reading (described above) of less than 16 inches of water. Excursions trigger an inspection, corrective action, and a reporting requirement.

An excursion is defined as a flow rate reading of less than 70 gallons per minute. Excursions trigger an inspection, corrective action, and a reporting requirement.

Measurement Locations Pressure taps are located at each venturi scrubber inlet and outlet. The DP monitor has a minimum accuracy of 0.2 inches of water.

The flow meter is located at each venturi scrubber inlet. The flow meter has a minimum accuracy of 0.5 gallons per minute.


Annually Annually




Monitoring Frequency A one-hour average reading of each venturi scrubber pressure drop is conducted and recorded daily.

A one-hour average reading of each venturi scrubber water flow rate is conducted and recorded daily.


The pressure drop is automatically recorded daily. The water flow rate is automatically recorded daily.

Averaging Periods One-hour average. One-hour average.



Reporting Permittee shall comply with the applicable General Reporting Requirements set forth in 40 CFR 64.9(a). Recordkeeping Permittee shall comply with the applicable General Recordkeeping Requirements set forth in 40 CFR 64.9(b).




93

Section VI. Specific Operating Conditions (continued) S. Emission Unit S2.212

System 20 – Ancillary Roaster Processes: Coal Silo Location UTM (Zone 11, NAD 83) m North m East

S2.212 Coal Silo, 200 ton, Loading (and coal silo discharge to fully enclosed screw conveyor formerly PF1.204) 4,538,477 552,191


Air Pollution Control Equipment a. Emissions from S2.212 shall be controlled by a vent filter (PDC-201). b. Descriptive Stack Parameters for S2.212


2. NAC 445B.3405 (NAC 445B.316) Part 70 Program Operating Parameters a. The maximum allowable throughput rate for S2.212 shall not exceed 120.0 tons of coal per any one-hour period, nor




pounds per hour, nor more than 0.33 ton per year, based on 12-month rolling period. b. NAC 445B.305 Part 70 Program – The discharge of PM10 (particulate matter less than or equal to 10 microns in








94

Section VI. Specific Operating Conditions (continued) S. Emission Unit S2.212 (continued)


hours of operation. d. Record the throughput rate of coal for S2.212 on a cumulative monthly basis, for each 12- month rolling period. e. Conduct and record an observation of visible emissions (excluding water vapor) on the vent filter on a monthly basis




Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in S.4. of this section.




95

Section VI. Specific Operating Conditions (continued) T. Emission Units S2.213 through S2.215

System 21 – Ancillary Roaster Processes: Propane Vaporizers Location UTM (Zone 11, NAD 83) m North m East

S2.213 Vaporizer #1 4,538,376 552,061 S2.214 Vaporizer #2 4,538,379 552,060 S2.215 Vaporizer #3 4,538,382 552,058


Air Pollution Control Equipment a. Emissions from S2.213 through S2.215 shall be uncontrolled. b. S2.213 through S2.215, each, shall have two stacks. All stacks share the same stack parameters. c. Descriptive Stack Parameters for each stack in System 21



Operating Parameters a. S2.213 through S2.215 may consume only propane. b. The maximum allowable fuel consumption rate for S2.213 through S2.215, each, shall not exceed 51.4 gallons of

propane per any one-hour period. c. Hours

(1) S2.213 through S2.215, each, may operate a total of 24 hours per day.

3. NAC 445B.3405 (NAC 445B.316) Part 70 Program Emission Limits The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from S2.213 through S2.215, each, the following pollutants in excess of the following specified limits: a. NAC 445B.305 Part 70 Program – The discharge of PM (particulate matter) to the atmosphere shall not exceed






f. NAC 445B.305 Part 70 Program – The discharge of CO (carbon monoxide) to the atmosphere shall not exceed 0.42 pound per hour, nor more than 1.84 tons per year, based on 12-month rolling period.

g. NAC 445B.305 Part 70 Program – The discharge of VOCs (volatile organic compounds) to the atmosphere shall not exceed 0.52 pound per hour, nor more than 2.28 tons per year, based on 12-month rolling period.

h. NAC 445B.2203 Federally Enforceable SIP Requirement – The maximum allowable discharge of PM10 (particulate matter less than or equal to 10 microns in diameter) to the atmosphere from S2.213 through S2.215, each, shall not exceed 0.60 pound per MMBtu.




96

Section VI. Specific Operating Conditions (continued) T. Emission Units S2.213 through S2.215 (continued)


Emission Limits (continued) The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from S2.213 through S2.215, each, the following pollutants in excess of the following specified limits: i. NAC 445B.22017 Federally Enforceable SIP Requirement – The opacity from S2.213 through S2.215, each, shall

not equal or exceed 20%. j. NAC 445B.22047 Federally Enforceable SIP Requirement – The maximum allowable discharge of Sulfur to the

atmosphere from S2.213 through S2.215, each, shall not exceed 3.29 pounds per hour.

4. NAC 445B.3405 (NAC 445B.316) Part 70 Program Monitoring The permittee, upon issuance of this operating permit, shall: a. Monitor and record the hours of operation while consuming propane for S2.213 through S2.215, each, on a daily

basis. b. Monitor and record the consumption rate of propane on a daily basis for S2.213 through S2.215, each, (in gallons).

5. NAC 445B.3405 (NAC 445B.316) Part 70 Program Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in T.4. of this section.




97

Section VI. Specific Operating Conditions (continued) U. Emission Unit S2.216

System 22 – Ancillary Roaster Process: Slaked Lime Silo Location UTM (Zone 11, NAD 83) m North m East

S2.216 Lime Silo, Slaking, 1,000 ton, Loading (and Lime Silo, Slaking, discharge to fully enclosed screw conveyor formerly PF1.205) 4,538,517 552,097








pound per hour, nor more than 0.12 ton per year, based on 12-month rolling period. b NAC 445B.305 Part 70 Program – The discharge of PM10 (particulate matter less than or equal to 10 microns in








98

Section VI. Specific Operating Conditions (continued) U. Emission Unit S2.216 (continued)


hours of operation. d. Record the throughput rate of lime for S2.216 on a cumulative monthly basis, for each 12- month rolling period. e. Conduct and record an observation of visible emissions (excluding water vapor) on the vent filter on a monthly basis


f. Inspect the vent filter installed on S2.216 in accordance with the manufacturer’s operation and maintenance manual and record the results (e.g. the condition of the filter fabric), and any corrective actions taken. If no operation and maintenance manual is available, inspections shall be conducted monthly. .


Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in U.4. of this section.




99

Section VI. Specific Operating Conditions (continued) V. Emission Unit S2.217

System 23 – Ancillary Roaster Processes: Roaster Mill Lime Silo Location UTM (Zone 11, NAD 83) m North m East

S2.217 Roaster Mill Lime Silo, 500 ton, Loading (Roaster Mill Silo discharge to Mill #1 Conveyor via full enclosure, formerly PF1.206, and Roaster Mill Silo Discharge to Mill #2 Conveyor via full enclosure, formerly PF1.207)

4,538,477 552,347




2. NAC 445B.3405 (NAC 445B.316) Part 70 Program Operating Parameters a. The maximum allowable throughput rate for S2.217 shall not exceed 120.0 tons of lime or soda ash per any one-

hour period, nor more than 125,000.0 tons per year, based on a 12-month rolling period. b. Hours



pound per hour, nor more than 0.06 ton per year, based on 12-month rolling period. b. NAC 445B.305 Part 70 Program – The discharge of PM10 (particulate matter less than or equal to 10 microns in








100

Section VI. Specific Operating Conditions (continued) V. Emission Unit S2.217 (continued)


hours of operation. d. Record the throughput rate of lime or soda ash for S2.217 on a cumulative monthly basis, for each 12- month rolling

period. e. Conduct and record an observation of visible emissions (excluding water vapor) on the vent filter on a monthly basis




Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in V.4. of this section.




101

Section VI. Specific Operating Conditions (continued) W. Emission Unit S2.218

System 24 – Ancillary Roaster Processes: Soda Ash Silo Location UTM (Zone 11, NAD 83) m North m East

S2.218 Soda Ash Silo, 200 ton, Loading (Soda Ash Silo discharge to fully enclosed screw conveyor, formerly PF1.208) 4,538,517 552,127




2. NAC 445B.3405 (NAC 445B.316) Part 70 Program Operating Parameters a. The maximum allowable throughput rate for S2.218 shall not exceed 120.0 tons of soda ash per any one-hour

period, nor more than 100,000.0 tons per year, based on a 12-month rolling period. b. Hours











102

Section VI. Specific Operating Conditions (continued) W. Emission Unit S2.218 (continued)


hours of operation. d. Record the throughput rate of soda ash for S2.218 on a cumulative monthly basis, for each 12- month rolling period. e. Conduct and record an observation of visible emissions (excluding water vapor) on the vent filter on a monthly basis




Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in W.4. of this section.




103

Section VI. Specific Operating Conditions (continued) X. Emission Unit S2.220

System 26 – Ancillary Roaster Processes: Liquid Oxygen Vaporizer Location UTM (Zone 11, NAD 83) m North m East

S2.220 Liquid Oxygen Vaporizer 4,538,574 552,112 1. NAC 445B.3405 (NAC 445B.316) Part 70 Program

Air Pollution Control Equipment a. Emissions from S2.220 are uncontrolled. b. Descriptive Stack Parameters for S2.220

Stack Height: 15 feet Stack Diameter: 1.0 foot Stack Temperature: 910°F Exhaust Flow: 4,202 dry standard cubic feet per minute (dscfm)


Operating Parameters a. S2.220 may consume either propane or natural gas. Combustion of a blend of these fuels is prohibited. b. The maximum allowable fuel consumption rate for S2.220 shall not exceed 251.0 gallons of propane per any one-

hour period, nor more than 327,869.0 gallons per year, based on a 12-month rolling period. c. The maximum allowable fuel consumption rate for S2.220 shall not exceed 22,549.0 cubic feet of natural gas per

any one-hour period, nor more than 29,411,765.0 cubic feet per year, based on a 12-month rolling period. d. Hours














104

Section VI. Specific Operating Conditions (continued) X. Emission Unit S2.220 (continued)


Emission Limits (continued) The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from S2.220 the following pollutants in excess of the following specified limits: i. NAC 445B.22017 Federally Enforceable SIP Requirement – The opacity from S2.220 shall not equal or exceed

20%. j. NAC 445B.22047 Federally Enforceable SIP Requirement – The maximum allowable discharge of Sulfur to the

atmosphere from S2.220 shall not exceed 16.08 pounds per hour. 4. NAC 445B.3405 (NAC 445B.316) Part 70 Program



b. Testing shall be conducted on the exhaust stack (post controls). c. Method 7E in Appendix A of 40 CFR Part 60 shall be used to determine the nitrogen oxides concentration. Each test

will be run for a minimum of one hour. d. Method 9 in Appendix A of 40 CFR Part 60 shall be used to determine opacity. Opacity observations shall be


e. Method 10 in Appendix A of 40 CFR Part 60 shall be used to determine the carbon monoxide concentration. Each test will be run for a minimum of one hour.

f. Method 25A in Appendix A of 40 CFR Part 60 shall be used to determine the volatile organic compound concentration. Method 18 in Appendix A of 40 CFR Part 60 or Method 320 in Appendix A of CFR Part 63 may be used in conjunction with Method 25A to break out the organic compounds that are not considered VOC’s by definition per 40 CFR 51.100(s). Each Method 25A test will be run for a minimum of one hour.

g. The performance testing required to determine the concentration of nitrogen oxides and carbon monoxide under X.4.c and e of this section shall be conducted within 60 days of switching the fuel combusted in S2.220 as allowed under X.2.a.




month rolling period.




105

Section VI. Specific Operating Conditions (continued) X. Emission Unit S2.220 (continued)


Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in X.5. of this section. b. The calendar date and time when the fuel combusted in S2.220 is switched.




106

Section VI. Specific Operating Conditions (continued) Y. Emission Unit S2.223

System 29 – Ancillary Roaster Processes: Quench Water Cooling Tower Location UTM (Zone 11, NAD 83) m North m East

S2.223 Quench Water Cooling Tower 4,538,387 552,127

1. NAC 445B.3405 (NAC 445B.316) Part 70 Program Air Pollution Control Equipment a. Emissions from S2.223 shall be controlled by drift eliminators with 0.001% drift lost efficiency. b. Descriptive Stack Parameters Height: 61.3 feet Diameter: 28.0 feet Stack Temperature: Ambient

Exhaust Flow: 1,326,461 dry standard cubic feet per minute (dscfm)

2. NAC 445B.3405 (NAC 445B.316) Part 70 Program Operating Parameters

a. The maximum circulating feed water flow rate for S2.223 shall not exceed 793,200.0 gallons per hour (13,220.0 gallons per minute).

b. The maximum total dissolved solids (TDS) content of the circulating feed water for S2.223 shall not exceed 15,000 ppm by weight (ppmw).

c. The use of chromium-based water treatment chemicals is prohibited. d. Hours S2.223 may operate a total of 24 hours per day.


Emission Limits The permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from S2.223, the following pollutants in excess of the following specified limits: a. NAC 445B.305 Part 70 Program - The discharge of PM (particulate matter) to the atmosphere shall not exceed 0.99

pound per hour, nor more than 4.34 tons per year, based on a 12-month rolling period. b. NAC 445B.305 Part 70 Program - The discharge of PM10 (particulate matter less than or equal to 10 microns in

diameter) to the atmosphere shall not exceed 0.99 pound per hour, nor more than 4.43 tons per year, based on a 12-month rolling period.

c. NAC 445B.305 Part 70 Program – The discharge of PM2.5 (particulate matter less than or equal to 2.5 microns in diameter) to the atmosphere shall not exceed 0.99 pound per hour, nor more than 4.43 tons per year, based on 12-month rolling period.

d. NAC 445B.22033 Federally Enforceable SIP Requirement – The maximum allowable discharge of PM10 (particulate matter less than or equal to 10 microns in diameter) to the atmosphere shall not exceed 94.11 pounds per hour.

e. NAC 445B.22017 Federally Enforceable SIP Requirement - The opacity from S2.223, shall not equal or exceed 20%.


Performance Testing a. Within 60 days, but no later than 180 days after the issuance date of this Operating Permit, and on a calendar

quarterly basis thereafter, Permittee shall sample the cooling tower circulating feed water and determine the total dissolved solids (TDS, reported in mg per liter, or ppm by weight). The TDS concentration will be determined using Standard Method 2540 C-2011, ASTM Method D5907-13, or alternative methods approved in advance by the Director.




107

Section VI. Specific Operating Conditions (continued)

Y. Emission Unit S2.223 (continued)

5. NAC 445B.3405 (NAC 445B.316) Part 70 Program Monitoring The Permittee, upon issuance of this operating permit, shall: a. Monitor and record the total daily hours of operation of S2.223. b. Monitor and record the total daily quantities of circulating feed water (in gallons) for each day that S2.223 operates. c. Monitor and record the average hourly circulating feed water flow rate by dividing the total daily quantity of

circulating feed water and the total daily hours of operation. d. Sample the cooling tower water from S2.223 on a calendar quarterly basis for the TDS concentration in parts per

million (ppm). The TDS shall be determined in accordance with Y.4.a. above. 6. NAC 445B.3405 (NAC 445B.316) Part 70 Program

Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in Y.5. of this section.




108

Section VI. Specific Operating Conditions (continued) Z. Emission Unit PF1.119

System 49 – Meikle Backfill/Cement Feed Plant Feed Hopper Location UTM (Zone 11, NAD 83) m North m East

PF1.119 Transfer to Aggregate Feed Conveyor via Hopper with Grizzly (Feed Conveyor discharge through full enclosure, formerly System 50 PF1.121) 4,539,249 551,961


Air Pollution Control Equipment Emissions from PF1.119 shall be controlled by a water spray.


Operating Parameters a. The maximum allowable throughput rate for PF1.119 shall not exceed 500.0 tons of aggregate per any one-hour










hours of operation. d. Record the throughput rate of aggregate for PF1.119 on a cumulative monthly basis, for each 12- month rolling

period. e. Conduct and record an observation of visible emissions (excluding water vapor) on PF1.119 on a monthly basis





109

Section VI. Specific Operating Conditions (continued) Z. Emission Unit PF1.119 (continued)


Monitoring (continued) The permittee, upon issuance of this operating permit, shall: f. The Permittee of any affected facility that uses wet suppression to control emissions from the affected facility must

perform monthly periodic inspections to check that water is flowing to discharge spray nozzles in the wet suppression system. The Permittee must initiate corrective action within 24 hours and complete corrective action as expediently as practical if the Permittee finds that water is not flowing properly during an inspection of the water spray nozzles. The Permittee must record each inspection of the water spray nozzles, including the date of each inspection and any corrective actions taken.


Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in Z.4. of this section. b. Maintain records of the occurrence and duration of any startup, shutdown, or malfunction in the operation of an


6. Federal Requirements (NAC 445B.3405(1)) (Federally Enforceable SIP Requirement) New Source Performance Standards (NSPS) – 40 CFR Part 60 Subpart OOO – Standards of Performance for Nonmetallic

Mineral Processing Plants (40 CFR Part 60.670) a. Emission Limits (40 CFR Part 60.672, Table 3)

On and after the sixtieth day after achieving the maximum production rate at which PF1.119 will be operated, but not later than 180 days after initial startup, the Permittee shall not discharge or cause the discharge into the atmosphere, the following pollutants in excess of the following specified limits: (1) Process fugitive emissions from PF1.119 will not exceed 10 percent opacity. (40 CFR Part 60.672(b)) (2) The opacity standard set forth in this part shall apply at all times except during period of startup, shutdown,

and malfunction. (40 CFR 60.11(c)) b. Notifications and reports required under this subpart and under subpart A of this part to demonstrate compliance with

this subpart need only to be sent to the EPA Region or the State which has been delegated authority according to 40 CFR 60.4(b). (40 CFR 60.676(k))

c. At all times, including periods of startup, shutdown, and malfunction, owners and operators shall, to the extent practicable, maintain and operate any affected facility including associated air pollution control equipment in a manner consistent with good air pollution control practice for minimizing emissions. Determination of whether acceptable operating and maintenance procedures are being used will be based on information available to the Administrator which may include, but is not limited to, monitoring results, opacity observations, review of operating and maintenance procedures, and inspection of the source (40 CFR 60.11(d)).




110

Section VI. Specific Operating Conditions (continued) AA. Emission Unit S2.101

System 51 – Meikle Backfill/Cement Feed Plant Silo #1 Location UTM (Zone 11, NAD 83) m North m East

S2.101 Cement/Ash Silo #1 Loading (and Cement/Ash Silo #1 discharge and screw conveyor transfer, both fully enclosed, formerly PF1.122 and PF1.122.1 respectively

4,539,271 551,932




2. NAC 445B.3405 (NAC 445B.316) Part 70 Program Operating Parameters a. The maximum allowable throughput rate for S2.101 shall not exceed 80.0 tons of cement or fly ash per any one-












111

Section VI. Specific Operating Conditions (continued) AA. Emission Unit S2.101 (continued)


hours of operation. d. Record the throughput rate of cement or fly ash for S2.101 on a cumulative monthly basis, for each 12- month

rolling period. e. Conduct and record an observation of visible emissions (excluding water vapor) on the vent filter on a monthly basis




Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in AA.4. of this section.




112

Section VI. Specific Operating Conditions (continued) AB. Emission Unit S2.102


S2.102 Cement/Ash Silo #2 Loading (and Cement/Ash Silo #2 discharge and screw conveyor transfer both fully enclosed, formerly PF1.123 and PF1.123.1 respectively)

4,539,265 551,932




2. NAC 445B.3405 (NAC 445B.316) Part 70 Program Operating Parameters a. The maximum allowable throughput rate for S2.102 shall not exceed 80.0 tons of cement or fly ash per any one-












113

Section VI. Specific Operating Conditions (continued) AB. Emission Unit S2.102 (continued)


hours of operation. d. Record the throughput rate of cement or fly ash for S2.102 on a cumulative monthly basis, for each 12- month





Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in AB.4. of this section.




114

Section VI. Specific Operating Conditions (continued) AC. Emission Units S2.004.1 and S2.004.3 through S2.004.6

System 61A – Carbon Reactivation Kiln #2: Kiln Throughput and PB Tanks Location UTM (Zone 11, NAD 83) m North m East

S2.004.1 Carbon Kiln #2 Drum (TU4.008 in MOPTC 1041-2221)

4,536,197 554,605 S2.004.3 Pregnant Solution Tank A-Side (TU4.009 in MOPTC 1041-2221) S2.004.4 Pregnant Solution Tank B - Side (TU4.010 in MOPTC 1041-2221) S2.004.5 Barren Solution Tank A - Side (TU4.011 in MOPTC 1041-2221) S2.004.6 Barren Solution Tank B - Side (TU4.012 in MOPTC 1041-2221)


Air Pollution Control Equipment a. Emissions from S2.004.1 shall be ducted to a control system consisting of a venturi scrubber (WS-001) and a

condensation tower (CT-001). b. Emissions from S2.004.1 and S2.004.3 through S2.004.6 combined, shall be ducted to a control system consisting

of a 6.0-ton carbon bed (CA-001) and a 1.65-ton carbon bed (CA-002). c. Descriptive Stack Parameters

Stack Height: 100 feet Stack Diameter: 0.958 feet Stack Temperature: 158°F Volume Flow Rate: 3,500 dry standard cubic feet per minute (dscfm)


Operating Parameters a. The maximum allowable throughput of carbon for S2.004.1 shall not exceed 3.0 tons per hour. b. The maximum allowable throughput rate of solution for S2.004.3 through S2.004.6, each, shall not exceed 250.0

gallons per minute. c. Hours

(1) S2.004.1 and S2.004.3 through S2.004.6, each, may operate a total of 24 hours per day. 3. NAC 445B.3405 (NAC 445B.316) Part 70 Program

Emission Limits The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from System 61A the following pollutants in excess of the following specified limits: a. NAC 445B.305 Part 70 Program – The discharge of PM (particulate matter) to the atmosphere shall not exceed 0.4

pound per hour, nor more than 1.75 tons per 12-month rolling period. b. NAC 445B.305 Part 70 Program – The discharge of PM10 (particulate matter less than or equal to 10 microns in

diameter) to the atmosphere shall not exceed 0.4 pound per hour, nor more than 1.75 tons per 12-month rolling period.

c. NAC 445B.305 Part 70 Program – The discharge of PM2.5 (particulate matter less than or equal to 2.5 microns in diameter) to the atmosphere shall not exceed 0.4 pound per hour, nor more than 1.75 tons per 12-month rolling period.

d. NAC 445B.305 Part 70 Program – The discharge of NOX (oxides of nitrogen) to the atmosphere shall not exceed 0.12 pound per hour, nor more than 0.53 ton per year, based on 12-month rolling period.

e. NAC 445B.305 Part 70 Program – The discharge of CO (carbon monoxide) to the atmosphere shall not exceed 1.18 pounds per hour, nor more than 5.17 tons per year, based on 12-month rolling period.

f. NAC 445B.305 Part 70 Program – The discharge of VOCs (volatile organic compounds) to the atmosphere shall not exceed 1.13 pounds per hour, nor more than 4.94 tons per year, based on 12-month rolling period.

g. NAC 445B.22033 Federally Enforceable SIP Requirement -The maximum allowable discharge of PM10 to the atmosphere final exhaust stack of System 61A shall not exceed 8.56 pounds per hour.




115


AC. Emission Units S2.004.1 and S2.004.3 through S2.004.6 (continued)

3. NAC 445B.3405 (NAC 445B.316) Part 70 Program Emission Limits (continued) h. NAC 445B.22017 Federally Enforceable SIP Requirement - The opacity from the final exhaust stack of System 61A

shall not equal or exceed 20%. 4. NAC 445B.3405 (NAC 445B.316) Part 70 Program

Performance Testing a. All performance and opacity tests must comply with the advance notification, protocol review, operational


b. Testing shall be conducted on the exhaust stack (post controls). c. The Permittee, upon issuance of this operating permit, shall conduct renewal performance testing at least 90 days

prior to the expiration of this operating permit, but no earlier than 365 days from the date of expiration of this operating permit, and every 5 years thereafter, in accordance with the following: (1) Method 9 in Appendix A of 40 CFR Part 60 shall be used to determine opacity. Opacity observations shall be




d. The Permittee, upon issuance of this operating permit, shall conduct annual performance testing within 90 days of the anniversary date of the previous initial performance testing or annual performance testing, and annually thereafter, in accordance with the following: (1) Method 5 in Appendix A of 40 CFR Part 60 shall be used to determine PM emissions. The sample volume for







116


AC. Emission Units S2.004.1 and S2.004.3 through S2.004.6 (continued) 5. NAC 445B.3405 (NAC 445B.316) Part 70 Program

Monitoring The permittee, upon issuance of this operating permit, shall: a. Monitor and record the throughput rate (in tons) carbon processed in S2.004.1 on a daily basis. b. Monitor and record the hours of operation for S2.004.1 and S2.004.3 through S2.004.6, each, on a daily basis. c. Monitor and record a reading of the throughput rate of solution (in gallons per minute), for S2.004.3 through

S2.004.6, each, on a daily basis. d. Record the average hourly throughput rate (in tons per hour) for S2.004.1 using the daily throughput and the daily

hours of operation. e. Conduct and record an observation of visible emissions (excluding water vapor) on the exhaust stack of System 61A

on a monthly basis while operating. The observer shall stand at a distance sufficient to provide a clear view of the emissions with the sun oriented to their back. If visible emissions are observed, the Permittee shall conduct and record a Method 9 visible emission test. Each Method 9 visible emission test shall be conducted by a certified visible emissions reader in accordance with 40 CFR Part 60, Appendix A.

f. Inspect the venturi scrubber installed on System 61A in accordance with the manufacturer’s operation and maintenance manual and record the results (e.g. the condition of the water spray nozzles), and any corrective actions taken.. If no operation and maintenance manual is available, inspections shall be conducted monthly.


Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in AC.5. of this section.


National Emission Standards for Hazardous Air Pollutants (NESHAPs) – 40 CFR Part 63 Subpart EEEEEEE – Gold Mine Ore Processing and Production Area Source Category The Permittee shall comply with all requirement specified in Section VII of this operating permit for Carbon Processes with Retorts.




117

Section VI. Specific Operating Conditions (continued) AD. Emission Unit S2.004.2

System 61B – Carbon Reactivation Kiln #2: Carbon Kiln #2 Burner Location UTM (Zone 11, NAD 83) m North m East

S2.004.2 Carbon Kiln #2 Burner 4,536,197 554,605 1. NAC 445B.3405 (NAC 445B.316) Part 70 Program

Air Pollution Control Equipment a. Emissions from S2.004.2 are uncontrolled. b. Emissions from S2.004.2 vent through two identical stacks. c. Descriptive Stack Parameters for S2.004.2



Operating Parameters a. S2.004.2 may consume either propane or natural gas. Combustion of a blend of these fuels is prohibited. b. The maximum allowable fuel consumption rate for S2.004.2 shall not exceed 191.0 gallons of propane per any one-

hour period. c. The maximum allowable fuel consumption rate for S2.004.2 shall not exceed 17,157.0 cubic feet of natural gas per

any one-hour period. d. Hours

(1) S2.004.2 may operate a total of 24 hours per day.

3. NAC 445B.3405 (NAC 445B.316) Part 70 Program Emission Limits The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from S2.004.2 the following pollutants in excess of the following specified limits: a. NAC 445B.305 Part 70 Program – The discharge of PM (particulate matter) to the atmosphere shall not exceed 0.60

pound per hour, nor more than 2.64 tons per year, based on 12-month rolling period. b. NAC 445B.305 Part 70 Program – The discharge of PM10 (particulate matter less than or equal to 10 microns in







h. NAC 445B.2203 Federally Enforceable SIP Requirement – The maximum allowable discharge of PM10 (particulate matter less than or equal to 10 microns in diameter) to the atmosphere from S2.004.2 shall not exceed 0.53 pound per MMBtu.




118

Section VI. Specific Operating Conditions (continued) AD. Emission Unit S2.004.2 (continued)


Emission Limits (continued) The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from S2.004.2 the following pollutants in excess of the following specified limits: i. NAC 445B.22017 Federally Enforceable SIP Requirement – The opacity from S2.004.2 shall not equal or exceed


atmosphere from S2.004.2 shall not exceed 12.25 pounds per hour. 4. NAC 445B.3405 (NAC 445B.316) Part 70 Program



b. Testing shall be conducted on the exhaust stack (post controls). c. Method 7E in Appendix A of 40 CFR Part 60 shall be used to determine the nitrogen oxides concentration. Each test



e. Method 10 in Appendix A of 40 CFR Part 60 shall be used to determine the carbon monoxide concentration. Each test will be run for a minimum of one hour.

f. Method 25A in Appendix A of 40 CFR Part 60 shall be used to determine the volatile organic compound concentration. Method 18 in Appendix A of 40 CFR Part 60 or Method 320 in Appendix A of CFR Part 63 may be used in conjunction with Method 25A to break out the organic compounds that are not considered VOC’s by definition per 40 CFR 51.100(s). Each Method 25A test will be run for a minimum of one hour

g. The performance testing required to determine the concentration of nitrogen oxides and carbon monoxide under AD.4.c. and e. of this section shall be conducted within 60 days of switching the fuel combusted in S2.004.2 as allowed under AD.2.a.


Monitoring The permittee, upon issuance of this operating permit, shall: a. Monitor and record the hours of operation while consuming propane for S2.004.2 on a daily basis. b. Monitor and record the hours of operation while consuming natural gas for S2.004.2 on a daily basis. c. Monitor and record the consumption rate of propane on a daily basis for S2.004.2 (in gallons). d. Monitor and record the consumption rate of natural gas on a daily basis for S2.004.2 (in cubic feet). e. Record the average hourly throughput rate of propane (in gallons per hour) for S2.004.2 using the daily throughput

and the daily hours of operation. f. Record the average hourly throughput rate of natural gas (in cubic feet per hour) for S2.004.2 using the daily

throughput and the daily hours of operation.




119

Section VI. Specific Operating Conditions (continued) AD. Emission Unit S2.004.2 (continued)


Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in AD.4. of this section. b. The calendar date and time when the fuel combusted in S2.004.2 is switched.




120

Section VI. Specific Operating Conditions (continued) AE. Emission Units PF1.101 through PF1.105

System 62 – Meikle Production Shaft Location UTM (Zone 11, NAD 83) m North m East

PF1.101 Skips Discharge - Transfer to Upper Chute

4,539,291 551,831 PF1.102 Upper Chute Discharge Transfer to One of Two Transfer Cars PF1.103 Transfer Cars Discharge - Transfer to One of Two Lower Chutes PF1.104 Bin Loading - Lower Chutes Discharge to One of Two Bins PF1.105 Bins Discharge - Transfer to Haul Truck


Air Pollution Control Equipment a. Emissions from PF1.101 through PF1.104, each, shall be controlled by an enclosure. b. Emissions from PF1.105 shall be controlled by a water spray.


Operating Parameters a. The maximum allowable throughput rate for PF1.101 through PF1.105, each, shall not exceed 1,105.0 tons of ore

or mine rock per any one-hour period, nor more than 3,000,000.0 tons per year, based on a 12-month rolling period. b. Hours

(1) PF1.101 through PF1.105, each, may operate a total of 24 hours per day.


from PF1.101 through PF1.104, each, the following pollutants in excess of the following specified limits: (1) NAC 445B.305 Part 70 Program – The discharge of PM (particulate matter) to the atmosphere shall not

exceed 1.66 pounds per hour, nor more than 2.25 tons per year, based on 12-month rolling period. (2) NAC 445B.305 Part 70 Program – The discharge of PM10 (particulate matter less than or equal to 10 microns



b. The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from PF1.105 the following pollutants in excess of the following specified limits: (1) NAC 445B.305 Part 70 Program – The discharge of PM (particulate matter) to the atmosphere shall not

exceed 0.83 pound per hour, nor more than 1.13 tons per year, based on 12-month rolling period. (2) NAC 445B.305 Part 70 Program – The discharge of PM10 (particulate matter less than or equal to 10 microns



c. NAC 445B.22033 Federally Enforceable SIP Requirement – The maximum allowable discharge of PM10 (particulate matter less than or equal to 10 microns in diameter) to the atmosphere from PF1.101 through PF1.105, each, shall not exceed 78.89 pounds per hour.

d. NAC 445B.22017 Federally Enforceable SIP Requirement – The opacity from PF1.101 through PF1.105, each, shall not equal or exceed 20%.




121

Section VI. Specific Operating Conditions (continued) AE. Emission Units PF1.101 through PF1.105 (continued)


Monitoring The permittee, upon issuance of this operating permit, shall: a. Monitor and record the throughput for PF1.101 through PF1.105, each, on a daily basis. b. Monitor and record the hours of operation for PF1.101 through PF1.105, each, on a daily basis. c. Record the average hourly throughput rate (in tons per hour) for PF1.101 through PF1.105, each, using the daily

throughput and the daily hours of operation. d. Record the throughput rate of ore or mine-rock for PF1.101 through PF1.105, each, on a cumulative monthly

basis, for each 12- month rolling period. e. Conduct and record an observation of visible emissions (excluding water vapor) on PF1.101 through PF1.105 on a


f. Inspect the enclosure installed on PF1.101 through PF1.104 on a monthly basis to confirm that the enclosure is in place and functioning properly. If the enclosure is in disrepair, the Permittee shall initiate corrective action within 24 hours and complete corrective action as expediently as practical to ensure that the enclosure is functioning properly. The Permittee must record each inspection of the enclosures, including the date of each inspection and any corrective actions taken.

g. The Permittee of any affected facility that uses wet suppression to control emissions from the affected facility must perform monthly periodic inspections to check that water is flowing to discharge spray nozzles in the wet suppression system. The Permittee must initiate corrective action within 24 hours and complete corrective action as expediently as practical if the Permittee finds that water is not flowing properly during an inspection of the water spray nozzles. The Permittee must record each inspection of the water spray nozzles, including the date of each inspection and any corrective actions taken.


Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in AE.4. of this section. b. Maintain records of the occurrence and duration of any startup, shutdown, or malfunction in the operation of an





122

Section VI. Specific Operating Conditions (continued) AE. Emission Units PF1.101 through PF1.105 (continued)


Processing Plants (40 CFR Part 60.380) a. On and after the sixtieth day after achieving the maximum production rate at which PF1.101 through PF1.105,

each, will be operated, but not later than 180 days after initial startup, the Permittee shall not discharge or cause the discharge into the atmosphere, the following pollutants in excess of the following specified limits: (1) Process fugitive emissions from PF1.101 through PF1.105, each, will not exceed 10 percent opacity. (40






On and after the sixtieth day after achieving the maximum production rate at which PF1.101 through PF1.105 will be operated, but not later than 180 days after initial startup, the Permittee shall not discharge or cause the discharge into the atmosphere, the following pollutants in excess of the following specified limits: (1) Process fugitive emissions from PF1.101 through PF1.105 will not exceed 10 percent opacity. (40 CFR Part

60.672(b)) (2) The opacity standard set forth in this part shall apply at all times except during period of startup, shutdown,






123

Section VI. Specific Operating Conditions (continued) AF. Emission Units S2.028 and PF1.018

System 63A – Autoclave Silo #1, 250 tons Location UTM (Zone 11, NAD 83) m North m East

S2.028 Autoclave Silo #1, Loading 4,536,039 554,765 PF1.018 Autoclave Silo #1, Discharge 4,536,037 554,762


Air Pollution Control Equipment a. Emissions from S2.028 shall be controlled by a vent filter. b. Emissions PF1.018 shall be controlled by an enclosure c. Descriptive Stack Parameters for S2.028


2. NAC 445B.3405 (NAC 445B.316) Part 70 Program Operating Parameters a. The maximum allowable throughput rate for S2.028 shall not exceed the amount specified in Section VIII of this

operating permit. b. The maximum allowable throughput rate for PF1.018 shall not exceed the amount specified in Section VIII of this

operating permit. c. Hours




exceed the amounts specified in Section VIII of this operating permit. (2) NAC 445B.305 Part 70 Program – The discharge of PM10 (particulate matter less than or equal to 10 microns

in diameter) to the atmosphere shall not exceed the amounts specified in Section VIII of this operating permit. (3) NAC 445B.305 Part 70 Program – The discharge of PM2.5 (particulate matter less than or equal to 2.5

microns in diameter) to the atmosphere shall not exceed the amounts specified in Section VIII of this operating permit.






124

Section VI. Specific Operating Conditions (continued) AF. Emission Units S2.028 and PF1.018 (continued)





in diameter) to the atmosphere shall not the amounts specified in Section VIII of this operating permit. (3) NAC 445B.305 Part 70 Program – The discharge of PM2.5 (particulate matter less than or equal to 2.5






throughput and the daily hours of operation. d. Record the throughput rate of lime or soda ash for S2.028 and PF1.018, each, on a cumulative monthly basis, for







Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in AF.4. of this section.




125

Section VI. Specific Operating Conditions (continued) AG. Emission Units S2.029, S2.030, PF1.019, and PF1.020

System 63B – Autoclave Silo #2 and #3, 500 ton each Location UTM (Zone 11, NAD 83) m North m East

S2.029 Autoclave Silo #2, Loading 4,536,030 554,767 PF1.019 Autoclave Silo #2, Discharge 4,536,028 554,764 S2.030 Autoclave Silo #3, Loading 4,536,020 554,771 PF1.020 Autoclave Silo #3, Discharge 4,536,018 554,768


Air Pollution Control Equipment a. Emissions from S2.029 and S2.030, each, shall be controlled by a vent filter. b. Emissions PF1.019 and PF1.020,e ach, shall be controlled by an enclosure c. Descriptive Stack Parameters for S2.029 and S2.030


2. NAC 445B.3405 (NAC 445B.316) Part 70 Program Operating Parameters a. The maximum allowable throughput rate for S2.029 and S2.030, each, shall not exceed the amount specified in

Section VIII of this operating permit. b. The maximum allowable throughput rate for PF1.019 and PF1.020, each, shall not exceed the amount specified in

Section VIII of this operating permit. c. Hours

(1) S2.029, S2.030, PF1.019, and PF1.020, each, may operate a total of 24 hours per day.


from S2.029 and S2.030, each, the following pollutants in excess of the following specified limits: (1) NAC 445B.305 Part 70 Program – The discharge of PM (particulate matter) to the atmosphere shall not




(4) NAC 445B.22033 Federally Enforceable SIP Requirement – The maximum allowable discharge of PM10 (particulate matter less than or equal to 10 microns in diameter) to the atmosphere from S2.029 and S2.030, each, shall not exceed 50.58 pounds per hour.

(5) NAC 445B.22017 Federally Enforceable SIP Requirement – The opacity from S2.029 and S2.030, each, shall not equal or exceed 20%.




126

Section VI. Specific Operating Conditions (continued) AG. Emission Units S2.029, S2.030, PF1.019, and PF1.020 (continued)



from PF1.019 and PF1.020, each, the following pollutants in excess of the following specified limits: (1) NAC 445B.305 Part 70 Program – The discharge of PM (particulate matter) to the atmosphere shall not




(4) NAC 445B.22033 Federally Enforceable SIP Requirement – The maximum allowable discharge of PM10 (particulate matter less than or equal to 10 microns in diameter) to the atmosphere from PF1.019 and PF1.020, each, shall not exceed 33.8 pounds per hour.

(5) NAC 445B.22017 Federally Enforceable SIP Requirement – The opacity from PF1.019 and PF1.020, each, shall not equal or exceed 20%.


Monitoring The permittee, upon issuance of this operating permit, shall: a. Monitor and record the throughput for S2.029, S2.030, PF1.019, and PF1.020, each, on a daily basis. b. Monitor and record the hours of operation for S2.029, S2.030, PF1.019, and PF1.020, each, on a daily basis. c. Record the average hourly throughput rate (in tons per hour) for S2.029, S2.030, PF1.019, and PF1.020, each, using

the daily throughput and the daily hours of operation. d. Record the throughput rate of lime or soda ash for S2.029, S2.030, PF1.019, and PF1.020, each, on a cumulative

monthly basis, for each 12- month rolling period. e. Conduct and record an observation of visible emissions (excluding water vapor) on the vent filters on a monthly

basis while operating. The observer shall stand at a distance sufficient to provide a clear view of the emissions with the sun oriented to their back. If visible emissions are observed, the Permittee shall conduct and record a Method 9 visible emission test. Each Method 9 visible emission test must be conducted by a certified visible emissions reader in accordance with 40 CFR Part 60, Appendix A.

f. Inspect the vent filter installed on S2.029 and S2.030, each, in accordance with the manufacturer’s operation and maintenance manual and record the results (e.g. the condition of the filter fabric), and any corrective actions taken. If no operation and maintenance manual is available, inspections shall be conducted monthly.

g. Conduct and record an observation of visible emissions (excluding water vapor) on PF1.019 and PF1.020, each, on a monthly basis while operating. The observer shall stand at a distance sufficient to provide a clear view of the emissions with the sun oriented to their back. If visible emissions are observed, the Permittee shall conduct and record a Method 9 visible emission test. Each Method 9 visible emission test shall be conducted by a certified visible emissions reader in accordance with 40 CFR Part 60, Appendix A.

h. Inspect the enclosures installed on PF1.019 and PF1.020, each, on a monthly basis to confirm that the enclosure is in place and functioning properly. If the enclosure is in disrepair, the Permittee shall initiate corrective action within 24 hours and complete corrective action as expediently as practical to ensure that the enclosure is functioning properly. The Permittee must record each inspection of the enclosures, including the date of each inspection and any corrective actions taken.


Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in AG.4. of this section.




127

Section VI. Specific Operating Conditions (continued) AH. Emission Units S2.031 and PF1.021

System 63C – Autoclave Silo #4, 1,000 ton Location UTM (Zone 11, NAD 83) m North m East



Air Pollution Control Equipment a. Emissions from S2.031 shall be controlled by a vent filter. b. Emissions PF1.021 shall be controlled by an enclosure c. Descriptive Stack Parameters for S2.031


2. NAC 445B.3405 (NAC 445B.316) Part 70 Program Operating Parameters a. The maximum allowable throughput rate for S2.031 shall not exceed the amount specified in Section VIII of this

operating permit. b. The maximum allowable throughput rate for PF1.021 shall not exceed the amount specified in Section VIII of this

operating permit. c. Hours












128

Section VI. Specific Operating Conditions (continued) AH. Emission Units S2.031 and PF1.021 (continued)











throughput and the daily hours of operation. d. Record the throughput rate of lime or soda ash for S2.031 and PF1.021, each, on a cumulative monthly basis, for







Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in AH.4. of this section.




129

Section VI. Specific Operating Conditions (continued) AI. Emission Units PF1.001 and PF1.003 through PF1.008.1

System 64 – Mill #1 Primary and Tertiary Crushing Location UTM (Zone 11, NAD 83) m North m East

PF1.001 Ore Hopper Loading

4,536,278 554,890 PF1.003 Jaw Crusher and Associated Transfers In and Out (in from Apron Feeder, out to Conveyor)

PF1.004 Ore Hopper Discharge PF1.005 Cone Crusher and Associated Transfers In and Out (in from Recycle Conveyor

Transfer, out to Cone Outlet Conveyor) 4,536,169 554,622 PF1.005.01 Cone Outlet Conveyor Discharge PF1.006 Conveyor #001 Discharge 4,536,218 554,780 PF1.007 Radial Stacker #002 Discharge 4,536,210 554,772 PF1.008 Conveyor #003 (Mill Inlet) Discharge 4,536,158 554,605 PF1.008.1 4 Apron Feeders Load and Discharge 4,536,210 554,772


Air Pollution Control Equipment a. Emissions from PF1.001, PF1.003, PF1.005, and PF1.007, each, shall be controlled by water sprays. b. Emissions from PF1.004, PF1.005.01, PF1.006, PF1.008, and PF1.008.1, each, shall be controlled by enclosures.

2. NAC 445B.3405 (NAC 445B.316) Part 70 Program Operating Parameters a. The maximum allowable throughput rate for PF1.001, PF1.003, PF1.004, PF1.006, and PF1.007, each, shall not

exceed 1,000.0 tons of ore per any one-hour period, nor more than 5,256,000.0 tons per year, based on a 12-month rolling period.

b. The maximum allowable throughput rate for PF1.005 and PF1.005.01, each, shall not exceed 215.0 tons of ore per any one-hour period, nor more than 1,007,400.0 tons per year, based on a 12-month rolling period.

c. The maximum allowable throughput rate for PF1.008 and PF1.008.1, each, shall not exceed 515.0 tons of ore per any one-hour period, nor more than 4,511,400.0 tons per year, based on a 12-month rolling period.

d. Hours (1) PF1.001 and PF1.003 through PF1.008.1, each, may operate a total of 24 hours per day.









130

Section VI. Specific Operating Conditions (continued) AI. Emission Units PF1.001 and PF1.003 through PF1.008.1 (continued)





in diameter) to the atmosphere shall not exceed 0.54 pound per hour, nor more than 1.42 tons per year, based on 12-month rolling period.


c. The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from PF1.004 and PF1.006, each, the following pollutants in excess of the following specified limits: (1) NAC 445B.305 Part 70 Program – The discharge of PM (particulate matter) to the atmosphere shall not




d. The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from PF1.005 the following pollutants in excess of the following specified limits: (1) NAC 445B.305 Part 70 Program – The discharge of PM (particulate matter) to the atmosphere shall not




e. The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from PF1.005.01 the following pollutants in excess of the following specified limits: (1) NAC 445B.305 Part 70 Program – The discharge of PM (particulate matter) to the atmosphere shall not







131



Emission Limits (continued) f. The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere





g. The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from PF1.008.1 the following pollutants in excess of the following specified limits: (1) NAC 445B.305 Part 70 Program – The discharge of PM (particulate matter) to the atmosphere shall not




h. NAC 445B.22033 Federally Enforceable SIP Requirement – The maximum allowable discharge of PM10 (particulate matter less than or equal to 10 microns in diameter) to the atmosphere from PF1.001, PF1.003, PF1.004, PF1.006, and PF1.007, each, shall not exceed 77.59 pounds per hour.

i. NAC 445B.22033 Federally Enforceable SIP Requirement – The maximum allowable discharge of PM10 (particulate matter less than or equal to 10 microns in diameter) to the atmosphere PF1.005 and PF1.005.1, each, shall not exceed 59.3 pounds per hour.

j. NAC 445B.22033 Federally Enforceable SIP Requirement – The maximum allowable discharge of PM10 (particulate matter less than or equal to 10 microns in diameter) to the atmosphere PF1.008 and PF1.008.1, each, shall not exceed 69.31 pounds per hour.

k. NAC 445B.22017 Federally Enforceable SIP Requirement – The opacity from PF1.001 and PF1.003 through PF1.008.1, each, shall not equal or exceed 20%.


Monitoring The permittee, upon issuance of this operating permit, shall: a. Monitor and record the throughput for PF1.001 and PF1.003 through PF1.008.1, each, on a daily basis. b. Monitor and record the hours of operation for PF1.001 and PF1.003 through PF1.008.1, each, on a daily basis. c. Record the average hourly throughput rate (in tons per hour) for PF1.001 and PF1.003 through PF1.008.1, each,

using the daily throughput and the daily hours of operation. d. Record the throughput rate of ore for PF1.001 and PF1.003 through PF1.008.1, each, on a cumulative monthly

basis, for each 12- month rolling period. e. Conduct and record an observation of visible emissions (excluding water vapor) on PF1.001 and PF1.003 through

PF1.008.1, each, on a monthly basis while operating. The observer shall stand at a distance sufficient to provide a clear view of the emissions with the sun oriented to their back. If visible emissions are observed, the Permittee shall conduct and record a Method 9 visible emission test. Each Method 9 visible emission test shall be conducted by a certified visible emissions reader in accordance with 40 CFR Part 60, Appendix A.




132





g. Inspect the enclosure installed on PF1.004, PF1.005.01, PF1.006, PF1.008, and PF1.008.1 on a monthly basis to confirm that the enclosure is in place and functioning properly. If the enclosure is in disrepair, the Permittee shall initiate corrective action within 24 hours and complete corrective action as expediently as practical to ensure that the enclosure is functioning properly. The Permittee must record each inspection of the enclosures, including the date of each inspection and any corrective actions taken.


Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in AI.4. of this section. b. Maintain records of the occurrence and duration of any startup, shutdown, or malfunction in the operation of an



Processing Plants (40 CFR Part 60.380) a. On and after the sixtieth day after achieving the maximum production rate at which PF1.001, PF1.003 through

PF1.006, PF1.008, and PF1.008.1 will be operated, but not later than 180 days after initial startup, the Permittee shall not discharge or cause the discharge into the atmosphere, the following pollutants in excess of the following specified limits: (1) Process fugitive emissions from PF1.001, PF1.003 through PF1.006, PF1.008, and PF1.008.1, each, will

not exceed 10 percent opacity. (40 CFR Part 60.382(b)) (2) The opacity standard set forth in this part shall apply at all times except during period of startup, shutdown,






133

Section VI. Specific Operating Conditions (continued) AJ. Emission Units PF1.010 through PF1.015.1

System 65 – Mill #2 Primary and Tertiary Crushing Location UTM (Zone 11, NAD 83) m North m East

PF1.010 Stacker Conveyor #304 Discharge 4,536,163 554,781 PF1.011 Transfer into Gyratory Crusher (via dump pocket) 4,536,263 554,908 PF1.012 Gyratory Crusher PF1.013 Conveyor #101(gyratory outlet) Discharge 4,536,211 554,824 PF1.014 Cone Crusher and Associated Transfers In and Out (in from Recycle Conveyor, out

to Conveyor PF1.014.1) 4,536,135 554,651 PF1.014.1 Cone Outlet Conveyor Discharge PF1.015 Conveyor #301 Discharge (mill inlet, includes fully saturated SAG Mill material

from recycle conveyor) 4,536,131 554,617

PF1.015.1 4 Apron Feeders, Load and Discharge 4,536,163 554,781

1. NAC 445B.3405 (NAC 445B.316) Part 70 Program Air Pollution Control Equipment a. Emissions from PF1.010, PF1.011, PF1.012, and PF1.014, each, shall be controlled by water sprays. b. Emissions from PF1.013, PF1.014.1, PF1.015, and PF1.015.1, each, shall be controlled by enclosures.

2. NAC 445B.3405 (NAC 445B.316) Part 70 Program Operating Parameters a. The maximum allowable throughput rate for PF1.010, PF1.011, PF1.012, and PF1.013 each, shall not exceed

1,750.0 tons of ore per any one-hour period, nor more than 15,330,000.0 tons per year, based on a 12-month rolling period.

b. The maximum allowable throughput rate for PF1.014 and PF1.014.1, each, shall not exceed 304.0 tons of ore per any one-hour period, nor more than 2,663,040.0 tons per year, based on a 12-month rolling period.

c. The maximum allowable throughput rate for PF1.015 shall not exceed 925.0 tons of ore per any one-hour period, nor more than 8,103,000.0 tons per year, based on a 12-month rolling period.

d. The maximum allowable throughput rate for PF1.015.1 shall not exceed 821.0 tons of ore per any one-hour period, nor more than 7,191,960.0 tons per year, based on a 12-month rolling period.

e. Hours (1) PF1.010 through PF1.015.1, each, may operate a total of 24 hours per day.









134

Section VI. Specific Operating Conditions (continued) AJ. Emission Units PF1.010 through PF1.015.1 (continued)







c. The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from PF1.013 the following pollutants in excess of the following specified limits: (1) NAC 445B.305 Part 70 Program – The discharge of PM (particulate matter) to the atmosphere shall not








e. The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from PF1.014.1 the following pollutants in excess of the following specified limits: (1) NAC 445B.305 Part 70 Program – The discharge of PM (particulate matter) to the atmosphere shall not







135



Emission Limits (continued) f. The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere





g. The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from PF1.015.1 the following pollutants in excess of the following specified limits: (1) NAC 445B.305 Part 70 Program – The discharge of PM (particulate matter) to the atmosphere shall not




h. NAC 445B.22033 Federally Enforceable SIP Requirement – The maximum allowable discharge of PM10 (particulate matter less than or equal to 10 microns in diameter) to the atmosphere from PF1.010, PF1.011, PF1.012, and PF1.013, each, shall not exceed 85.05 pounds per hour.

i. NAC 445B.22033 Federally Enforceable SIP Requirement – The maximum allowable discharge of PM10 (particulate matter less than or equal to 10 microns in diameter) to the atmosphere PF1.014 and PF1.014.1, each, shall not exceed 63.15 pounds per hour.

j. NAC 445B.22033 Federally Enforceable SIP Requirement – The maximum allowable discharge of PM10 (particulate matter less than or equal to 10 microns in diameter) to the atmosphere PF1.015 shall not exceed 76.58 pounds per hour.

k. NAC 445B.22033 Federally Enforceable SIP Requirement – The maximum allowable discharge of PM10 (particulate matter less than or equal to 10 microns in diameter) to the atmosphere PF1.015.1 shall not exceed 75.06 pounds per hour.

l. NAC 445B.22017 Federally Enforceable SIP Requirement – The opacity from PF1.001 and PF1.003 through PF1.008.1, each, shall not equal or exceed 20%.


Monitoring The permittee, upon issuance of this operating permit, shall: a. Monitor and record the throughput for PF1.010 through PF1.015.1, each, on a daily basis. b. Monitor and record the hours of operation for PF1.010 through PF1.015.1, each, on a daily basis. c. Record the average hourly throughput rate (in tons per hour) for PF1.010 through PF1.015.1, each, using the daily

throughput and the daily hours of operation. d. Record the throughput rate of ore for PF1.010 through PF1.015.1, each, on a cumulative monthly basis, for each

12- month rolling period.




136



Monitoring (continued) The permittee, upon issuance of this operating permit, shall: e. Conduct and record an observation of visible emissions (excluding water vapor) on PF1.010 through PF1.015.1,

each, on a monthly basis while operating. The observer shall stand at a distance sufficient to provide a clear view of the emissions with the sun oriented to their back. If visible emissions are observed, the Permittee shall conduct and record a Method 9 visible emission test. Each Method 9 visible emission test shall be conducted by a certified visible emissions reader in accordance with 40 CFR Part 60, Appendix A.

f. The Permittee of any affected facility that uses wet suppression to control emissions from the affected facility must perform monthly periodic inspections to check that water is flowing to discharge spray nozzles in the wet suppression system. The Permittee must initiate corrective action within 24 hours and complete corrective action as expediently as practical if the Permittee finds that water is not flowing properly during an inspection of the water spray nozzles. The Permittee must record each inspection of the water spray nozzles, including the date of each inspection and any corrective actions taken.

g. Inspect the enclosure installed on PF1.013, PF1.014.1, PF1.015, and PF1.015.1 on a monthly basis to confirm that the enclosure is in place and functioning properly. If the enclosure is in disrepair, the Permittee shall initiate corrective action within 24 hours and complete corrective action as expediently as practical to ensure that the enclosure is functioning properly. The Permittee must record each inspection of the enclosures, including the date of each inspection and any corrective actions taken.


Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in AJ.4. of this section. b. Maintain records of the occurrence and duration of any startup, shutdown, or malfunction in the operation of an



Processing Plants (40 CFR Part 60.380) a. On and after the sixtieth day after achieving the maximum production rate at which PF1.011 through PF1.015.1 will

be operated, but not later than 180 days after initial startup, the Permittee shall not discharge or cause the discharge into the atmosphere, the following pollutants in excess of the following specified limits: (1) Process fugitive emissions from PF1.011 through PF1.015.1, each, will not exceed 10 percent opacity. (40







137

Section VI. Specific Operating Conditions (continued) AK. Emission Unit S2.015

System 66A – Autoclave Circuit - Autoclave #1 Location UTM (Zone 11, NAD 83) m North m East

S2.015 Autoclave #1 (TU4.013 in MOPTC 1041-2221) 4,536,042 554,723

1. NAC 445B.3405 (NAC 445B.316) Part 70 Program Air Pollution Control Equipment a. Emissions from S2.015 shall be controlled by a venturi scrubber. b. Descriptive Stack Parameters for S2.015


2. NAC 445B.3405 (NAC 445B.316) Part 70 Program Operating Parameters a. The maximum allowable throughput rate for S2.015 shall not exceed 130.0 tons of ore per any one-hour period, nor

more than 1,138,800.0 tons per year, based on a 12-month rolling period. b. Hours







e. NAC 445B.305 Part 70 Program-The discharge of H2S (hydrogen sulfide) to the atmosphere shall not exceed 1.50 pounds per hour, nor more than 6.55 tons per year, based on a 12-month rolling period.

f. NAC 445B.22033 Federally Enforceable SIP Requirement – The maximum allowable discharge of PM10 (particulate matter less than or equal to 10 microns in diameter) to the atmosphere from S2.015 shall not exceed 53.95 pounds per hour.

g. NAC 445B.22017 Federally Enforceable SIP Requirement – The opacity from S2.015 shall not equal or exceed 20%.




138

Section VI. Specific Operating Conditions (continued) AK. Emission Unit S2.015 (continued)


Performance Testing The Permittee, upon issuance of this operating permit, shall conduct annual performance testing within 90 days of the anniversary date of the previous initial performance testing or annual performance testing, and annually thereafter, in accordance with the following: a. All performance and opacity tests must comply with the advance notification, protocol review, operational






f. Method 6 in Appendix A of 40 CFR Part 60 shall be used to determine the sulfur dioxide concentration. Each test will be run for a minimum of one hour.

g Method 15, or Method 320, in Appendix A of 40 CFR Part 60 shall be used to determine the H2S (hydrogen sulfide) concentration. Each test will be run for a minimum of one hour.



Monitoring The permittee, upon issuance of this operating permit, shall: a. Monitor and record the throughput for S2.015 on a daily basis. b. Monitor and record the hours of operation for S2.015 on a daily basis. c. Record the average hourly throughput rate (in tons per hour) for S2.015 using the daily throughput and the daily

hours of operation. d. Record the throughput rate of ore for S2.015 on a cumulative monthly basis, for each 12- month rolling period. e. Install, calibrate, operate, and maintain devices for the measurement of the pressure drop and water flow rate through

the venturi scrubber. f. Monitor and record the pressure drop and water flow rate through the venturi scrubber. Record any occurrence when

the pressure drop or water flow rate falls outside the specified operating range. The operating range will be determined by the Permittee based on operating experience and the manufacture’s recommendations.

g. Conduct and record an observation of visible emissions (excluding water vapor) on the wet scrubber on a monthly basis while operating. The observer shall stand at a distance sufficient to provide a clear view of the emissions with the sun oriented to their back. If visible emissions are observed, the Permittee shall conduct and record a Method 9 visible emission test. Each Method 9 visible emission test shall be conducted by a certified visible emissions reader in accordance with 40 CFR Part 60, Appendix A.




139

Section VI. Specific Operating Conditions (continued) AK. Emission Unit S2.015 (continued)


Monitoring (continued) The permittee, upon issuance of this operating permit, shall: h. Inspect the wet scrubber installed on S2.015 in accordance with the manufacturer’s operation and maintenance

manual and record the results (e.g. the condition of the water spray nozzles), and any corrective actions taken. If no operation and maintenance manual is available, inspections shall be conducted monthly.


Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in AK.5. of this section.





140

Section VI. Specific Operating Conditions (continued) AL. Emission Units S2.016 and S2.017

System 66B – Autoclave Circuit - Autoclave #2 and Autoclave #3 Location UTM (Zone 11, NAD 83) m North m East

S2.016 Autoclave #2 (TU4.014 in MOPTC 1041-2221) 4,536,082 554,709 S2.017 Autoclave #3 (TU4.015 in MOPTC 1041-2221)

1. NAC 445B.3405 (NAC 445B.316) Part 70 Program Air Pollution Control Equipment a. Emissions from S2.016 and S2.017, each, shall be controlled by a venturi scrubber. b. S2.016 and S2.017 shall each have their own venturi scrubber, but will share a common stack. c. Descriptive Stack Parameters for System 66B


2. NAC 445B.3405 (NAC 445B.316) Part 70 Program Operating Parameters a. The maximum allowable throughput rate for S2.016 and S2.017, each, shall not exceed 200.0 tons of ore per any



3. NAC 445B.3405 (NAC 445B.316) Part 70 Program Emission Limits The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from S2.016 and S2.017, combined, the following pollutants in excess of the following specified limits: a. NAC 445B.305 Part 70 Program – The discharge of PM (particulate matter) to the atmosphere shall not exceed 7.00






f. NAC 445B.22033 Federally Enforceable SIP Requirement – The maximum allowable discharge of PM10 (particulate matter less than or equal to 10 microns in diameter) to the atmosphere from S2.016 and S2.017, each, shall not exceed 58.51 pounds per hour.

g. NAC 445B.22017 Federally Enforceable SIP Requirement – The opacity from System 66B shall not equal or exceed 20%.




141

Section VI. Specific Operating Conditions (continued) AL. Emission Units S2.016 and S2.017 (continued)








f. Method 6 in Appendix A of 40 CFR Part 60 shall be used to determine the sulfur dioxide concentration. Each test will be run for a minimum of one hour.





and the daily hours of operation. d. Record the throughput rate of ore for S2.016 and S2.017, each, on a cumulative monthly basis, for each 12- month

rolling period. e. Install, calibrate, operate, and maintain devices for the measurement of the pressure drop and water flow rate through

the venturi scrubbers. f. Monitor and record the pressure drop and water flow rate through the venturi scrubbers. Record any occurrence when

the pressure drop or water flow rate falls outside the specified operating range. The operating range will be determined by the Permittee based on operating experience and the manufacture’s recommendations.

g. Conduct and record an observation of visible emissions (excluding water vapor) on the exhaust stack of System 66B on a monthly basis while operating. The observer shall stand at a distance sufficient to provide a clear view of the emissions with the sun oriented to their back. If visible emissions are observed, the Permittee shall conduct and record a Method 9 visible emission test. Each Method 9 visible emission test shall be conducted by a certified visible emissions reader in accordance with 40 CFR Part 60, Appendix A.




142

Section VI. Specific Operating Conditions (continued) AL. Emission Units S2.016 and S2.017 (continued)


Monitoring (continued) The permittee, upon issuance of this operating permit, shall: h. Inspect the wet scrubbers installed on S2.016 and S2.017 in accordance with the manufacturer’s operation and

maintenance manual and record the results (e.g. the condition of the water spray nozzles), and any corrective actions taken. If no operation and maintenance manual is available, inspections shall be conducted monthly.


Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in AL.5. of this section.





143

Section VI. Specific Operating Conditions (continued) AM. Emission Units S2.018 through S2.020

System 66C – Autoclave Circuit - Autoclave #4, Autoclave #5, and Autoclave #6 Location UTM (Zone 11, NAD 83) m North m East

S2.018 Autoclave #4 (TU4.016 in MOPTC 1041-2221) 4,535,952 554,722 S2.019 Autoclave #5 (TU4.017 in MOPTC 1041-2221)

S2.020 Autoclave #6 (TU4.018 in MOPTC 1041-2221)

1. NAC 445B.3405 (NAC 445B.316) Part 70 Program Air Pollution Control Equipment a. Emissions from S2.018 shall be ducted to venturi scrubber VS-004, Emissions from S2.019 shall be ducted to venturi

scrubber VS-005, and emissions from S2.020 shall be ducted to venturi scrubber VS-005. b. Emissions from VS-004, VS-005, and VS-006 shall be ducted to a secondary venturi scrubber VS-007. c. Following VS-007 emissions shall be ducted to a scrubber mist eliminator, gas cooling tower, condenser, wet gas

separator, and a carbon filter consisting of two trains of beds with each train containing a primary and secondary bed. d. Descriptive Stack Parameters for System 66C


2. NAC 445B.3405 (NAC 445B.316) Part 70 Program Operating Parameters a. The maximum allowable throughput rate for S2.018 through S2.020, each, shall not exceed 200.0 tons of ore per

any one-hour period, nor more than 1,752,000.0 tons per year, based on a 12-month rolling period. b. Hours


3. NAC 445B.3405 (NAC 445B.316) Part 70 Program Emission Limits The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from System 66C the following pollutants in excess of the following specified limits: a. NAC 445B.305 Part 70 Program – The discharge of PM (particulate matter) to the atmosphere shall not exceed 2.00






f. NAC 445B.22033 Federally Enforceable SIP Requirement – The maximum allowable discharge of PM10 (particulate matter less than or equal to 10 microns in diameter) to the atmosphere from S2.018 through S2.020, each, shall not exceed 58.51 pounds per hour.

g. NAC 445B.22017 Federally Enforceable SIP Requirement – The opacity from System 66B shall not equal or exceed 20%.




144

Section VI. Specific Operating Conditions (continued) AM. Emission Units S2.018 through S2.020 (continued)












Monitoring The permittee, upon issuance of this operating permit, shall: a. Monitor and record the throughput for S2.018 through S2.020, each, on a daily basis. b. Monitor and record the hours of operation for S2.018 through S2.020, each, on a daily basis. c. Record the average hourly throughput rate (in tons per hour) for S2.018 through S2.020, each, using the daily

throughput and the daily hours of operation. d. Record the throughput rate of ore for S2.018 through S2.020, each, on a cumulative monthly basis, for each 12-

month rolling period. e. Conduct and record an observation of visible emissions (excluding water vapor) on the exhaust stack of System 66C

on a monthly basis while operating. The observer shall stand at a distance sufficient to provide a clear view of the emissions with the sun oriented to their back. If visible emissions are observed, the Permittee shall conduct and record a Method 9 visible emission test. Each Method 9 visible emission test shall be conducted by a certified visible emissions reader in accordance with 40 CFR Part 60, Appendix A.

f. Inspect the wet scrubbers installed on S2.018 through S2.020 in accordance with the manufacturer’s operation and maintenance manual and record the results (e.g. the condition of the water spray nozzles), and any corrective actions taken. If no operation and maintenance manual is available, inspections shall be conducted monthly.




145

Section VI. Specific Operating Conditions (continued) AM. Emission Units S2.018 through S2.020 (continued)


Monitoring (continued) The permittee, upon issuance of this operating permit, shall: g. Install, calibrate, operate, and maintain a devices for the measurement of pressure drop across each venturi scrubber. h. Install, calibrate, operate, and maintain a devices for the measurement of water flow rate to each venturi scrubbers. i. Monitor and record the pressure drop across each venturi scrubber once per day during operation. j. Monitor and record the water flow rate to each venturi scrubber once per day during operation.


Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in AM.5. of this section.





146

Section VI. Specific Operating Conditions (continued) AN. Emission Units S2.009 through S2.011, and S2.341

System 67 – Mercury Retorts Location UTM (Zone 11, NAD 83) m North m East

S2.009 Mercury Retort #1 (TU4.019 in MOPTC 1041-2221)

4,536,176 554,526 S2.010 Mercury Retort #2 (TU4.020 in MOPTC 1041-2221) S2.011 Mercury Retort #3 (TU4.021 in MOPTC 1041-2221) S2.341 Mercury Retort #4 (TU4.025 in MOPTC 1041-2221)


Air Pollution Control Equipment a. Emissions from S2.009 through S2.011, and S2.341, each, shall be ducted to a contact condenser. b. Emissions from the contact condensers shall be combined and ducted to a SO2 scrubber and carbon filter (CA-

003). c. Descriptive Stack Parameters

Stack Height: 85 feet Stack Diameter: 1.0 foot Stack Temperature: 190°F Volume Flow Rate: 400 dry standard cubic feet per minute (dscfm)


Operating Parameters a. The maximum batch weight for S2.009 through S2.011, and S2.341, each, shall not exceed 0.6 ton of precious

metal bearing material. Precious metal bearing material shall consist only of the following: (1) Material that is loaded with gold along with various other metals (such as silver, copper, and mercury) and

substances that is produced by electrowinning, the Merrill-Crowe process, flotation and gravity separation processes, and other gold concentration and precipitation processes;

(2) Material collected from the wash down of any equipment or surfaces contacted with precious metals that have accumulated through the concentration methods employed by the Permittee:

(3) Baghouse bags and filter press bags containing precious metal from the refinery process/building. b. Hours

(1) S2.009 through S2.011, and S2.341, each, may operate a total of 24 hours per day. 3. NAC 445B.3405 (NAC 445B.316) Part 70 Program

Emission Limits The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from System 67 the following pollutants in excess of the following specified limits: a. NAC 445B.305 Part 70 Program – The discharge of PM (particulate matter) to the atmosphere shall not exceed 0.11

pound per hour, nor more than 0.48 ton per 12-month rolling period. b. NAC 445B.305 Part 70 Program – The discharge of PM10 (particulate matter less than or equal to 10 microns in

diameter) to the atmosphere shall not exceed 0.11 pound per hour, nor more than 0.48 ton per 12-month rolling period.

c. NAC 445B.305 Part 70 Program – The discharge of PM2.5 (particulate matter less than or equal to 2.5 microns in diameter) to the atmosphere shall not exceed 0.11 pound per hour, nor more than 0.48 ton per 12-month rolling period.


e. NAC 445B.22033 Federally Enforceable SIP Requirement -The maximum allowable discharge of PM10 to the atmosphere final exhaust stack of S2.009 through S2.011 and S2.341, each, shall not exceed 2.91 pounds per hour.

f. NAC 445B.22017 Federally Enforceable SIP Requirement - The opacity from the final exhaust stack of System 67 shall not equal or exceed 20%.




147


AN. Emission Units S2.009 through S2.011, and S2.341 (continued)

4. NAC 445B.3405 and NAC 445B.316) Part 70 Program Performance Testing The Permittee, upon issuance of this operating permit, shall conduct renewal performance testing at least 90 days prior to the expiration of this operating permit, but no earlier than 365 days from the date of expiration of this operating permit, and every 5 years thereafter, in accordance with the following: a. All performance and opacity tests must comply with the advance notification, protocol review, operational


b. Testing shall be conducted on the exhaust stack (post controls). c. Method 6C in Appendix A of 40 CFR Part 60 shall be used to determine the sulfur dioxide concentration. Each test




Monitoring The permittee upon issuance of this operating permit shall: a. Monitor and record the hours of operation for S2.009 through S2.011, and S2.341, each, on a daily basis. b. Monitor and record the throughput per batch (in tons) precious metal bearing material processed in S2.009

through S2.011, and S2.341, each, on a daily basis.

6. NAC 445B.3405 (NAC 445B.316) Part 70 Program Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in AN.5. of this section.






148


AN. Emission Units S2.009 through S2.011 and S2.341 (continued) 7. 40 CFR Part 64 – Compliance Assurance Monitoring (CAM) (40 CFR 64.1, et.seq.)

a. Upon issuance of this operating permit, Permittee shall conduct monitoring, recordkeeping, and reporting for the SO2 scrubber as listed in Table AN-1 below:

Table AN-1:

Part 64 CAM Monitoring for SO2 Scrubber CAM Performance

Indicator===> Scrubber Liquid pH Scrubber Liquid Flow

Measurement Approach Monitor and record the SO2 scrubber liquid pH once daily for each day of operation.

Monitor and record the SO2 scrubber liquid flow rate once daily for each day of operation.

Indicator Range An excursion is defined as a scrubber liquid pH reading (described above) of less than the manufacturer’s recommendation. Excursions trigger an inspection, corrective action, and a reporting requirement.

An excursion is defined as a scrubber liquid flow rate (described above) of less than the manufacturer’s recommendation. Excursions trigger an inspection, corrective action, and a reporting requirement.

Measurement Locations The scrubber liquid pH sensor is located in the scrubber liquid recirculation line.

The scrubber liquid flow rate sensor is located on the scrubber recirculation line.


Annually Annually


The accuracy of the pH meter is checked and maintained per the manufacturer’s recommendations.

The accuracy of the flow meter is checked and maintained per the manufacturer’s recommendations.

Monitoring Frequency A one-hour average reading of the scrubber liquid pH is conducted and recorded daily.

A one-hour average reading of the scrubber liquid flow rate is conducted and recorded daily.


The scrubber liquid pH is automatically recorded daily.

The scrubber liquid flow rate is automatically recorded daily.

Averaging Periods One-hour average based on at least one reading. One-hour average based on at least one reading.








149

Section VI. Specific Operating Conditions (continued) AO. Emission Units S2.013, S2.014, and S2.344

System 68 – Furnaces Location UTM (Zone 11, NAD 83) m North m East

S2.013 West Melting Furnace (TU4.022 in MOPTC 1041-2221) 4,536,180 554,542 S2.014 East Melting Furnace (TU4.023 in MOPTC 1041-2221)

S2.344 Electrowinning Cells (TU4.024 in MOPTC 1041-2221)

1. NAC 445B.3405 (NAC 445B.316) Part 70 Program Air Pollution Control Equipment a. Emissions from S2.013 and S2.014 shall be ducted to a baghouse followed by a SO2 scrubber. b. Emissions from S2.013, S2.014, and S2.344 shall be combined and ducted to a carbon filter. c. Descriptive Stack Parameters

Stack Height: 85 feet Stack Diameter: 1.46 feet Stack Temperature: 140°F Volume Flow Rate: 9,100 dry standard cubic feet per minute (dscfm)


Operating Parameters a. The maximum batch weight for S2.013 and S2.014, combined, shall not exceed 0.4 ton of retorted precious metal

bearing material and flux, nor more than 876.0 tons per year, based on a 12-month rolling period. Precious metal bearing material shall consist only of the following material defined under Section V.AN.2.a.(1) through (3) which has been retorted.

b. The maximum allowable throughput rate of solution for S2.344 shall not exceed 35.0 gallons per minute. c. Hours

(1) S2.013, S2.014, and S2.344, each, may operate a total of 24 hours per day. 3. NAC 445B.3405 (NAC 445B.316) Part 70 Program

Emission Limits The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from S2.013, S2.014, and S2.344, combined, the following pollutants in excess of the following specified limits: a. NAC 445B.305 Part 70 Program – The discharge of PM (particulate matter) to the atmosphere shall not exceed 2.80

pounds per hour, nor more than 3.07 tons per 12-month rolling period. b. NAC 445B.305 Part 70 Program – The discharge of PM10 (particulate matter less than or equal to 10 microns in

diameter) to the atmosphere shall not exceed 2.80 pounds per hour, nor more than 3.07 tons per 12-month rolling period.

c. NAC 445B.305 Part 70 Program – The discharge of PM2.5 (particulate matter less than or equal to 2.5 microns in diameter) to the atmosphere shall not exceed 2.80 pounds per hour, nor more than 3.07 tons per 12-month rolling period.


e. NAC 445B.22033 Federally Enforceable SIP Requirement -The maximum allowable discharge of PM10 (particulate matter less than or equal to 10 microns in diameter) to the atmosphere final exhaust stack of S2.013 and S2.014, each, shall not exceed 2.22 pounds per hour.

f. NAC 445B.22017 Federally Enforceable SIP Requirement - The opacity from the final exhaust stack of System 67 shall not equal or exceed 20%.




150


AO. Emission Units S2.013, S2.014, and S2.344 (continued)

4. NAC 445B.3405 and NAC 445B.316) Part 70 Program Performance Testing The Permittee, upon issuance of this operating permit, shall conduct renewal performance testing at least 90 days prior to the expiration of this operating permit, but no earlier than 365 days from the date of expiration of this operating permit, and every 5 years thereafter, in accordance with the following: a. All performance and opacity tests must comply with the advance notification, protocol review, operational







g. Method 9 in Appendix A of 40 CFR Part 60 shall be used to determine opacity. Opacity observations shall be conducted concurrently with the applicable performance test. The minimum total time of observations shall be six minutes (24 consecutive observations recorded at 15 second intervals), unless otherwise specified by an applicable subpart.


Monitoring The permittee, upon issuance of this operating permit, shall: a. Monitor and record the throughput rate (in tons) retorted precious metal bearing material and flux processed in

S2.013 and S2.014, combined, on a daily basis. b. Monitor and record the hours of operation for S2.009 through S2.011 and S2.341, each, on a daily basis. c. Monitor and record a reading of the throughput rate of solution (in gallons per minute), for S2.341 on a daily basis. d. Record the throughput rate of retorted precious metal bearing material and flux for S2.013 and S2.014,

combined, on a cumulative monthly basis, for each 12- month rolling period. e. Conduct and record an observation of visible emissions (excluding water vapor) on the final exhaust stack

controlling S2.013 and S2.014 on a monthly basis while operating. The observer shall stand at a distance sufficient to provide a clear view of the emissions with the sun oriented to their back. If visible emissions are observed, the Permittee shall conduct and record a Method 9 visible emission test. Each Method 9 visible emission test must be conducted by a certified visible emissions reader in accordance with 40 CFR Part 60, Appendix A.

f. Inspect the baghouse installed on S2.013 and S2.014 in accordance with the manufacturer’s operation and maintenance manual and record the results (e.g. the condition of the filter fabric), and any corrective actions taken. If no operation and maintenance manual is available, inspections shall be conducted monthly.

g. Monitor and record the wet SO2 scrubber liquor pH and flow rate once daily for each day of operation.




151

Section VI. Specific Operating Conditions (continued) AO. Emission Units S2.013, S2.014, and S2.344 (continued)


Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in AO.5. of this section.






152

Section VI. Specific Operating Conditions (continued) AP. Emission Units S2.033.1 through S2.033.4

System 69 – Analytical Laboratory Sample Preparation Location UTM (Zone 11, NAD 83) m North m East

S2.033.1 Crushers (5)

4,535,953 554,386 S2.033.2 Pulverizers (4) S2.033.3 Sample Reject Conveyor S2.033.4 Process Prep Pulverizer


Air Pollution Control Equipment a. Emissions from S2.033.1 through S2.033.4 shall be controlled by a baghouse. b. Descriptive Stack Parameters for System 69


2. NAC 445B.3405 (NAC 445B.316) Part 70 Program Operating Parameters a. The maximum allowable throughput rate for S2.033.1 through S2.033.4, combined, shall not exceed 3.876 tons of

gold ore and mine rock samples per any one-hour period, nor more than 33,954.0 tons per year, based on a 12-month rolling period.

b. Hours (1) S2.033.1 through S2.033.4, each, may operate a total of 24 hours per day.

3. NAC 445B.3405 (NAC 445B.316) Part 70 Program Emission Limits The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from the stack of S2.033.1 through S2.033.4, combined, the following pollutants in excess of the following specified limits: a. NAC 445B.305 Part 70 Program – The discharge of PM (particulate matter) to the atmosphere shall not exceed 1.05




d. NAC 445B.22033 Federally Enforceable SIP Requirement – The maximum allowable discharge of PM10 (particulate matter less than or equal to 10 microns in diameter) to the atmosphere from S2.033.1 through S2.033.4, combined, shall not exceed 10.16 pounds per hour.

e. NAC 445B.22017 Federally Enforceable SIP Requirement – The opacity from the stack of S2.033.1 through S2.033.4 shall not equal or exceed 20%.


Monitoring The permittee, upon issuance of this operating permit, shall: a. Monitor and record the throughput for S2.033.1 through S2.033.4, combined, on a daily basis. b. Monitor and record the hours of operation for S2.033.1 through S2.033.4, each, on a daily basis. c. Record the average hourly throughput rate (in tons per hour) for S2.033.1 through S2.033.4, combined, using the

daily throughput and the daily hours of operation.




153

Section VI. Specific Operating Conditions (continued) AP. Emission Units S2.033.1 through S2.033.4 (continued)


Monitoring (continued) The permittee, upon issuance of this operating permit, shall: d. Record the throughput rate of gold ore and mine rock samples for S2.033.1 through S2.033.4, combined, on a

cumulative monthly basis, for each 12- month rolling period. e. Conduct and record an observation of visible emissions (excluding water vapor) on the baghouse controlling




Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in AP.4. of this section.




154

Section VI. Specific Operating Conditions (continued) AQ. Emission Units S2.051.1 through S2.051.8

System 70 – Analytical Laboratory - Fire Assay Facility Location UTM (Zone 11, NAD 83) m North m East

S2.051.1 Assay Furnaces (7)

4,535,953 554,386

S2.051.2 Tumbler #1 S2.051.3 Fluxing Hoods (2) S2.051.4 Drag Conveyor S2.051.5 Furnace Tables (5) S2.051.6 Waste Crusher S2.051.7 Tumbler #2 S2.051.8 Bench Top Roasting Furnace



Stack Height: 39.0 feet Stack Diameter: 3.42 feet Stack Temperature: 95.7° Exhaust Flow: 26,500 dry standard cubic feet per minute (dscfm)

2. NAC 445B.3405 (NAC 445B.316) Part 70 Program Operating Parameters a. The maximum allowable throughput rate for S2.051.1 through S2.051.8, combined, shall not exceed 0.468 ton of

assay samples per any one-hour period, nor more than 4,099.7 tons per year, based on a 12-month rolling period. b. Hours







e. NAC 445B.22017 Federally Enforceable SIP Requirement – The opacity from the stack of S2.051.1 through S2.051.8 shall not equal or exceed 20%.


Monitoring The permittee, upon issuance of this operating permit, shall: a. Monitor and record the throughput for S2.051.1 through S2.051.8, combined, on a daily basis.




155

Section VI. Specific Operating Conditions (continued) AQ. Emission Units S2.051.1 through S2.051.6 (continued)


Monitoring (continued) The permittee, upon issuance of this operating permit, shall: b. Monitor and record the hours of operation for S2.051.1 through S2.051.8, each, on a daily basis. c. Record the average hourly throughput rate (in tons per hour) for S2.051.1 through S2.051.8, combined, using the

daily throughput and the daily hours of operation. d. Record the throughput rate of assay samples for S2.051.1 through S2.051.8, combined, on a cumulative monthly

basis, for each 12- month rolling period. e. Conduct and record an observation of visible emissions (excluding water vapor) on the baghouse controlling




Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in AQ.4. of this section.




156

Section VI. Specific Operating Conditions (continued) AR. Emission Units S2.067.1 through S2.067.5

System 71 – Metallurgical Laboratory Sample Preparation Location UTM (Zone 11, NAD 83) m North m East

S2.067.1 Crushers (2)

4,535,989 554,349 S2.067.2 Grind Mills (4) S2.067.3 Pulverizers (2) S2.067.4 Tumblers (V-Blenders) (2) S2.067.5 Ventilation Hoods (4)




2. NAC 445B.3405 (NAC 445B.316) Part 70 Program Operating Parameters a. The maximum allowable throughput rate for S2.067.1 through S2.067.5, combined, shall not exceed 0.21 ton of

gold ore and mine rock samples per any one-hour period, nor more than 1,840.0 tons per year, based on a 12-month rolling period.







e. NAC 445B.22017 Federally Enforceable SIP Requirement – The opacity from the stack of the baghouse shall not equal or exceed 20%.


Monitoring The permittee, upon issuance of this operating permit, shall: a. Monitor and record the throughput for S2.067.1 through S2.067.5, combined, on a daily basis. b. Monitor and record the hours of operation for S2.067.1 through S2.067.5, each, on a daily basis.




157

Section VI. Specific Operating Conditions (continued) AR. Emission Units S2.067.1 through S2.067.5 (continued)


Monitoring (continued) The permittee, upon issuance of this operating permit, shall: c. Record the average hourly throughput rate (in tons per hour) for S2.067.1 through S2.067.5, combined, using the

daily throughput and the daily hours of operation. d. Record the throughput rate of gold ore and mine rock samples for S2.067.1 through S2.067.5, combined, on a

cumulative monthly basis, for each 12- month rolling period. e. Conduct and record an observation of visible emissions (excluding water vapor) on the baghouse controlling




Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in AR.4. of this section.




158

Section VI. Specific Operating Conditions (continued) AS. Emission Units S2.074.1 through S2.074.3

System 72 – Metallurgical Laboratory - Fire Assay Facility Location UTM (Zone 11, NAD 83) m North m East

S2.074.1 Bench Top Roasters (2) 4,535,989 554,349 S2.074.2 Crushers (2)

S2.074.3 Pulverizers (2)

1. NAC 445B.3405 (NAC 445B.316) Part 70 Program Air Pollution Control Equipment a. Emissions from S2.074.1 through S2.074.3 shall be controlled by a baghouse. b. Descriptive Stack Parameters for System 72


2. NAC 445B.3405 (NAC 445B.316) Part 70 Program Operating Parameters a. The maximum allowable throughput rate for S2.074.1 through S2.074.3, combined, shall not exceed 3.89 tons of

assay samples per any one-hour period, nor more than 34,076.4 tons per year, based on a 12-month rolling period. b. Hours







e. NAC 445B.22033 Federally Enforceable SIP Requirement – The maximum allowable discharge of PM10 (particulate matter less than or equal to 10 microns in diameter) to the atmosphere from S2.074.1 through S2.074.3, combined, shall not exceed 10.19 pounds per hour.

f. NAC 445B.22017 Federally Enforceable SIP Requirement – The opacity from the stack of S2.074.1 through S2.074.3 shall not equal or exceed 20%.


Monitoring The permittee, upon issuance of this operating permit, shall: a. Monitor and record the throughput for S2.074.1 through S2.074.3, combined, on a daily basis. b. Monitor and record the hours of operation for S2.074.1 through S2.074.3, each, on a daily basis.




159

Section VI. Specific Operating Conditions (continued) AS. Emission Units S2.074.1 through S2.074.3 (continued)


Monitoring (continued) The permittee, upon issuance of this operating permit, shall: c. Record the average hourly throughput rate (in tons per hour) for S2.074.1 through S2.074.3, combined, using the

daily throughput and the daily hours of operation. d. Record the throughput rate of assay samples for S2.074.1 through S2.074.3, combined, on a cumulative monthly

basis, for each 12- month rolling period. e. Conduct and record an observation of visible emissions (excluding water vapor) on the baghouse controlling




Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in AS.4. of this section.




160

Section VI. Specific Operating Conditions (continued) AT. Emission Units S2.025 through S2.027

System 74 – Propane Vaporizers Location UTM (Zone 11, NAD 83) m North m East

S2.025 Propane Vaporizer #1 4,536,038 554,900 S2.026 Propane Vaporizer #2 4,536,029 554,904 S2.027 Propane Vaporizer #3 4,536,020 554,907


Air Pollution Control Equipment a. Emissions from S2.025 through S2.027 shall be uncontrolled. b. S2.025 through S2.027 shall each have their own stack c. Descriptive Stack Parameters for S2.025 through S2.027, each



Operating Parameters a. S2.025 through S2.027, each, may consume only propane. b. The maximum allowable fuel consumption rate for S2.025 through S2.027, each, shall not exceed 50.3 gallons of

propane per any one-hour period, nor more than 440,393.0 gallons per year, based on a 12-month rolling period. c. Hours


3. NAC 445B.3405 (NAC 445B.316) Part 70 Program Emission Limits The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from S2.025 through S2.027, each, the following pollutants in excess of the following specified limits: a. NAC 445B.305 Part 70 Program – The discharge of PM (particulate matter) to the atmosphere shall not exceed








h. NAC 445B.2203 Federally Enforceable SIP Requirement – The maximum allowable discharge of PM10 (particulate matter less than or equal to 10 microns in diameter) to the atmosphere from S2.025 through S2.027, each, shall not exceed 0.60 pound per MMBtu.




161

Section VI. Specific Operating Conditions (continued) AT. Emission Units S2.025 through S2.027 (continued)


Emission Limits (continued) The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from S2.025 through S2.027, each, the following pollutants in excess of the following specified limits: i. NAC 445B.22017 Federally Enforceable SIP Requirement – The opacity from S2.025 through S2.027, each, shall

not equal or exceed 20%. j. NAC 445B.22047 Federally Enforceable SIP Requirement – The maximum allowable discharge of Sulfur to the

atmosphere from S2.025 through S2.027, each, shall not exceed 3.22 pounds per hour.

4. NAC 445B.3405 (NAC 445B.316) Part 70 Program Monitoring The permittee, upon issuance of this operating permit, shall: a. Monitor and record the hours of operation while consuming propane for S2.025 through S2.027, each, on a daily

basis. b. Monitor and record the consumption rate of propane on a daily basis for S2.025 through S2.027, each, (in gallons). c. Record the consumption rate of propane (in gallons) for S2.025 through S2.027, each, on a cumulative monthly

basis, for each 12-month rolling period.

5. NAC 445B.3405 (NAC 445B.316) Part 70 Program Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in AT.4. of this section.




162

Section VI. Specific Operating Conditions (continued) AU. Emission Units S2.080 through S2.082

System 75 – Fuel Storage Tanks Location UTM (Zone 11, NAD 83) m North m East

S2.080 Fuel Oil Storage Tank, 250,000 gallons 4,537,099 552,660 S2.081 Fuel Oil Storage Tank, 150,000 gallons 4,536,426 554,605 S2.082 Gasoline Storage Tank, 12,000 gallons 4,536,050 554,238


Air Pollution Control Equipment a. S2.080 through S2.083, each, are controlled using submerged fill. b. Descriptive Stack Parameters for S2.080

Shell Diameter: 45 feet Stack Height: 24 feet Capacity: 250,000 gallons

c. Descriptive Stack Parameters for S2.081 Shell Diameter: 32 feet Stack Height: 32 feet Capacity: 150,000 gallons

d. Descriptive Stack Parameters for S2.082 Shell Diameter: 8 feet Stack Height: 32 feet Capacity: 12,000 gallons

2. NAC 445B.3405 (NAC 445B.316) Part 70 Program Operating Parameters a. S2.080 and S2.081, each, shall only be used to store #2 fuel oil. b. S2.082 shall only be used to store gasoline. c. The maximum allowable throughput rate for S2.080 shall not exceed more than 25,000,000.0 gallons per year, based

on a 12-month rolling period. d. The maximum allowable throughput rate for S2.081 shall not exceed more than 5,600,000.0 gallons per year, based

on a 12-month rolling period. e. The maximum allowable throughput rate for S2.082 shall not exceed more than 530,000.0 gallons per year, based on

a 12-month rolling period. f. Hours

S2.080 through S2.082, each, may operate a total of 24 hours per day.

3. NAC 445B.3405 (NAC 445B.316) Part 70 Program Emission Limits The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from S2.080 through S2.082, each, the following pollutants in excess of the following specified limits: a. NAC 445B.305 Part 70 Program – The discharge of VOCs (volatile organic compounds) to the atmosphere from

S2.080 shall not exceed more than 0.13 ton per year, based on 12-month rolling period. b. NAC 445B.305 Part 70 Program – The discharge of VOCs (volatile organic compounds) to the atmosphere from

S2.081 shall not exceed more than 0.076 ton per year, based on 12-month rolling period. c. NAC 445B.305 Part 70 Program – The discharge of VOCs (volatile organic compounds) to the atmosphere from

S2.082 shall not exceed more than 2.80 tons per year, based on 12-month rolling period. d. NAC 445B.22017 Federally Enforceable SIP Requirement – The opacity from S2.080 through S2.082, each, shall

not equal or exceed 20%.




163

Section VI. Specific Operating Conditions (continued) AU. Emission Units S2.080 through S2.082 (continued)


Monitoring The permittee, upon issuance of this operating permit, shall: a. Monitor and record the throughput, in gallons, loaded into, or dispensed from, S2.080 through S2.082, each, on a

monthly basis, as determined from vendor invoices for tank loading or fuel pump non-resettable meter for tank dispensing.

b. Monitor and record the total yearly throughput rate in gallons per year. The annual throughput shall be determined at the end of each month as the sum of the monthly throughput rates for the year for all previous months of that year.

5. Federal Requirements (NAC 445B.3405(1), NAC 445B.252(1)) (Federally Enforceable SIP Requirement)

National Emission Standards for Hazardous Air Pollutants (NESHAP) – 40 CFR Part 63 Subpart CCCCCC – for Gasoline Dispensing Facilities The permittee upon issuance of this operating permit, for S2.082, shall: a. Permittee must, at all times, operate and maintain any affected source, including associated air pollution control

equipment and monitoring equipment, in a manner consistent with safety and good air pollution control practices for minimizing emissions. Determination of whether such operation and maintenance procedures are being used will be based on information available to the Administrator which may include, but is not limited to, monitoring results, review of operation and maintenance procedures, review of operation and maintenance records, and inspection of the source. (40 CFR 63.11115(a))

b. Permittee must not allow gasoline to be handled in a manner that would result in vapor releases to the atmosphere for extended periods of time. Measures to be taken include, but are not limited to, the following: (1) Minimize gasoline spills. (40 CFR 63.11116(a)(1)) (2) Clean up spills as expeditiously as practicable. (40 CFR 63.11116(a)(2)) (3) Cover all open gasoline containers and all gasoline storage tank fill-pipes with a gasketed seal when not in

use. (40 CFR 63.11116(a)(3)) (4) Minimize gasoline sent to open waste collection systems that collect and transport gasoline to reclamation and

recycling devices, such as oil/water separators. (40 CFR 63.11116(a)(4)) c. Except as specified in paragraph (c) of this section, you must only load gasoline into storage tanks at your facility by

utilizing submerged filling, as defined in §63.11132, and as specified in paragraphs (c)(1), (c)(2), or (c)(3) of this section. The applicable distances in paragraphs (c)(1) and (2) shall be measured from the point in the opening of the submerged fill pipe that is the greatest distance from the bottom of the storage tank. (40 CFR 63.11117(b)) (1) Submerged fill pipes installed on or before November 9, 2006, must be no more than 12 inches from the

bottom of the tank. (40 CFR 63.11117(b)(1)) (2) Submerged fill pipes installed after November 9, 2006, must be no more than 6 inches from the bottom of the

tank. (40 CFR 63.11117(b)(2)) (3) Submerged fill pipes not meeting the specifications of paragraphs (c)(1) or (c)(2) of this section are allowed if

the owner or operator can demonstrate that the liquid level in the tank is always above the entire opening of the fill pipe. Documentation providing such demonstration must be made available for inspection by the Administrator's delegated representative during the course of a site visit. (40 CFR 63.11117(b)(3))

d. Permittee must have records available within 24 hours of a request by the Administrator to document your gasoline throughput. (40 CFR 63.11116(b))


Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in AU.4. of this section. b. Maintain records of the occurrence and duration of any startup, shutdown, or malfunction in the operation of S2.082;

any malfunction of the air pollution control equipment; or any periods during which a continuous monitoring system or monitoring device is inoperative. (40 CFR 60.7(b))




164

Section VI. Specific Operating Conditions (continued) AV. Emission Units S2.104 through S2.107

System 76 – Meikle Mine Air Heaters Location UTM (Zone 11, NAD 83) m North m East

S2.104 Air Heater #1 4,539,301 551,861 S2.105 Air Heater #2 4,539,301 551,867 S2.106 Air Heater #3 4,539,261 551,863 S2.107 Air Heater #4 4,539,260 551,868


Air Pollution Control Equipment a. Emissions from S2.104 through S2.107 shall be uncontrolled. b. S2.104 through S2.107 shall each have their own stack. c. Descriptive Stack Parameters



Operating Parameters a. S2.104 through S2.107, each, may consume either propane or natural gas. Combustion of a blend of these fuels is

prohibited. b. The maximum allowable fuel consumption rate for S2.104 through S2.107, each, shall not exceed 153.0 gallons of

propane per any one-hour period, nor more than 162,678.0 gallons per year, based on a 12-month rolling period. c. The maximum allowable fuel consumption rate for S2.104 through S2.107, each, shall not exceed 13,750.0 cubic

feet of natural gas per any one-hour period, nor more than 14,593,137.0 gallons per year, based on a 12-month rolling period.

d. Hours (1) S2.104 through S2.107, each, may operate a total of 24 hours per day.


Emission Limits The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from S2.104 through S2.107, each, the following pollutants in excess of the following specified limits: a. NAC 445B.305 Part 70 Program – The discharge of PM (particulate matter) to the atmosphere shall not exceed 0.11






f. NAC 445B.305 Part 70 Program – The discharge of CO (carbon monoxide) to the atmosphere shall not exceed 1.16 pounds per hour, nor more than 0.61 ton per year, based on 12-month rolling period.

g. NAC 445B.305 Part 70 Program – The discharge of VOCs (volatile organic compounds) to the atmosphere shall not exceed 0.12 pound per hour, nor more than 0.065 ton per year, based on 12-month rolling period.




165

Section VI. Specific Operating Conditions (continued) AV. Emission Units S2.104 through S2.107 (continued)


Emission Limits (continued) The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from S2.104 through S2.107, each, the following pollutants in excess of the following specified limits: h. NAC 445B.2203 Federally Enforceable SIP Requirement – The maximum allowable discharge of PM10 (particulate

matter less than or equal to 10 microns in diameter) to the atmosphere from S2.104 through S2.107, each, shall not exceed 0.55 pound per MMBtu.

i. NAC 445B.22017 Federally Enforceable SIP Requirement – The opacity from S2.104 through S2.107, each, shall not equal or exceed 20%.

j. NAC 445B.22047 Federally Enforceable SIP Requirement – The maximum allowable discharge of Sulfur to the atmosphere from S2.104 through S2.107, each, shall not exceed 9.80 pounds per hour.


Monitoring The permittee, upon issuance of this operating permit, shall: a. Monitor and record the hours of operation while consuming propane for S2.104 through S2.107, each, on a daily

basis. b. Monitor and record the hours of operation while consuming natural gas for S2.104 through S2.107, each, on a

daily basis. c. Monitor and record the consumption rate of propane on a daily basis for S2.104 through S2.107, each, (in gallons). d. Monitor and record the consumption rate of natural gas on a daily basis for S2.104 through S2.107, each, (in cubic

feet). e. Record the consumption rate of propane (in gallons) for S2.104 through S2.107, each, on a cumulative monthly

basis, for each 12-month rolling period. f. Record the consumption rate of natural gas (in cubic feet) for S2.104 through S2.107, each, on a cumulative

monthly basis, for each 12-month rolling period.

5. NAC 445B.3405 (NAC 445B.316) Part 70 Program Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in AV.4. of this section.




166

Section VI. Specific Operating Conditions (continued) AW. Emission Units PF1.125 and PF1.126

System 77 – Rodeo Shaft Location UTM (Zone 11, NAD 83) m North m East

PF1.125 Skip Discharge 4,538,133 552,142 PF1.126 Chute Discharge

1. NAC 445B.3405 (NAC 445B.316) Part 70 Program Air Pollution Control Equipment a. Emissions from PF1.125 shall be controlled by an enclosure. b. Emissions from PF1.126 shall be uncontrolled.


Operating Parameters a. The maximum allowable throughput rate for PF1.125 and PF1.126, each, shall not exceed 250.0 tons of gold ore or

mine rock per any one-hour period, nor more than 730,000.0 tons per year, based on a 12-month rolling period. b. Hours

(1) PF1.125 and PF1.126, each, may operate a total of 24 hours per day.










d. NAC 445B.22033 Federally Enforceable SIP Requirement – The maximum allowable discharge of PM10 (particulate matter less than or equal to 10 microns in diameter) to the atmosphere from PF1.125 and PF1.126, each, shall not exceed 60.96 pounds per hour.

e. NAC 445B.22017 Federally Enforceable SIP Requirement – The opacity from PF1.125 and PF1.126, each, shall not equal or exceed 20%.




167

Section VI. Specific Operating Conditions (continued) AW. Emission Units PF1.125 and PF1.126 (continued)


Monitoring The permittee, upon issuance of this operating permit, shall: a. Monitor and record the throughput for PF1.125 and PF1.126, each, on a daily basis. b. Monitor and record the hours of operation for PF1.125 and PF1.126, each, on a daily basis. c. Record the average hourly throughput rate (in tons per hour) for PF1.125 and PF1.126, each, using the daily

throughput and the daily hours of operation. d. Record the throughput rate of gold ore or mine rock for PF1.125 and PF1.126, each, on a cumulative monthly

basis, for each 12- month rolling period. e. Conduct and record an observation of visible emissions (excluding water vapor) on PF1.125 on a monthly basis


f. Inspect the enclosure installed on PF1.125 on a monthly basis to confirm that the enclosure is in place and functioning properly. If the enclosure is in disrepair, the Permittee shall initiate corrective action within 24 hours and complete corrective action as expediently as practical to ensure that the enclosure is functioning properly. The Permittee must record each inspection of the enclosures, including the date of each inspection and any corrective actions taken.


Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in AW.4. of this section.


Processing Plants (40 CFR Part 60.380) a. On and after the sixtieth day after achieving the maximum production rate at which PF1.125 and PF1.126, each,

will be operated, but not later than 180 days after initial startup, the Permittee shall not discharge or cause the discharge into the atmosphere, the following pollutants in excess of the following specified limits: (1) Process fugitive emissions from PF1.125 and PF1.126, each, will not exceed 10 percent opacity. (40 CFR

Part 60.382(b)) (2) The opacity standard set forth in this part shall apply at all times except during period of startup, shutdown,






168

Section VI. Specific Operating Conditions (continued) AX. Emission Unit S2.224

System 78 – Cooling Tower Location UTM (Zone 11, NAD 83) m North m East

S2.224 Oxygen Plant Cooling Tower 4,538,557 552,071


Exhaust Flow: 1,000,000 dry standard cubic feet per minute (dscfm)







pound per hour, nor more than 2.89 tons per year, based on a 12-month rolling period. b. NAC 445B.305 Part 70 Program - The discharge of PM10 (particulate matter less than or equal to 10 microns in

diameter) to the atmosphere shall not exceed 0.66 pound per hour, nor more than 2.89 tons per year, based on a 12-month rolling period.










169


AX. Emission Units S2.224 (continued)



million (ppm). The TDS shall be determined in accordance with AX.4.a. above. 6. NAC 445B.3405 (NAC 445B.316) Part 70 Program

Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in AX.5. of this section.




170

Section VI. Specific Operating Conditions (continued) AY.

System 81 – Rodeo Backfill Mixing Plant Cement/Fly Ash Silos #1 and #2 - REMOVED




171

Section VI. Specific Operating Conditions (continued) AZ. Emission Units PF1.350 and PF1.351

System 86 – Rodeo Shotcrete Loadout Station Location UTM (Zone 11, NAD 83) m North m East

PF1.350 Delivery Truck Discharge 4,538,133 552,142 PF1.351 Screw Conveyor Discharge

1. NAC 445B.3405 (NAC 445B.316) Part 70 Program Air Pollution Control Equipment Emissions from PF1.350 and PF1.351 shall be controlled by an enclosure.


Operating Parameters a. The maximum allowable throughput rate for PF1.350 and PF1.351, each, shall not exceed 60.0 tons of shotcrete

per any one-hour period, nor more than 60,000.0 tons per year, based on a 12-month rolling period. b. Hours



from PF1.350 and PF1.351, each, the following pollutants in excess of the following specified limits: b. NAC 445B.305 Part 70 Program – The discharge of PM (particulate matter) to the atmosphere shall not exceed 0.14

pound per hour, nor more than 0.072 ton per year, based on 12-month rolling period. c. NAC 445B.305 Part 70 Program – The discharge of PM10 (particulate matter less than or equal to 10 microns in


d. NAC 445B.305 Part 70 Program – The discharge of PM2.5 (particulate matter less than or equal to 2.5 microns in diameter) to the atmosphere shall not exceed 0.013 pound per hour, nor more than 0.006 ton per year, based on 12-month rolling period.

e. NAC 445B.22033 Federally Enforceable SIP Requirement – The maximum allowable discharge of PM10 (particulate matter less than or equal to 10 microns in diameter) to the atmosphere from PF1.350 and PF1.351, each, shall not exceed 46.29 pounds per hour.

f. NAC 445B.22017 Federally Enforceable SIP Requirement – The opacity from PF1.350 and PF1.351, each, shall not equal or exceed 20%.



throughput and the daily hours of operation. d. Record the throughput rate of shotcrete for PF1.350 and PF1.351, each, on a cumulative monthly basis, for each

12- month rolling period. e. Conduct and record an observation of visible emissions (excluding water vapor) on PF1.350 and PF1.351, each, on

a monthly basis while operating. The observer shall stand at a distance sufficient to provide a clear view of the emissions with the sun oriented to their back. If visible emissions are observed, the Permittee shall conduct and record a Method 9 visible emission test. Each Method 9 visible emission test shall be conducted by a certified visible emissions reader in accordance with 40 CFR Part 60, Appendix A.




172

Section VI. Specific Operating Conditions (continued) AZ. Emission Units PF1.350 and PF1.351 (continued)


Monitoring (continued) The permittee, upon issuance of this operating permit, shall: f. Inspect the enclosure installed on PF1.350 and PF1.351, each, on a monthly basis to confirm that the enclosure is in

place and functioning properly. If the enclosure is in disrepair, the Permittee shall initiate corrective action within 24 hours and complete corrective action as expediently as practical to ensure that the enclosure is functioning properly. The Permittee must record each inspection of the enclosures, including the date of each inspection and any corrective actions taken.


Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in AZ.4. of this section.




173

Section VI. Specific Operating Conditions (continued) BA. Emission Units S2.307 through S2.310

System 87 – Rodeo Mine Air Heaters Location UTM (Zone 11, NAD 83) m North m East

S2.307 Air Heater #1 4,538,130 552,176 S2.308 Air Heater #2 4,538,130 552,182 S2.309 Air Heater #3 4,538,088 552,177 S2.310 Air Heater #4 4,538,088 552,183


Air Pollution Control Equipment a. Emissions from S2.307 through S2.310 shall be uncontrolled. b. S2.307 through S2.310 shall each have their own stack. c. Descriptive Stack Parameters



Operating Parameters a. S2.104 through S2.107, each, may consume either propane or natural gas. Combustion of a blend of these fuels is

prohibited. b. The maximum allowable fuel consumption rate for S2.307 through S2.310, each, shall not exceed 137.0 gallons of

propane per any one-hour period, nor more than 178,505.0 gallons per year, based on a 12-month rolling period. c. The maximum allowable fuel consumption rate for S2.307 through S2.310, each, shall not exceed 12,255.0 cubic

feet of natural gas per any one-hour period, nor more than 16,012,990.0 gallons per year, based on a 12-month rolling period.

d. Hours (1) S2.307 through S2.310, each, may operate a total of 24 hours per day.


Emission Limits The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from S2.307 through S2.310, each, the following pollutants in excess of the following specified limits: a. NAC 445B.305 Part 70 Program – The discharge of PM (particulate matter) to the atmosphere shall not exceed 0.19











174

Section VI. Specific Operating Conditions (continued) BA. Emission Units S2.307 through S2.310 (continued)


Emission Limits (continued) The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from S2.307 through S2.310, each, the following pollutants in excess of the following specified limits: h. NAC 445B.2203 Federally Enforceable SIP Requirement – The maximum allowable discharge of PM10 (particulate

matter less than or equal to 10 microns in diameter) to the atmosphere from S2.307 through S2.310, each, shall not exceed 0.57 pound per MMBtu.

i. NAC 445B.22017 Federally Enforceable SIP Requirement – The opacity from S2.307 through S2.310, each, shall not equal or exceed 20%.

j. NAC 445B.22047 Federally Enforceable SIP Requirement – The maximum allowable discharge of Sulfur to the atmosphere from S2.307 through S2.310, each, shall not exceed 8.75 pounds per hour.


Monitoring The permittee, upon issuance of this operating permit, shall: a. Monitor and record the hours of operation while consuming propane for S2.307 through S2.310, each, on a daily

basis. b. Monitor and record the hours of operation while consuming natural gas for S2.307 through S2.310, each, on a

daily basis. c. Monitor and record the consumption rate of propane on a daily basis for S2.307 through S2.310, each, (in gallons). d. Monitor and record the consumption rate of natural gas on a daily basis for S2.307 through S2.310, each, (in cubic

feet). e. Record the consumption rate of propane (in gallons) for S2.307 through S2.310, each, on a cumulative monthly

basis, for each 12-month rolling period. f. Record the consumption rate of natural gas (in cubic feet) for S2.307 through S2.310, each, on a cumulative

monthly basis, for each 12-month rolling period.

5. NAC 445B.3405 (NAC 445B.316) Part 70 Program Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in BA.4. of this section.




175

Section VI. Specific Operating Conditions (continued) BB. Emission Units PF1.352 through PF1.359

System 88 – Backup Crushing System Location UTM (Zone 11, NAD 83)

m North m East Aggregate Ore Aggregate Ore

PF1.352 Crusher Feeder (Load) 4,539,607 4,538,649 551,962 552,551 PF1.353 Crusher Feeder (Discharge to Crusher) 4,539,605 4,538,649 551,958 552,551 PF1.354 Primary Crusher 4,539,605 4,538,649 551,958 552,551 PF1.355 Crusher Outlet Conveyor Transfer 4,539,597 4,538,639 551,958 552,544 PF1.356 Conveyor Transfer 4,539,588 4,538,625 551,958 552,538 PF1.357 Hopper (Load) 4,539,581 4,538,618 551,958 552,535 PF1.358 Hopper (Discharge) 4,539,580 4,538,618 551,958 552,535 PF1.359 Conveyor Transfer 4,539,573 4,538,606 551,967 552,530


Air Pollution Control Equipment Emissions from PF1.352 through PF1.359 shall be controlled by commercially designed water sprays.

2. NAC 445B.3405 (NAC 445B.316) Part 70 Program Operating Parameters a. The maximum allowable throughput rate for PF1.352 through PF1.359, each, shall not exceed 1,232.0 tons of

aggregate or ore per any one-hour period, nor more than 8,212,500.0 tons per year, based on a 12-month rolling period.

b. Hours (1) PF1.352 through PF1.359, each, may operate a total of 24 hours per day.


from PF1.352 and PF1.355 through PF1.359, each, the following pollutants in excess of the following specified limits: (1) NAC 445B.305 Part 70 Program – The discharge of PM (particulate matter) to the atmosphere shall not




b. The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from PF1.353 and PF1.354, combined, the following pollutants in excess of the following specified limits: (1) NAC 445B.305 Part 70 Program – The discharge of PM (particulate matter) to the atmosphere shall not







176

Section VI. Specific Operating Conditions (continued) BB. Emission Units PF1.352 through PF1.359 (continued)


Emission Limits (continued) c. NAC 445B.22033 Federally Enforceable SIP Requirement – The maximum allowable discharge of PM10 (particulate

matter less than or equal to 10 microns in diameter) to the atmosphere PF1.352 through PF1.359, each, shall not exceed 80.32 pounds per hour.

d. NAC 445B.22017 Federally Enforceable SIP Requirement – The opacity from PF1.352 through PF1.359, each, shall not equal or exceed 20%.


Monitoring The permittee, upon issuance of this operating permit, shall: a. Monitor and record the throughput for PF1.352 through PF1.359, each, on a daily basis. b. Monitor and record the hours of operation for PF1.352 through PF1.359, each, on a daily basis. c. Record the average hourly throughput rate (in tons per hour) for PF1.352 through PF1.359, each, using the daily

throughput and the daily hours of operation. d. Record the throughput rate of aggregate or ore for PF1.352 through PF1.359, each, on a cumulative monthly basis,

for each 12- month rolling period. e. Conduct and record an observation of visible emissions (excluding water vapor) on PF1.352 through PF1.359 on a

monthly basis while operating. The Permittee shall conduct and record a Method 9 visible emission test. Each Method 9 visible emission test shall be conducted by a certified visible emissions reader in accordance with 40 CFR Part 60, Appendix A.



Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in BB.4. of this section. b. Maintain records of the occurrence and duration of any startup, shutdown, or malfunction in the operation of an



Processing Plants (40 CFR Part 60.380) a. On and after the sixtieth day after achieving the maximum production rate at which PF1.352 through PF1.359 will

be operated, but not later than 180 days after initial startup, the Permittee shall not discharge or cause the discharge into the atmosphere, the following pollutants in excess of the following specified limits: (1) Process fugitive emissions from PF1.352 through PF1.359, each, will not exceed 10 percent opacity. (40


and malfunction. (40 CFR 60.11(c))




177

Section VI. Specific Operating Conditions (continued) BB. Emission Units PF1.352 through PF1.359 (continued)


Processing Plants (40 CFR Part 60.380)(continued) b. At all times, including periods of startup, shutdown, and malfunction, owners and operators shall, to the extent




On and after the sixtieth day after achieving the maximum production rate at which PF1.352 through PF1.356, PF1.358, and PF1.359 will be operated, but not later than 180 days after initial startup, the Permittee shall not discharge or cause the discharge into the atmosphere, the following pollutants in excess of the following specified limits: (1) Process fugitive emissions from PF1.353 and PF1.354, each, will not exceed 15 percent opacity. (40 CFR

Part 60.672(b)) (2) Process fugitive emissions from PF1.352, PF1.355, PF1.356, PF1.358, and PF1.359, each, will not exceed

10 percent opacity. (40 CFR Part 60.672(b)) (3) The opacity standard set forth in this part shall apply at all times except during period of startup, shutdown,







178

Section VI. Specific Operating Conditions (continued) BC. Emission Units S2.311.1 through S2.311.4

System 90 – Emergency Power Generators (Located in the Autoclave Area) Location UTM (Zone 11, NAD 83) m North m East

S2.311.1 Diesel Fueled Engine Electric - Generator #1 (MP-750, Autoclave) (1,592 hp, Caterpillar, Model #3512, Manufactured Pre-2006)

4,535,971 554,704


4,535,996 554,697

S2.311.3 Diesel Fueled Engine Electric - Generator #3 (MP-606, Autoclave) (1,592 hp, Caterpillar, Model #3512, manufactured pre-2006)

4,535,994 554,694


4,536,022 554,694


Air Pollution Control Equipment a. Emissions from S2.311.1 through S2.311.4 shall be uncontrolled. b. Descriptive Stack Parameters for S2.311.1

Stack Height: 22.5 feet Stack Diameter: 1.0 foot Stack Temperature: 805°F Exhaust Flow: 2,705 dry standard cubic feet per minute (dscfm)

c. Descriptive Stack Parameters for S2.311.2 Stack Height: 22.5 feet Stack Diameter: 1.0 foot Stack Temperature: 844°F Exhaust Flow: 2,576 dry standard cubic feet per minute (dscfm)

d. Descriptive Stack Parameters for S2.311.3 Stack Height: 22.5 feet Stack Diameter: 1.0 foot Stack Temperature: 783°F Exhaust Flow: 2,467 dry standard cubic feet per minute (dscfm)

e. Descriptive Stack Parameters for S2.311.4 Stack Height: 22.5 feet Stack Diameter: 1.0 foot Stack Temperature: 828°F Exhaust Flow: 2,432 dry standard cubic feet per minute (dscfm)


Operating Parameters a. S2.311.1 through S2.311.4, each, may consume only diesel. b. The maximum allowable fuel consumption rate for S2.311.1 shall not exceed 60.9 gallons of diesel per any one-hour

period. c. The maximum allowable fuel consumption rate for S2.311.2 through S2.311.4, each, shall not exceed 64.7 gallons

of diesel per any one-hour period. d. Hours

(1) S2.311.1 through S2.311.4, each, may operate a total of 24 hours per day. (2) S2.311.1 through S2.311.4, each, may operate a maximum of 100 hours per year of non-emergency use.

There is no time limit on operation in emergency situations.




179

Section VI. Specific Operating Conditions (continued) BC. Emission Units S2.311.1 through S2.311.4 (continued)


Emission Limits a. The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere





(4) NAC 445B.305 Part 70 Program – The discharge of SO2 (sulfur dioxide) to the atmosphere shall not exceed 0.013 pound per hour, nor more than 0.0007 ton per year, based on 12-month rolling period.

(5) NAC 445B.305 Part 70 Program – The discharge of NOX (oxides of nitrogen) to the atmosphere shall not exceed 40.92 pounds per hour, nor more than 2.05 tons per year, based on 12-month rolling period.

(6) NAC 445B.305 Part 70 Program – The discharge of CO (carbon monoxide) to the atmosphere shall not exceed 7.25 pounds per hour, nor more than 0.36 ton per year, based on 12-month rolling period.

(7) NAC 445B.305 Part 70 Program – The discharge of VOCs (volatile organic compounds) to the atmosphere shall not exceed 0.77 pound per hour, nor more than 0.038 ton per year, based on 12-month rolling period.

(8) NAC 445B.2203 Federally Enforceable SIP Requirement – The maximum allowable discharge of PM10 (particulate matter less than or equal to 10 microns in diameter) to the atmosphere from S2.311.1 shall not exceed 0.60 pound per MMBtu.


(10) NAC 445B.22047 Federally Enforceable SIP Requirement – The maximum allowable discharge of Sulfur to the atmosphere from S2.311.1 shall not exceed 5.97 pounds per hour.

b. The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from S2.311.2 through S2.311.4, each, the following pollutants in excess of the following specified limits: (1) NAC 445B.305 Part 70 Program – The discharge of PM (particulate matter) to the atmosphere shall not








(8) NAC 445B.2203 Federally Enforceable SIP Requirement – The maximum allowable discharge of PM10 (particulate matter less than or equal to 10 microns in diameter) to the atmosphere from S2.311.2 through S2.311.4, each, shall not exceed 0.60 pound per MMBtu.




180




from S2.311.2 through S2.311.4, each, the following pollutants in excess of the following specified limits: (9) NAC 445B.22017 Federally Enforceable SIP Requirement – The opacity from S2.311.2 through S2.311.4,

each, shall not equal or exceed 20%. (10) NAC 445B.22047 Federally Enforceable SIP Requirement – The maximum allowable discharge of Sulfur to

the atmosphere from S2.311.2 through S2.311.4, each, shall not exceed 6.34 pounds per hour.

4. NAC 445B.3405 (NAC 445B.316) Part 70 Program Monitoring The permittee, upon issuance of this operating permit, shall: a. Monitor and record the total daily hours of operation for S2.311.1 through S2.311.4, each, for each day of

operation. The Permittee shall note which hours of operation are emergency hours, and which hours of operation are hours for non-emergency use.

b. Monitor and record the consumption rate of diesel on a daily basis for S2.311.1 (in gallons) by multiplying the maximum hourly fuel consumption rate as stated in BC.2.b. of this section and the total daily hours of operation.

c. Monitor and record the consumption rate of diesel on a daily basis for S2.311.2 through S2.311.4, each, (in gallons) by multiplying the maximum hourly fuel consumption rate as stated in BC.2.c. of this section and the total daily hours of operation.

d. Monitor and record the total yearly hours of operation of S2.311.1 through S2.311.4, each, per year. The annual hours of operation shall be determined at the end of each month as the sum of the monthly hours of operation for all previous months of that year.


Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in BC.4. of this section.

6. Federal Requirements NAC 445B.3405 (NAC 445B.316) Part 70 Program

National Emissions Standards for Hazardous Air Pollutants (NESHAP) – 40 CFR Part 63 Subpart ZZZZ – for Stationary Reciprocating Internal Combustion Engines a. Emissions Limitations, Management Practices and Other Requirements (40 CFR 63.6603(a), Table 2d)

For each Emergency stationary CI RICE and black start stationary CI RICE, the Permittee must meet the following requirement, except during periods of startup: (1) Change oil and filter every 500 hours of operation or annually, whichever comes first; (2) Inspect air cleaner every 1,000 hours of operation or annually, whichever comes first, and replace as

necessary; and (3) Inspect all hoses and belts every 500 hours of operation or annually, whichever comes first, and replace as

necessary. b. Fuel Requirements (40 CFR 63.6604)

The Permittee must meet the following diesel requirements for non-road engine: (40 CFR 63.6604, 80.510(b)) (1) Sulfur content to be 15 parts per million (ppm) maximum. (2) Cetane index or aromatic content as follows:

(a) A minimum cetane index of 40; or (b) A maximum aromatic content of 35 volume percent.




181



National Emissions Standards for Hazardous Air Pollutants (NESHAP) – 40 CFR Part 63 Subpart ZZZZ – for Stationary Reciprocating Internal Combustion Engines (continued) c. Monitoring, Installation, Collection, Operation, Maintenance Requirements (40 CFR 63.6625)

(1) The Permittee must operate and maintain the stationary RICE and after-treatment control device (if any) according to the manufacturer's emission-related written instructions or develop the Permittee’s own maintenance plan which must provide to the extent practicable for the maintenance and operation of the engine in a manner consistent with good air pollution control practice for minimizing emissions. (40 CFR 63.6625(e))

(2) The Permittee must install a non-resettable hour meter if one is not already installed. (40 CFR 63.6625(f)) (3) The Permittee must minimize the engine's time spent at idle during startup and minimize the engine's startup

time to a period needed for appropriate and safe loading of the engine, not to exceed 30 minutes, after which time the emission standards applicable to all times other than startup in in BC.6.a of this section. (40 CFR 63.6625(h))

(4) The Permittee has the option of utilizing an oil analysis program in order to extend the specified oil change requirement in BC.6.a.(1) of this section. The oil analysis must be performed at the same frequency specified for changing the oil in BC.6.a.(1) of this section. The analysis program must at a minimum analyze the following three parameters: Total Base Number, viscosity, and percent water content. The condemning limits for these parameters are as follows: Total Base Number is less than 30 percent of the Total Base Number of the oil when new; viscosity of the oil has changed by more than 20 percent from the viscosity of the oil when new; or percent water content (by volume) is greater than 0.5. If all of these condemning limits are not exceeded, the Permittee is not required to change the oil. If any of the limits are exceeded, the Permittee must change the oil within 2 business days of receiving the results of the analysis; if the engine is not in operation when the results of the analysis are received, the engine owner or operator must change the oil within 2 business days or before commencing operation, whichever is later. The Permittee must keep records of the parameters that are analyzed as part of the program, the results of the analysis, and the oil changes for the engine. The analysis program must be part of the maintenance plan for the engine. (40 CFR 63.6625(i))

d. Compliance Requirements (40 CFR 63.6605, 63.6640, Table 6) (1) The Permittee must be in compliance with the emission limitations, operating limitations, and other

requirements in Subpart ZZZZ that apply at all times. (40 CFR Part 63.6605(a)) (2) The Permittee must operate and maintain any affected source, including associated air pollution control

equipment and monitoring equipment, in a manner consistent with safety and good air pollution control practices for minimizing emissions. The general duty to minimize emissions does not require the Permittee to make any further efforts to reduce emissions if levels required by this standard have been achieved. Determination of whether such operation and maintenance procedures are being used will be based on information available to the Administrator which may include, but is not limited to, monitoring results, review of operation and maintenance procedures, review of operation and maintenance records, and inspection of the source. (40 CFR Part 63.6605(b))

(3) Permittee must demonstrate continuous compliance with each emission limitation, operating limitation, and other requirements in BC.6.a of this section that applies to the Permittee according to methods specified below: (40 CFR 63.6640(a), Table 6) (a) Operating and maintaining the stationary RICE according to the manufacturer's emission-related

operation and maintenance instructions; or (b) Develop and follow Permittee’s own maintenance plan which must provide to the extent practicable for

the maintenance and operation of the engine in a manner consistent with good air pollution control practice for minimizing emissions.




182



National Emissions Standards for Hazardous Air Pollutants (NESHAP) – 40 CFR Part 63 Subpart ZZZZ – for Stationary Reciprocating Internal Combustion Engines (continued) d. Compliance Requirements (40 CFR 63.6605, 63.6640, Table 6) (continued)

(4) The Permittee must operate the emergency stationary RICE according to the requirements in BC.6.d.(4)(a) through (c) of this section. In order for the engine to be considered an emergency stationary RICE under this subpart, any operation other than emergency operation, maintenance and testing, emergency demand response, and operation in non-emergency situations for 50 hours per year, as described in BC.6.d.(4)(a) through (c) of this section, is prohibited. If the Permittee does not operate the engine according to the requirements in BC.6.d.(4)(a) through (c) of this section, the engine will not be considered an emergency engine under this subpart and must meet all requirements for non-emergency engines. (40 CFR 63.6640(f)) (a) There is no time limit on the use of emergency stationary RICE in emergency situations. (40 CFR

63.6640(f)(1)) (b) The Permittee may operate their emergency stationary RICE for any combination of the purposes

specified in BC.6.d.(4)(b)(i) of this section for a maximum of 100 hours per calendar year. Any operation for non-emergency situations as allowed by BC.6.d.(4)(c) of this section counts as part of the 100 hours per calendar year. (40 CFR 63.6640(f)(2)) i. Emergency stationary RICE may be operated for maintenance checks and readiness testing,

provided that the tests are recommended by federal, state or local government, the manufacturer, the vendor, the regional transmission organization or equivalent balancing authority and transmission operator, or the insurance company associated with the engine. The Permittee may petition the Administrator for approval of additional hours to be used for maintenance checks and readiness testing, but a petition is not required if the owner or operator maintains records indicating that federal, state, or local standards require maintenance and testing of emergency RICE beyond 100 hours per calendar year. (40 CFR 63.6640(f)(2)(i))

(c) Emergency stationary RICE located at area sources of HAP may be operated for up to 50 hours per calendar year in non-emergency situations. The 50 hours of operation in non-emergency situations are counted as part of the 100 hours per calendar year for maintenance and testing and emergency demand response provided in BC.6.d.(4)(b) of this section. Except as provided in in BC.6.d.(4)(c)(i) and (ii) of this section, the 50 hours per year for non-emergency situations cannot be used for peak shaving or non-emergency demand response, or to generate income for a facility to an electric grid or otherwise supply power as part of a financial arrangement with another entity. (40 CFR 63.6640(f)(4)) i. Prior to May 3, 2014, the 50 hours per year for non-emergency situations can be used for peak

shaving or non-emergency demand response to generate income for a facility, or to otherwise supply power as part of a financial arrangement with another entity if the engine is operated as part of a peak shaving (load management program) with the local distribution system operator and the power is provided only to the facility itself or to support the local distribution system. (40 CFR 63.6640(f)(4)(i))

ii. The 50 hours per year for non-emergency situations can be used to supply power as part of a financial arrangement with another entity if all of the conditions in 40 CFR 63.6640(f)(4)(ii)(A) through (E) are met. (40 CFR 63.6640(f)(4)(ii))

e. Recordkeeping Requirements (40 CFR Part 63.6655) The Permittee must keep the following records: (1) A copy of each notification and report that the Permittee submitted to comply with Subpart ZZZZ, including

all documentation supporting any Initial Notification or Notification of Compliance Status that the Permittee submitted, according to the requirement in 40 CFR Part 63.10(b)(2)(xiv). (40 CFR 63.6655(a)(1))

(2) Records of the occurrence and duration of each malfunction of operation (i.e., process equipment) or the air pollution control and monitoring equipment. (40 CFR 63.6655(a)(2))




183



National Emissions Standards for Hazardous Air Pollutants (NESHAP) – 40 CFR Part 63 Subpart ZZZZ – for Stationary Reciprocating Internal Combustion Engines (continued) e. Recordkeeping Requirements (40 CFR Part 63.6655) (continued)

The Permittee must keep the following records: (3) Records of performance tests and performance evaluations as required in 40 CFR Part 63.10(b)(2)(viii). (40

CFR 63.6655(a)(3)) (4) Records of all required maintenance performed on the RICE and any air pollution control and monitoring

equipment. (40 CFR 63.6655(a)(4)) (5) Records of actions taken during periods of malfunction to minimize emissions in accordance with BC.6.d.(2)

of this section including corrective actions to restore malfunctioning process and air pollution control and monitoring equipment to its normal or usual manner of operation. (40 CFR 63.6655(a)(5))

(6) The Permittee must keep the records required in with BC.6.d.(3) of this section to show continuous compliance with each emission or operating limitation that applies. (40 CFR 63.6655(d))

(7) The Permittee must keep records of the maintenance conducted on the stationary RICE in order to demonstrate that the Permittee operated and maintained the stationary RICE and after-treatment control device (if any) according to their own maintenance plan. (40 CFR 63.6655(e))

(8) The Permittee must keep records of the hours of operation of the engine that is recorded through the non-resettable hour meter. The Permittee must document how many hours are spent for emergency operation, including what classified the operation as emergency and how many hours are spent for non-emergency operation. If the engine is used for the purposes specified in 40 CFR Part 63.6640(f)(2)(ii) or (iii), or 40 CFR Part 63.6640(f)(4)(ii), the owner or operator must keep records of the notification of the emergency situation, and the date, start time, and end time of engine operation for these purposes. (40 CFR 63.6655(f))




184

Section VI. Specific Operating Conditions (continued) BD. Emission Units S2.312.1 and S2.312.2

System 91 – Emergency Power Generators Location UTM (Zone 11, NAD 83) m North m East

S2.312.1 Diesel Fueled Engine Electric Generator #5 (MP-608, Mill) (2,847 hp, Caterpillar, Model #3516, Manufactured Pre-2006) (Located in the Mill Area)

4,536,148 554,526

S2.312.2 Diesel Fueled Engine Electric Generator #10 (KFE-002, Meikle) (2,847 hp, Caterpillar, Model #3516, Manufactured pre-2006) (Located in the Meikle Underground Area)

4,539,327 551,743


Air Pollution Control Equipment a. Emissions from S2.312.1 and S2.312.2 shall be uncontrolled. b. Descriptive Stack Parameters for S2.312.1


c. Descriptive Stack Parameters for S2.312.2 Stack Height: 12.5 feet Stack Diameter: 1.33 feet Stack Temperature: 924°F Exhaust Flow: 3,996 dry standard cubic feet per minute (dscfm)


Operating Parameters a. S2.312.1 and S2.312.2, each, may consume only diesel. b. The maximum allowable fuel consumption rate for S2.312.1 shall not exceed 135.1 gallons of diesel per any one-

hour period. c. The maximum allowable fuel consumption rate for S2.312.2 shall not exceed 136.5 gallons of diesel per any one-

hour period. d. Hours

(1) S2.312.1 and S2.312.2, each, may operate a total of 24 hours per day. (2) S2.312.1 and S2.312.2, each, may operate a maximum of 100 hours per year of non-emergency use. There is

no time limit on operation in emergency situations.



exceed 1.32 pounds per hour, nor more than 0.066 ton per year, based on 12-month rolling period. (2) NAC 445B.305 Part 70 Program – The discharge of PM10 (particulate matter less than or equal to 10 microns

in diameter) to the atmosphere shall not exceed 1.08 pounds per hour, nor more than 0.054 ton per year, based on 12-month rolling period.

(3) NAC 445B.305 Part 70 Program – The discharge of PM2.5 (particulate matter less than or equal to 2.5 microns in diameter) to the atmosphere shall not exceed 1.05 pounds per hour, nor more than 0.053 ton per year, based on 12-month rolling period.





185

Section VI. Specific Operating Conditions (continued) BD. Emission Units S2.312.1 and S2.312.2 (continued)


Emission Limits (continued) a. The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere

from S2.312.1 the following pollutants in excess of the following specified limits: (5) NAC 445B.305 Part 70 Program – The discharge of NOX (oxides of nitrogen) to the atmosphere shall not

exceed 90.79 pounds per hour, nor more than 4.54 tons per year, based on 12-month rolling period. (6) NAC 445B.305 Part 70 Program – The discharge of CO (carbon monoxide) to the atmosphere shall not

exceed 16.08 pounds per hour, nor more than 0.8 ton per year, based on 12-month rolling period. (7) NAC 445B.305 Part 70 Program – The discharge of VOCs (volatile organic compounds) to the atmosphere

shall not exceed 1.70 pounds per hour, nor more than 0.085 ton per year, based on 12-month rolling period. (8) NAC 445B.2203 Federally Enforceable SIP Requirement – The maximum allowable discharge of PM10

(particulate matter less than or equal to 10 microns in diameter) to the atmosphere from S2.312.1 shall not exceed 0.52 pound per MMBtu.



b. The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from S2.312.2 the following pollutants in excess of the following specified limits: (1) NAC 445B.305 Part 70 Program – The discharge of PM (particulate matter) to the atmosphere shall not



(3) NAC 445B.305 Part 70 Program – The discharge of PM2.5 (particulate matter less than or equal to 2.5 microns in diameter) to the atmosphere shall not exceed 1.06 pounds per hour, nor more than 0.053 ton per year, based on 12-month rolling period.




(7) NAC 445B.305 Part 70 Program – The discharge of VOCs (volatile organic compounds) to the atmosphere shall not exceed 1.72 pounds per hour, nor more than 0.086 ton per year, based on 12-month rolling period.







186


4. NAC 445B.3405 (NAC 445B.316) Part 70 Program Monitoring The permittee, upon issuance of this operating permit, shall: a. Monitor and record the total daily hours of operation for S2.312.1 and S2.312.2, each, for each day of operation. The

Permittee shall note which hours of operation are emergency hours, and which hours of operation are hours for non-emergency use.

b. Monitor and record the consumption rate of diesel on a daily basis for S2.312.1 (in gallons) by multiplying the maximum hourly fuel consumption rate as stated in BD.2.b. of this section and the total daily hours of operation.

c. Monitor and record the consumption rate of diesel on a daily basis for S2.312.2 (in gallons) by multiplying the maximum hourly fuel consumption rate as stated in BD.2.c. of this section and the total daily hours of operation.

d. Monitor and record the total yearly hours of operation of S2.312.1 and S2.312.2, each, per year. The annual hours of operation shall be determined at the end of each month as the sum of the monthly hours of operation for all previous months of that year.


Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in BD.4. of this section.








c. Monitoring, Installation, Collection, Operation, Maintenance Requirements (40 CFR 63.6625) (1) The Permittee must operate and maintain the stationary RICE and after-treatment control device (if any)

according to the manufacturer's emission-related written instructions or develop the Permittee’s own maintenance plan which must provide to the extent practicable for the maintenance and operation of the engine in a manner consistent with good air pollution control practice for minimizing emissions. (40 CFR 63.6625(e))


time to a period needed for appropriate and safe loading of the engine, not to exceed 30 minutes, after which time the emission standards applicable to all times other than startup in in BD.6.a of this section. (40 CFR 63.6625(h))




187



National Emissions Standards for Hazardous Air Pollutants (NESHAP) – 40 CFR Part 63 Subpart ZZZZ – for Stationary Reciprocating Internal Combustion Engines c. Monitoring, Installation, Collection, Operation, Maintenance Requirements (40 CFR 63.6625) (continued)

(4) The Permittee has the option of utilizing an oil analysis program in order to extend the specified oil change requirement in BD.6.a.(1) of this section. The oil analysis must be performed at the same frequency specified for changing the oil in BD.6.a.(1) of this section. The analysis program must at a minimum analyze the following three parameters: Total Base Number, viscosity, and percent water content. The condemning limits for these parameters are as follows: Total Base Number is less than 30 percent of the Total Base Number of the oil when new; viscosity of the oil has changed by more than 20 percent from the viscosity of the oil when new; or percent water content (by volume) is greater than 0.5. If all of these condemning limits are not exceeded, the Permittee is not required to change the oil. If any of the limits are exceeded, the Permittee must change the oil within 2 business days of receiving the results of the analysis; if the engine is not in operation when the results of the analysis are received, the engine owner or operator must change the oil within 2 business days or before commencing operation, whichever is later. The Permittee must keep records of the parameters that are analyzed as part of the program, the results of the analysis, and the oil changes for the engine. The analysis program must be part of the maintenance plan for the engine. (40 CFR 63.6625(i))




(3) Permittee must demonstrate continuous compliance with each emission limitation, operating limitation, and other requirements in BD.6.a of this section that applies to the Permittee according to methods specified below: (40 CFR 63.6640(a), Table 6) (a) Operating and maintaining the stationary RICE according to the manufacturer's emission-related






188




(4) The Permittee must operate the emergency stationary RICE according to the requirements in BD.6.d.(4)(a) through (c) of this section. In order for the engine to be considered an emergency stationary RICE under this subpart, any operation other than emergency operation, maintenance and testing, emergency demand response, and operation in non-emergency situations for 50 hours per year, as described in BD.6.d.(4)(a) through (c) of this section, is prohibited. If the Permittee does not operate the engine according to the requirements in BD.6.d.(4)(a) through (c) of this section, the engine will not be considered an emergency engine under this subpart and must meet all requirements for non-emergency engines. (40 CFR 63.6640(f)) (a) There is no time limit on the use of emergency stationary RICE in emergency situations. (40 CFR


specified in BD.6.d.(4)(b)(i) of this section for a maximum of 100 hours per calendar year. Any operation for non-emergency situations as allowed by BD.6.d.(c) of this section counts as part of the 100 hours per calendar year. (40 CFR 63.6640(f)(2)) i. Emergency stationary RICE may be operated for maintenance checks and readiness testing,


(c) Emergency stationary RICE located at area sources of HAP may be operated for up to 50 hours per calendar year in non-emergency situations. The 50 hours of operation in non-emergency situations are counted as part of the 100 hours per calendar year for maintenance and testing and emergency demand response provided in BD.6.d.(4)(b) of this section. Except as provided in in BD.6.d.(4)(c)(i) and (ii) of this section, the 50 hours per year for non-emergency situations cannot be used for peak shaving or non-emergency demand response, or to generate income for a facility to an electric grid or otherwise supply power as part of a financial arrangement with another entity. (40 CFR 63.6640(f)(4)) i. Prior to May 3, 2014, the 50 hours per year for non-emergency situations can be used for peak









189



National Emissions Standards for Hazardous Air Pollutants (NESHAP) – 40 CFR Part 63 Subpart ZZZZ – for Stationary Reciprocating Internal Combustion Engines (continued) e. Recordkeeping Requirements (40 CFR Part 63.6655) (continued)



equipment. (40 CFR 63.6655(a)(4)) (5) Records of actions taken during periods of malfunction to minimize emissions in accordance with BD.6.d.(2)


(6) The Permittee must keep the records required in with BD.6.d.(3) of this section to show continuous compliance with each emission or operating limitation that applies. (40 CFR 63.6655(d))






190

Section VI. Specific Operating Conditions (continued) BE. Emission Units S2.313.1 through S2.313.4

System 92 – Emergency Power Generators Location UTM (Zone 11, NAD 83) m North m East

S2.313.1 Diesel Fueled Engine Electric Generator #6 (MP-610) (1,490 hp, Cummins, Model KTA50, Manufactured pre-2006) (Located in the Roaster Area)

4,538,343 552,196


4,538,346 552,196


4,538,352 552,196

S2.313.4 Diesel Fueled Engine Electric Generator #9 (MP-704, Rodeo) (1,490 hp, Cummins, Model KTA50) (Located in the Rodeo Underground Area)

4,538,108 552,097


Air Pollution Control Equipment a. Emissions from S2.313.1 through S2.313.4 shall be uncontrolled. b. Descriptive Stack Parameters for S2.313.1


c. Descriptive Stack Parameters for S2.313.2 and S2.313.3 Stack Height: 12.5 feet Stack Diameter: 0.5 feet Stack Temperature: 829°F Exhaust Flow: 1,365 dry standard cubic feet per minute (dscfm)

d. Descriptive Stack Parameters for S2.313.4 Stack Height: 12.5 feet Stack Diameter: 0.5 feet Stack Temperature: 855°F Exhaust Flow: 1,248 dry standard cubic feet per minute (dscfm)


Operating Parameters a. S2.313.1 through S2.313.4, each, may consume only diesel. b. The maximum allowable fuel consumption rate for S2.313.1 shall not exceed 67.5 gallons of diesel per any one-hour

period. c. The maximum allowable fuel consumption rate for S2.313.2 and S2.313.3, each, shall not exceed 71.8 gallons of

diesel per any one-hour period. d. The maximum allowable fuel consumption rate for S2.313.4 shall not exceed 74.5 gallons of diesel per any one-hour

period. e. Hours

(1) S2.313.1 through S2.313.4, each, may operate a total of 24 hours per day. (2) S2.313.1 through S2.313.4, each, may operate a maximum of 100 hours per year of non-emergency use.

There is no time limit on operation in emergency situations.




191

Section VI. Specific Operating Conditions (continued) BE. Emission Units S2.313.1 through S2.313.4 (continued)














b. The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from S2.313.2 and S2.313.3, each, the following pollutants in excess of the following specified limits: (1) NAC 445B.305 Part 70 Program – The discharge of PM (particulate matter) to the atmosphere shall not








(8) NAC 445B.2203 Federally Enforceable SIP Requirement – The maximum allowable discharge of PM10 (particulate matter less than or equal to 10 microns in diameter) to the atmosphere from S2.313.2 and S2.313.3, each, shall not exceed 0.60 pound per MMBtu.




192




from S2.313.2 and S2.313.3, each, the following pollutants in excess of the following specified limits: (9) NAC 445B.22017 Federally Enforceable SIP Requirement – The opacity from S2.313.2 and S2.313.3, each,

shall not equal or exceed 20%. (10) NAC 445B.22047 Federally Enforceable SIP Requirement – The maximum allowable discharge of Sulfur to

the atmosphere from S2.313.2 and S2.313.3, each, shall not exceed 7.04 pounds per hour. c. The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere













Monitoring The permittee, upon issuance of this operating permit, shall: a. Monitor and record the total daily hours of operation for S2.313.1 through S2.313.4, each, for each day of

operation. The Permittee shall note which hours of operation are emergency hours, and which hours of operation are hours for non-emergency use.

b. Monitor and record the consumption rate of diesel on a daily basis for S2.313.1 (in gallons) by multiplying the maximum hourly fuel consumption rate as stated in BE.2.b. of this section and the total daily hours of operation.

c. Monitor and record the consumption rate of diesel on a daily basis for S2.313.2 and S2.313.3, each, (in gallons) by multiplying the maximum hourly fuel consumption rate as stated in BE.2.c. of this section and the total daily hours of operation.

d. Monitor and record the consumption rate of diesel on a daily basis for S2.313.4 (in gallons) by multiplying the maximum hourly fuel consumption rate as stated in BE.2.d. of this section and the total daily hours of operation.




193



Monitoring (continued) The permittee, upon issuance of this operating permit, shall: e. Monitor and record the total yearly hours of operation of S2.313.1 through S2.313.4, each, per year. The annual

hours of operation shall be determined at the end of each month as the sum of the monthly hours of operation for all previous months of that year.


Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in BE.4. of this section.

6. Federal Requirements NAC 445B.3405 (NAC 445B.316) Part 70 Program National Emissions Standards for Hazardous Air Pollutants (NESHAP) – 40 CFR Part 63 Subpart ZZZZ – for Stationary Reciprocating Internal Combustion Engines a. Emissions Limitations, Management Practices and Other Requirements (40 CFR 63.6603(a), Table 2d)









time to a period needed for appropriate and safe loading of the engine, not to exceed 30 minutes, after which time the emission standards applicable to all times other than startup in in BE.6.a of this section. (40 CFR 63.6625(h))




194



National Emissions Standards for Hazardous Air Pollutants (NESHAP) – 40 CFR Part 63 Subpart ZZZZ – for Stationary Reciprocating Internal Combustion Engines (continued) c. Monitoring, Installation, Collection, Operation, Maintenance Requirements (40 CFR 63.6625) (continued)

(4) The Permittee has the option of utilizing an oil analysis program in order to extend the specified oil change requirement in BE.6.a.(1) of this section. The oil analysis must be performed at the same frequency specified for changing the oil in BE.6.a.(1) of this section. The analysis program must at a minimum analyze the following three parameters: Total Base Number, viscosity, and percent water content. The condemning limits for these parameters are as follows: Total Base Number is less than 30 percent of the Total Base Number of the oil when new; viscosity of the oil has changed by more than 20 percent from the viscosity of the oil when new; or percent water content (by volume) is greater than 0.5. If all of these condemning limits are not exceeded, the Permittee is not required to change the oil. If any of the limits are exceeded, the Permittee must change the oil within 2 business days of receiving the results of the analysis; if the engine is not in operation when the results of the analysis are received, the engine owner or operator must change the oil within 2 business days or before commencing operation, whichever is later. The Permittee must keep records of the parameters that are analyzed as part of the program, the results of the analysis, and the oil changes for the engine. The analysis program must be part of the maintenance plan for the engine. (40 CFR 63.6625(i))




(3) Permittee must demonstrate continuous compliance with each emission limitation, operating limitation, and other requirements in BE.6.a of this section that applies to the Permittee according to methods specified below: (40 CFR 63.6640(a), Table 6) (a) Operating and maintaining the stationary RICE according to the manufacturer's emission-related






195




(4) The Permittee must operate the emergency stationary RICE according to the requirements in BE.6.d.(4)(a) through (c) of this section. In order for the engine to be considered an emergency stationary RICE under this subpart, any operation other than emergency operation, maintenance and testing, emergency demand response, and operation in non-emergency situations for 50 hours per year, as described in BE.6.d.(4)(a) through (c) of this section, is prohibited. If the Permittee does not operate the engine according to the requirements in BE.6.d.(4)(a) through (c) of this section, the engine will not be considered an emergency engine under this subpart and must meet all requirements for non-emergency engines. (40 CFR 63.6640(f)) (a) There is no time limit on the use of emergency stationary RICE in emergency situations. (40 CFR


specified in BE.6.d.(4)(b)(i) of this section for a maximum of 100 hours per calendar year. Any operation for non-emergency situations as allowed by BE.6.d.(c) of this section counts as part of the 100 hours per calendar year. (40 CFR 63.6640(f)(2)) i. Emergency stationary RICE may be operated for maintenance checks and readiness testing,


(c) Emergency stationary RICE located at area sources of HAP may be operated for up to 50 hours per calendar year in non-emergency situations. The 50 hours of operation in non-emergency situations are counted as part of the 100 hours per calendar year for maintenance and testing and emergency demand response provided in BE.6.d.(4)(b) of this section. Except as provided in in BE.6.d.(4)(c)(i) and (ii) of this section, the 50 hours per year for non-emergency situations cannot be used for peak shaving or non-emergency demand response, or to generate income for a facility to an electric grid or otherwise supply power as part of a financial arrangement with another entity. (40 CFR 63.6640(f)(4)) i. Prior to May 3, 2014, the 50 hours per year for non-emergency situations can be used for peak









196



National Emissions Standards for Hazardous Air PollFutants (NESHAP) – 40 CFR Part 63 Subpart ZZZZ – for Stationary Reciprocating Internal Combustion Engines (continued) e. Recordkeeping Requirements (40 CFR Part 63.6655)(continued)



equipment. (40 CFR 63.6655(a)(4)) (5) Records of actions taken during periods of malfunction to minimize emissions in accordance with BE.6.d.(2)


(6) The Permittee must keep the records required in with BE.6.d.(3) of this section to show continuous compliance with each emission or operating limitation that applies. (40 CFR 63.6655(d))






197

Section VI. Specific Operating Conditions (continued) BF. Emission Units PF1.400, PF1.401, PF1.404 – PF1.406, PF1.408, PF1.409, PF1.411, PF1.415 – PF1.417, PF1.420 – PF1.425,

PF1.433, and PF1.434

System 95 – Ames Backfill Crushing and Screening Plant Location UTM (Zone 11, NAD 83) m North m East

PF1.400 Front End Loader to Jaw Crusher Pan Feeder 1 (Load) 4,539,615 551,940 PF1.401 Front End Loader to Jaw Crusher Pan Feeder 2 (Load) 4,539,625 551,942 PF1.404 Jaw Crusher 1 and Associated Transfers In and Out (in from Pan Feeder 1 and out

to Conveyor 1) 4,539,616 551,931

PF1.405 Jaw Crusher 2 and Associated Transfers In and Out (in from Pan Feeder 2 and out to Conveyor 2) 4,539,624 551,924

PF1.406 Cone Crusher 1 and Associated Transfers In and Out (in from Conveyor 5 and out to Conveyor 7) 4,539,621 551,889

PF1.408 Screen 1 and Associated Transfers In and Out (in from Conveyor 4 and out to Conveyors 5, 6, and 11) 4,539,603 551,893

PF1.409 Screen 2 and Associated Transfers In and Out (in from Conveyor 15) 4,539,609 551,909 PF1.411 Truck Load-Out Surge Bin (Discharge) 4,539,541 551,878 PF1.415 Conveyor 2 Discharge 4,539,610 551,921 PF1.416 Conveyor 1 Transfer to Conveyor 3 4,539,602 551,926 PF1.417 Conveyor 3 Transfer to Conveyor 4 4,539,602 551,910 PF1.420 Conveyor 7 Transfer to Conveyor 8 4,539,619 551,876 PF1.421 Conveyor 6 Transfer to Conveyor 8 4,539,612 551,877 PF1.422 Conveyor 8 Transfer to Conveyor 9 4,539,599 551,876 PF1.423 Conveyor 9 Transfer to Conveyor 10 4,539,580 551,875 PF1.424 Conveyor 15 Discharge 4,539,624 551,876 PF1.425 Conveyor 11 Transfer to Conveyor 12 4,539,597 551,897 PF1.433 Conveyor 12 Transfer to Stockpile 4,539,561 551,903 PF1.434 Conveyor 10 Transfer to Surge Bin 4,539,544 551,874


Air Pollution Control Equipment Emissions from each unit in System 95 shall be controlled by water sprays.

2. NAC 445B.3405 (NAC 445B.316) Part 70 Program Operating Parameters a. The maximum allowable throughput rate for each unit in System 95 shall not exceed 1,000.0 tons of ore or

aggregate per any one-hour period, nor more than 3,000,000.0 tons per year, based on a 12-month rolling period. b. Hours

(1) Each unit in System 95 may operate a total of 24 hours per day.


from PF1.400, PF1.401, PF1.411, PF1.415 – PF1.417, PF1.420 – PF1.425, PF1.433, and PF1.434, each, the following pollutants in excess of the following specified limits: (1) NAC 445B.305 Part 70 Program – The discharge of PM (particulate matter) to the atmosphere shall not






198


PF1.433, and PF1.434 (continued) 3. NAC 445B.3405 (NAC 445B.316) Part 70 Program


from PF1.400, PF1.401, PF1.411, PF1.415 – PF1.417, PF1.420 – PF1.425, PF1.433, and PF1.434, each, the following pollutants in excess of the following specified limits (continued): (3) NAC 445B.305 Part 70 Program – The discharge of PM2.5 (particulate matter less than or equal to 2.5

microns in diameter) to the atmosphere shall not exceed 0.013 pound per hour, nor more than 0.02 ton per year, based on 12-month rolling period.

b. The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from PF1.404 through PF1.406, each, the following pollutants in excess of the following specified limits: (1) NAC 445B.305 Part 70 Program – The discharge of PM (particulate matter) to the atmosphere shall not




c. The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from PF1.408 and PF1.409, each, the following pollutants in excess of the following specified limits: (1) NAC 445B.305 Part 70 Program – The discharge of PM (particulate matter) to the atmosphere shall not




d. NAC 445B.22033 Federally Enforceable SIP Requirement – The maximum allowable discharge of PM10 (particulate matter less than or equal to 10 microns in diameter) to the atmosphere from each unit in System 95 shall not exceed 77.59 pounds per hour.

e. NAC 445B.22017 Federally Enforceable SIP Requirement – The opacity from each unit in System 95 shall not equal or exceed 20%.


Monitoring The permittee, upon issuance of this operating permit, shall: a. Monitor and record the throughput (in tons) for each unit in System 95 on a daily basis. b. Monitor and record the hours of operation for each unit in System 95 on a daily basis. c. Record the average hourly throughput rate (in tons per hour) for each unit in System 95 using the daily throughput

and the daily hours of operation. d. Record the throughput rate of ore and aggregate for each unit in System 95, each, on a cumulative monthly basis,

for each 12- month rolling period. e. Conduct and record an observation of opacity (excluding water vapor) on each unit in System 95 on a monthly

basis while operating. Method 9 in Appendix A of 40 CFR Part 60 shall be used to determine opacity. The minimum total time of observations shall be six minutes (24 consecutive observations recorded at 15 second intervals), unless otherwise specified by an applicable subpart.




199


PF1.433, and PF1.434 (continued) 4. NAC 445B.3405 (NAC 445B.316) Part 70 Program




Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in BF.4. of this section. b. Maintain records of the occurrence and duration of any startup, shutdown, or malfunction in the operation of an




On and after the sixtieth day after achieving the maximum production rate at which System 95 will be operated, but not later than 180 days after initial startup, the Permittee shall not discharge or cause the discharge into the atmosphere, the following pollutants in excess of the following specified limits: (1) Process fugitive emissions from PF1.408, PF1.409, PF1.411, PF1.415 – PF1.417, PF1.420 – PF1.425, and

PF1.434, each, will not exceed 10 percent opacity. (40 CFR Part 60.672(b)) (2) Process fugitive emissions from PF1.404 through PF1.406, each, will not exceed 15 percent opacity. (40








200


PF1.433, and PF1.434 (continued) 7. Federal Requirements (NAC 445B.3405(1)) (Federally Enforceable SIP Requirement) New Source Performance Standards (NSPS) – 40 CFR Part 60 Subpart LL – Standards of Performance for Metallic

Processing Plants (40 CFR Part 60.380) a. On and after the sixtieth day after achieving the maximum production rate at which PF1.404 – PF1.406, PF1.408,

PF1.409, PF1.411, PF1.415 – PF1.417, PF1.420 – PF1.425, and PF1.434, each, will be operated, but not later than 180 days after initial startup, the Permittee shall not discharge or cause the discharge into the atmosphere, the following pollutants in excess of the following specified limits: (1) Process fugitive emissions from PF1.404 – PF1.406, PF1.408, PF1.409, PF1.411, PF1.415 – PF1.417,

PF1.420 – PF1.425, and PF1.434, each, will not exceed 10 percent opacity. (40 CFR Part 60.382(b)) (2) The opacity standard set forth in this part shall apply at all times except during period of startup, shutdown,






201

Section VI. Specific Operating Conditions (continued) BG. Emission Units PF1.457, PF1.459, PF1.460, PF1.461, PF1.463, and PF1.464

System 97 – Intermediate Crushing System (Mill #1 and #2) Location UTM (Zone 11, NAD 83) m North m East

PF1.457 Feed Hopper and Feeder Load 4,536,194 554,727 PF1.459 Multi-Deck Screen and Associated Transfers In and Out (in from Conveyor, out to

Conveyor to Cone Crusher and Conveyor) 4,536,191 554,732

PF1.460 Multi Deck Screen Under Conveyor Transfer 4,536,183 554,734 PF1.461 Conveyor Transfer 4,536,175 554,734 PF1.463 Cone Crusher and Associated Transfers In and Out (in from Conveyor, out to

Conveyor) 4,536,172 554,734

PF1.464 Stacker Conveyor 4,536,167 554,773

1. NAC 445B.3405 (NAC 445B.316) Part 70 Program Air Pollution Control Equipment a. Emissions from PF1.457, PF1.459, and PF1.464, each, shall be controlled by commercially designed water sprays. b. Emissions from PF1.460, PF1.461, and PF1.463, each, shall be controlled by enclosures.

2. NAC 445B.3405 (NAC 445B.316) Part 70 Program Operating Parameters a. The maximum allowable throughput rate for PF1.457, PF1.459, PF1.460, PF1.461, PF1.463, and PF1.464, each,

shall not exceed 500.0 tons of ore per any one-hour period, nor more than 4,380,000.0 tons per year, based on a 12-month rolling period.

b. Hours (1) PF1.457, PF1.459, PF1.460, PF1.461, PF1.463, and PF1.464, each, may operate a total of 24 hours per day.













202

Section VI. Specific Operating Conditions (continued) BG. Emission Units PF1.457, PF1.459, PF1.460, PF1.461, PF1.463, and PF1.464 (continued)


Emission Limits (continued) c. The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere









e. NAC 445B.22033 Federally Enforceable SIP Requirement – The maximum allowable discharge of PM10 (particulate matter less than or equal to 10 microns in diameter) to the atmosphere from PF1.457, PF1.459, PF1.460, PF1.461, PF1.463, and PF1.464, each, shall not exceed 68.96 pounds per hour.

f. NAC 445B.22017 Federally Enforceable SIP Requirement – The opacity from PF1.457, PF1.459, PF1.460, PF1.461, PF1.463, and PF1.464, each, shall not equal or exceed 20%.


Monitoring The permittee, upon issuance of this operating permit, shall: a. Monitor and record the throughput (in tons) for PF1.457, PF1.459, PF1.460, PF1.461, PF1.463, and PF1.464, each,

on a daily basis. b. Monitor and record the hours of operation for PF1.457, PF1.459, PF1.460, PF1.461, PF1.463, and PF1.464, each,

on a daily basis. c. Record the average hourly throughput rate (in tons per hour) for PF1.457, PF1.459, PF1.460, PF1.461, PF1.463,

and PF1.464, each, using the daily throughput and the daily hours of operation. d. Record the throughput rate of ore for PF1.457, PF1.459, PF1.460, PF1.461, PF1.463, and PF1.464, each, on a

cumulative monthly basis, for each 12- month rolling period. e. Conduct and record an observation of visible emissions (excluding water vapor) on PF1.457, PF1.459, PF1.460,

PF1.461, PF1.463, and PF1.464 on a monthly basis while operating. The Permittee shall conduct and record a Method 9 visible emission test. Each Method 9 visible emission test shall be conducted by a certified visible emissions reader in accordance with 40 CFR Part 60, Appendix A.




203

Section VI. Specific Operating Conditions (continued) BG. Emission Units PF1.457, PF1.459, PF1.460, PF1.461, PF1.463, and PF1.464 (continued)




g. Inspect the enclosure installed on PF1.460, PF1.461, and PF1.463 on a monthly basis to confirm that the enclosure is in place and functioning properly. If the enclosure is in disrepair, the Permittee shall initiate corrective action within 24 hours and complete corrective action as expediently as practical to ensure that the enclosure is functioning properly. The Permittee must record each inspection of the enclosures, including the date of each inspection and any corrective actions taken.


Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in BG.4. of this section. b. Maintain records of the occurrence and duration of any startup, shutdown, or malfunction in the operation of an



Processing Plants (40 CFR Part 60.380) a. On and after the sixtieth day after achieving the maximum production rate at which PF1.457, PF1.459, PF1.460,

PF1.461, and PF1.463 will be operated, but not later than 180 days after initial startup, the Permittee shall not discharge or cause the discharge into the atmosphere, the following pollutants in excess of the following specified limits: (1) Process fugitive emissions from PF1.457, PF1.459, PF1.460, PF1.461, and PF1.463, each, will not exceed

10 percent opacity. (40 CFR Part 60.382(b)) (2) The opacity standard set forth in this part shall apply at all times except during period of startup, shutdown,

and malfunction. (40 CFR 60.11(c)) b. The Permittee shall conduct a performance test and submit to the Administrator a written report of the results of the

test as specified in 40 CFR 60.8(a). (40 CFR 60.385(a)) c. At all times, including periods of startup, shutdown, and malfunction, owners and operators shall, to the extent





204

Section VI. Specific Operating Conditions (continued) BH. Emission Units S2.085, PF1.465, and PF1.466

System 99A – Portable Batch Plant A Location UTM (Zone 11, NAD 83) m North m East

S2.085 Cement Silo/Guppy #1 Loading 4,537,143 552,645 PF1.465 Cement Silo/Guppy #1 Transfer to Silo/Guppy #1 Conveyor 4,537,142 552,644 PF1.466 Silo/Guppy #1 Conveyor Discharge 4,537,132 552,641


Air Pollution Control Equipment a. Emissions from S2.085 shall be controlled by a vent filter. b. Emissions from PF1.465 and PF1.466 shall be uncontrolled. c. Descriptive Stack Parameters for S2.085


2. NAC 445B.3405 (NAC 445B.316) Part 70 Program Operating Parameters a. The maximum allowable throughput rate for S2.085 shall not exceed 80.0 tons of cement, fly ash, or shotcrete per

any one-hour period, nor more than 60,000.0 tons per year, based on a 12-month rolling period. b. The maximum allowable throughput rate for PF1.465 and PF1.466, each, shall not exceed 20.0 tons of cement, fly

ash, or shotcrete per any one-hour period, nor more than 60,000.0 tons per year, based on a 12-month rolling period. c. Hours

(1) S2.085, PF1.465, and PF1.466, each, may operate a total of 24 hours per day.











205

Section VI. Specific Operating Conditions (continued) BH. Emission Units Emission Units S2.085, PF1.465 and PF1.466 (continued)







(4) NAC 445B.22033 Federally Enforceable SIP Requirement – The maximum allowable discharge of PM10 (particulate matter less than or equal to 10 microns in diameter) to the atmosphere from PF1.465 and PF1.466 shall not exceed 30.51 pounds per hour.

(5) NAC 445B.22017 Federally Enforceable SIP Requirement – The opacity from PF1.465 and PF1.466 shall not equal or exceed 20%.


Monitoring The permittee, upon issuance of this operating permit, shall: a. Monitor and record the throughput for S2.085, PF1.465, and PF1.466, each, on a daily basis. b. Monitor and record the hours of operation for S2.085, PF1.465, and PF1.466, each, on a daily basis. c. Record the average hourly throughput rate (in tons per hour) for S2.085, PF1.465, and PF1.466, each, using the

daily throughput and the daily hours of operation. d. Record the throughput rate of cement, fly ash, or shotcrete for S2.085, PF1.465, and PF1.466, each, on a

cumulative monthly basis, for each 12- month rolling period. e. Conduct and record an observation of visible emissions (excluding water vapor) on the vent filter on a monthly basis



g. Conduct and record an observation of visible emissions (excluding water vapor) on PF1.465 and PF1.466 on a monthly basis while operating. The observer shall stand at a distance sufficient to provide a clear view of the emissions with the sun oriented to their back. If visible emissions are observed, the Permittee shall conduct and record a Method 9 visible emission test. Each Method 9 visible emission test shall be conducted by a certified visible emissions reader in accordance with 40 CFR Part 60, Appendix A.


Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in BH.4. of this section.




206

Section VI. Specific Operating Conditions (continued) BI. Emission Units S2.086, PF1.467, and PF1.468

System 99B – Portable Batch Plant B Location UTM (Zone 11, NAD 83) m North m East

S2.086 Cement Silo/Guppy #2 Loading 4,537,143 552,639 PF1.467 Cement Silo/Guppy #2 Transfer to Silo/Guppy #2 Conveyor 4,537,142 552,638 PF1.468 Silo/Guppy #2 Conveyor Discharge 4,537,131 552,640


Air Pollution Control Equipment a. Emissions from S2.086 shall be controlled by a vent filter. b. Emissions from PF1.467 and PF1.468 shall be uncontrolled. c. Descriptive Stack Parameters for S2.086



any one-hour period, nor more than 60,000.0 tons per year, based on a 12-month rolling period. b. The maximum allowable throughput rate for PF1.467 and PF1.468, each, shall not exceed 20.0 tons of cement, fly

ash, or shotcrete per any one-hour period, nor more than 60,000.0 tons per year, based on a 12-month rolling period. c. Hours

(1) S2.086, PF1.467, and PF1.468, each, may operate a total of 24 hours per day.











207

Section VI. Specific Operating Conditions (continued) BI. Emission Units Emission Units S2.086, PF1.467, and PF1.468 (continued)







(4) NAC 445B.22033 Federally Enforceable SIP Requirement – The maximum allowable discharge of PM10 (particulate matter less than or equal to 10 microns in diameter) to the atmosphere from PF1.467 and PF1.468 shall not exceed 30.51 pounds per hour.

(5) NAC 445B.22017 Federally Enforceable SIP Requirement – The opacity from PF1.467 and PF1.468 shall not equal or exceed 20%.



daily throughput and the daily hours of operation. d. Record the throughput rate of cement, fly ash, or shotcrete for S2.086, PF1.467, and PF1.468, each, on a




g. Conduct and record an observation of visible emissions (excluding water vapor) on PF1.467 and PF1.468 on a monthly basis while operating. The observer shall stand at a distance sufficient to provide a clear view of the emissions with the sun oriented to their back. If visible emissions are observed, the Permittee shall conduct and record a Method 9 visible emission test. Each Method 9 visible emission test shall be conducted by a certified visible emissions reader in accordance with 40 CFR Part 60, Appendix A.


Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in BI.4. of this section.




208

Section VI. Specific Operating Conditions (continued) BJ. Emission Units PF1.469 and PF1.470

System 99C – Portable Batch Plant C Location UTM (Zone 11, NAD 83) m North m East

PF1.469 Bin Loading 4,537,133 552,635 PF1.470 Bin Transfer to Bin Conveyor 4,537,132 552,634


Air Pollution Control Equipment a. Emissions from PF1.469 shall be uncontrolled. b. Emissions from PF1.470 shall be controlled by an enclosure.


Operating Parameters a. The maximum allowable throughput rate for PF1.469 and PF1.470, each, shall not exceed 300.0 tons of aggregate

and sand per any one-hour period, nor more than 900,000.0 tons per year, based on a 12-month rolling period. b. Hours











c. NAC 445B.22033 Federally Enforceable SIP Requirement – The maximum allowable discharge of PM10 (particulate matter less than or equal to 10 microns in diameter) to the atmosphere from PF1.469 and PF1.470, each, shall not exceed 63.0 pounds per hour.

d. NAC 445B.22017 Federally Enforceable SIP Requirement – The opacity from PF1.469 and PF1.470, each, shall not equal or exceed 20%.




209

Section VI. Specific Operating Conditions (continued) BJ. Emission Units PF1.469 and PF1.470 (continued)



throughput and the daily hours of operation. d. Record the throughput rate of aggregate and sand for PF1.469 and PF1.470, each, on a cumulative monthly basis,

for each 12- month rolling period. e. Conduct and record an observation of visible emissions (excluding water vapor) on PF1.469 and PF1.470 on a




Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in BJ.4. of this section. b. Maintain records of the occurrence and duration of any startup, shutdown, or malfunction in the operation of an



Mineral Processing Plants (40 CFR Part 60.670) a. On and after the sixtieth day after achieving the maximum production rate at which PF1.469 and PF1.470 will be

operated, but not later than 180 days after initial startup, the Permittee shall not discharge or cause the discharge into the atmosphere, the following pollutants in excess of the following specified limits: (1) Process fugitive emissions from PF1.469 and PF1.470, each, will not exceed 10 percent opacity. (40 CFR








210

Section VI. Specific Operating Conditions (continued) BK. Emission Unit PF1.476

System 99F – Portable Batch Plant F Location UTM (Zone 11, NAD 83) m North m East

PF1.476 Central Mixer Loading 4,537,132 552,639



Operating Parameters a. The maximum allowable throughput rate for PF1.476 shall not exceed 360.0 tons of sand, aggregate, fly ash, and

shotcrete per any one-hour period, nor more than 1,080,000.0 tons per year, based on a 12-month rolling period. b. The maximum allowable throughput rate for PF1.476 shall not exceed 20.0 tons of cement per any one-hour period,

nor more than 60,000.0 tons per year, based on a 12-month rolling period. c. Hours









hours of operation. d. Record the throughput rate of sand, aggregate, fly ash, and shotcrete for PF1.476 on a cumulative monthly basis,

for each 12- month rolling period. d. Record the throughput rate of cement for PF1.476 on a cumulative monthly basis, for each 12- month rolling period.




211

Section VI. Specific Operating Conditions (continued) BK. Emission Unit PF1.476 (continued)


Monitoring (continued) The permittee, upon issuance of this operating permit, shall: e. Conduct and record an observation of visible emissions (excluding water vapor) on PF1.476 on a monthly basis




Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in BK.4. of this section. b. Maintain records of the occurrence and duration of any startup, shutdown, or malfunction in the operation of an



Mineral Processing Plants (40 CFR Part 60.670) a. On and after the sixtieth day after achieving the maximum production rate at which PF1.476 will be operated, but

not later than 180 days after initial startup, the Permittee shall not discharge or cause the discharge into the atmosphere, the following pollutants in excess of the following specified limits: (1) Process fugitive emissions from PF1.476 will not exceed 10 percent opacity. (40 CFR Part 60.672(b)). (2) The opacity standard set forth in this part shall apply at all times except during period of startup, shutdown,







212

Section VI. Specific Operating Conditions (continued) BL. Emission Units PF1.325 and S2.087


PF1.325 Delivery Truck Discharge 4,539,598 551,817 S2.087 Silo #3 Loading (includes Screw Conveyor Discharge, formerly System 60

PF1.326, fully enclosed. Also includes transfer to Screw Conveyor, PF1.477, and Screw Conveyor Discharge, PF1.478, both fully enclosed)

4,539,600 551,800


Air Pollution Control Equipment a. Emissions from PF1.325 shall be controlled by an enclosure. b. Emissions from S2.087 shall be controlled by a vent filter. c. Descriptive Stack Parameters for S2.087


2. NAC 445B.3405 (NAC 445B.316) Part 70 Program Operating Parameters a. The maximum allowable throughput rate for PF1.325 shall not exceed 90.0 tons of cement, fly ash, and shotcrete

per any one-hour period, nor more than 45,000.0 tons per year, based on a 12-month rolling period. b. The maximum allowable throughput rate for S2.087 shall not exceed 80.0 tons of cement, fly ash, and shotcrete per


(1) PF1.325 and S2.087, each, may operate a total of 24 hours per day.











213

Section VI. Specific Operating Conditions (continued) BL. Emission Units PF1.325 and S2.087 (continued)










Monitoring The permittee, upon issuance of this operating permit, shall: a. Monitor and record the throughput for PF1.325 and S2.087, each, on a daily basis. b. Monitor and record the hours of operation for PF1.325 and S2.087, each, on a daily basis. c. Record the average hourly throughput rate (in tons per hour) for PF1.325 and S2.087, each, using the daily

throughput and the daily hours of operation. d. Record the throughput rate of cement, fly ash, and shotcrete for PF1.325 and S2.087, each, on a cumulative

monthly basis, for each 12- month rolling period. e. Conduct and record an observation of visible emissions (excluding water vapor) on PF1.325 on a monthly basis



e. Conduct and record an observation of visible emissions (excluding water vapor) on the vent filter on a monthly basis while operating. The observer shall stand at a distance sufficient to provide a clear view of the emissions with the sun oriented to their back. If visible emissions are observed, the Permittee shall conduct and record a Method 9 visible emission test. Each Method 9 visible emission test must be conducted by a certified visible emissions reader in accordance with 40 CFR Part 60, Appendix A.

h. Inspect the vent filter installed on S2.087 in accordance with the manufacturer’s operation and maintenance manual and record the results (e.g. the condition of the filter fabric), and any corrective actions taken. If no operation and maintenance manual is available, inspections shall be conducted monthly.


Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in BL.4. of this section.




214

Section VI. Specific Operating Conditions (continued) BM. Emission Units PF1.479 and PF1.480

System 101 – Meikle Shotcrete Loadout Station Extension Location UTM (Zone 11, NAD 83) m North m East

PF1.479 Conveyor #2 Discharge 4,539,596 551,806 PF1.480 Conveyor #3 Discharge 4,539,596 551,804


Air Pollution Control Equipment Emissions from PF1.479 and PF1.480 shall be uncontrolled.


Operating Parameters a. The maximum allowable throughput rate for PF1.479 and PF1.480, each, shall not exceed 90.0 tons of cement, fly

ash, and shotcrete per any one-hour period, nor more than 45,000.0 tons per year, based on a 12-month rolling period.

b. Hours (1) PF1.479 and PF1.480, each, may operate a total of 24 hours per day.


from PF1.479 and PF1.480, each, the following pollutants in excess of the following specified limits: b. NAC 445B.305 Part 70 Program – The discharge of PM (particulate matter) to the atmosphere shall not exceed 0.43

pound per hour, nor more than 0.11 ton per year, based on 12-month rolling period. c. NAC 445B.305 Part 70 Program – The discharge of PM10 (particulate matter less than or equal to 10 microns in


d. NAC 445B.305 Part 70 Program – The discharge of PM2.5 (particulate matter less than or equal to 2.5 microns in diameter) to the atmosphere shall not exceed 0.038 pound per hour, nor more than 0.01 ton per year, based on 12-month rolling period.

e. NAC 445B.22033 Federally Enforceable SIP Requirement – The maximum allowable discharge of PM10 (particulate matter less than or equal to 10 microns in diameter) to the atmosphere from PF1.479 and PF1.480, each, shall not exceed 50.23 pounds per hour.

f. NAC 445B.22017 Federally Enforceable SIP Requirement – The opacity from PF1.479 and PF1.480, each, shall not equal or exceed 20%.



throughput and the daily hours of operation. d. Record the throughput rate of cement, fly ash, and shotcrete for PF1.479 and PF1.480, each, on a cumulative

monthly basis, for each 12- month rolling period. e. Conduct and record an observation of visible emissions (excluding water vapor) on PF1.479 and PF1.480 on a





215

Section VI. Specific Operating Conditions (continued) BM. Emission Units PF1.479 and PF1.480 (continued)


Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in BM.4. of this section.




216

Section VI. Specific Operating Conditions (continued) BN. Emission Units S2.088, PF1.481, and PF1.482

System 102 – Rodeo Shotcrete Loadout Station Silo #1 Location UTM (Zone 11, NAD 83) m North m East

S2.088 Silo #1 Loading 4,538,138 552,144 PF1.481 Silo #1 Transfer to Weigh Hopper 4,538,137 552,141 PF1.482 Weigh Hopper Discharge to Underground 4,538,134 552,135


Air Pollution Control Equipment a. Emissions from S2.088 shall be controlled by a vent filter. b. Emissions from PF1.481 and PF1.482, each, shall be controlled by an enclosure. c. Descriptive Stack Parameters for S2.088


2. NAC 445B.3405 (NAC 445B.316) Part 70 Program Operating Parameters a. The maximum allowable throughput rate for S2.088, PF1.481, and PF1.482, each shall not exceed 80.0 tons of

cement, fly ash, and shotcrete per any one-hour period, nor more than 60,000.0 tons per year, based on a 12-month rolling period.

b. Hours (1) S2.088, PF1.481, and PF1.482, each, may operate a total of 24 hours per day.











217

Section VI. Specific Operating Conditions (continued) BN. Emission Units S2.088, PF1.481, and PF1.482 (continued)







(4) NAC 445B.22033 Federally Enforceable SIP Requirement – The maximum allowable discharge of PM10 (particulate matter less than or equal to 10 microns in diameter) to the atmosphere from PF1.481 and PF1.482, each, shall not exceed 49.06 pounds per hour.

(5) NAC 445B.22017 Federally Enforceable SIP Requirement – The opacity from PF1.481 and PF1.482, each, shall not equal or exceed 20%.



daily throughput and the daily hours of operation. d. Record the throughput rate of cement, fly ash, and shotcrete for S2.088, PF1.481, and PF1.482, each, on a




g. Inspect the enclosure installed on PF1.481, and PF1.482 on a monthly basis to confirm that the enclosure is in place and functioning properly. If the enclosure is in disrepair, the Permittee shall initiate corrective action within 24 hours and complete corrective action as expediently as practical to ensure that the enclosure is functioning properly. The Permittee must record each inspection of the enclosures, including the date of each inspection and any corrective actions taken.

h. Conduct and record an observation of visible emissions (excluding water vapor) on PF1.481 and PF1.482 on a monthly basis while operating. The observer shall stand at a distance sufficient to provide a clear view of the emissions with the sun oriented to their back. If visible emissions are observed, the Permittee shall conduct and record a Method 9 visible emission test. Each Method 9 visible emission test shall be conducted by a certified visible emissions reader in accordance with 40 CFR Part 60, Appendix A.


Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in BN.4. of this section.




218

Section VI. Specific Operating Conditions (continued) BO. Emission Units PF1.483 and PF1.485

System 103A – Ore Fines Feed System Location UTM (Zone 11, NAD 83) m North m East

PF1.483 Hopper, Loading (Hopper discharge is fully enclosed, formerly PF1.484) 4,538,470 552,221 PF1.485 Screw Conveyor Transfer to Bucket Elevator 4,538,467 552,221


Air Pollution Control Equipment a. Emissions from PF1.483 shall be uncontrolled. b. Emissions from PF1.485 shall be controlled by an enclosure.


Operating Parameters a. The maximum allowable throughput rate for PF1.483 and PF1.485, each, shall not exceed 30.0 tons of ore fines per

any one-hour period, nor more than 262,800.0 tons per year, based on a 12-month rolling period. b. Hours
















219

Section VI. Specific Operating Conditions (continued) BO. Emission Units PF1.483 and PF1.485 (continued)



throughput and the daily hours of operation. d. Record the throughput rate of ore fines for PF1.483 and PF1.485, each, on a cumulative monthly basis, for each 12-

month rolling period. e. Conduct and record an observation of visible emissions (excluding water vapor) on PF1.483 and PF1.485 on a




Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in BO.4. of this section. b. Maintain records of the occurrence and duration of any startup, shutdown, or malfunction in the operation of an



Processing Plants (40 CFR Part 60.380) a. On and after the sixtieth day after achieving the maximum production rate at which PF1.483 and PF1.485 will be








220

Section VI. Specific Operating Conditions (continued) BP. Emission Units S2.316.1 through S2.316.4

System 103B – Ore Fines Feed System (Ore Fines Drying and Storage System) Location UTM (Zone 11, NAD 83) m North m East

S2.316.1 Fluid Bed Dryer

4,538,462 552,217 S2.316.2 Surge Bin S2.316.3 Dense Phase Pneumatic Conveying System S2.316.4 Ore Fines Silo (Loading)


Air Pollution Control Equipment a. S2.316.1 through S2.316.4 shall be controlled by a baghouse (DC-211). b. Descriptive Stack Parameters for System 103B


2. NAC 445B.3405 (NAC 445B.316) Part 70 Program Operating Parameters a. S2.316.1 may consume propane. b. The maximum allowable fuel consumption rate for S2.316.1 shall not exceed 100.0 gallons of propane per any one-

hour period, nor more than 876,000.0 gallons per year, based on a 12-month rolling period. c. The maximum allowable throughput rate for S2.316.1 through S2.316.4, each, shall not exceed 30.0 tons of ore

fines per any one-hour period, nor more than 262,800.0 tons per year, based on a 12-month rolling period. d. Hours


3. NAC 445B.3405 (NAC 445B.316) Part 70 Program Emission Limits The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from S2.316.1 through S2.316.4, combined, the following pollutants in excess of the following specified limits: a. NAC 445B.305 Part 70 Program – The discharge of PM (particulate matter) to the atmosphere shall not exceed 2.55








h. NAC 445B.2203 Federally Enforceable SIP Requirement – The maximum allowable discharge of PM10 (particulate matter less than or equal to 10 microns in diameter) to the atmosphere from System 103B shall not exceed 0.60 pound per MMBtu.




221

Section VI. Specific Operating Conditions (continued) BP. Emission Units S2.316.1 through S2.316.4 (continued)


Emission Limits (continued) The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from S2.316.1 through S2.316.4, combined, the following pollutants in excess of the following specified limits: i. NAC 445B.22033 Federally Enforceable SIP Requirement – The maximum allowable discharge of PM10 (particulate

matter less than or equal to 10 microns in diameter) to the atmosphere from S2.316.1 through S2.316.4, each, shall not exceed 39.96 pounds per hour.

j. NAC 445B.22017 Federally Enforceable SIP Requirement – The opacity from System 103B shall not equal or exceed 20%.

k. NAC 445B.22047 Federally Enforceable SIP Requirement – The maximum allowable discharge of Sulfur to the atmosphere from System 103B shall not exceed 6.41 pounds per hour.








f. Method 7E in Appendix A of 40 CFR Part 60 shall be used to determine the nitrogen oxides concentration. Each test will be run for a minimum of one hour.


h. Method 10 in Appendix A of 40 CFR Part 60 shall be used to determine the carbon monoxide concentration. Each test will be run for a minimum of one hour.





222

Section VI. Specific Operating Conditions (continued) BP. Emission Units Emission Units S2.316.1 through S2.316.4 (continued)


Monitoring The permittee, upon issuance of this operating permit, shall: a. Monitor and record the hours of operation while consuming propane for S2.316.1 on a daily basis. b. Monitor and record the consumption rate of propane on a daily basis for S2.316.1 (in gallons) by multiplying the

maximum hourly fuel consumption rate as stated in BP.2.b. of this section and the total daily hours of operation, as determined under BP.5.a. of this section.

c. Record the consumption rate of propane (in gallons) for S2.206 on a cumulative monthly basis, for each 12-month rolling period.

d. Monitor and record the throughput for S2.316.1 through S2.316.4, each, on a daily basis. e. Monitor and record the hours of operation for S2.316.1 through S2.316.4, each, on a daily basis. f. Record the average hourly throughput rate (in tons per hour) for S2.316.1 through S2.316.4, each, using the daily

throughput and the daily hours of operation. g. Record the throughput rate of ore fines for S2.316.1 through S2.316.4, each, on a cumulative monthly basis, for

each 12- month rolling period. h. Conduct and record an observation of visible emissions (excluding water vapor) on the baghouse controlling System

103B on a monthly basis while operating. The observer shall stand at a distance sufficient to provide a clear view of the emissions with the sun oriented to their back. If visible emissions are observed, the Permittee shall conduct and record a Method 9 visible emission test. Each Method 9 visible emission test must be conducted by a certified visible emissions reader in accordance with 40 CFR Part 60, Appendix A.

i. Inspect the baghouses installed on System 103B in accordance with the manufacturer’s operation and maintenance manual and record the results (e.g. the condition of the filter fabric), and any corrective actions taken. If no operation and maintenance manual is available, inspections shall be conducted monthly.


Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in BP.5. of this section. b. Maintain records of the occurrence and duration of any startup, shutdown, or malfunction in the operation of an



Processing Plants (40 CFR Part 60.380) a. On and after the sixtieth day after achieving the maximum production rate at which S2.316.2 through S2.316.4,

each, will be operated, but not later than 180 days after initial startup, the Permittee shall not discharge or cause the discharge into the atmosphere, the following pollutants in excess of the following specified limits: (1) Particulate matter in excess of 0.05 grams per dry standard cubic meter (10.13 lb/hr). (40 CFR 60.382(a)(1)) (2) Emissions from S2.316.2 through S2.316.4 will not exceed 7 percent opacity. (40 CFR 60.382(a)(2)) (3) The opacity standard set forth in this part shall apply at all times except during period of startup, shutdown,






223

Section VI. Specific Operating Conditions (continued) BP. Emission Units Emission Units S2.316.1 through S2.316.4 (continued)


a. Upon issuance of this operating permit, Permittee shall conduct monitoring, recordkeeping, and reporting for the baghouse (DC-211) as listed in Table BP-1 below:

Table BP-1:

Part 64 CAM Monitoring for DC-211 CAM Performance


Measurement Approach Conduct and record an assessment of the visible emissions (excluding water vapor) from the exhaust stack of DC-211 on a monthly basis. If the visible emission survey detects any visible emissions, the Permitee will conduct and record a Method 9 (or an alternative EPA reference method approved by the director) visible emissions test.



An excursion is defined as a pressure drop reading of less than 0.5 inches of water or greater than 10.0 inches of water. Excursions trigger an inspection, corrective action, and a reporting requirement.


Pressure taps are located at the baghouse inlet and outlet. The differential pressure (DP) monitor has a minimum accuracy of ±2% of full scale.



Annually


The observer will be Method 9 certified. The DP monitor has a one year no drift guarantee. The pressure taps are checked for plugging anytime there are continuous reading below the lower end of the indicator range.

Monitoring Frequency A visible emission survey is conducted and recorded monthly.






One-hour average.








224

Section VI. Specific Operating Conditions (continued) BQ. Emission Unit S2.317

System 104 – Fuel Oil Storage Tank Location UTM (Zone 11, NAD 83) m North m East

S2.317 Fuel Oil Storage Tank, 250,000 gallons 4,536,426 554,605

1. NAC 445B.3405 (NAC 445B.316) Part 70 Program Air Pollution Control Equipment a. S2.317 shall be controlled by submerged fill. b. Descriptive Stack Parameters for S2.317

Shell Diameter: 45 feet Stack Height: 24 feet Capacity: 250,000 gallons

2. NAC 445B.3405 (NAC 445B.316) Part 70 Program Operating Parameters a. S2.317 shall only be used to store #2 fuel oil. b. The maximum allowable throughput rate for S2.317 shall not exceed more than 5,600,000.0 gallons per year, based

on a 12-month rolling period. c. Hours

S2.317 may operate a total of 24 hours per day.

3. NAC 445B.3405 (NAC 445B.316) Part 70 Program Emission Limits The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from S2.317, the following pollutants in excess of the following specified limits: a. NAC 445B.305 Part 70 Program – The discharge of VOCs (volatile organic compounds) to the atmosphere shall not

exceed more than 0.084 ton per year, based on 12-month rolling period. b. NAC 445B.22017 Federally Enforceable SIP Requirement – The opacity from S2.317 shall not equal or exceed

20%.

4. NAC 445B.3405 (NAC 445B.316) Part 70 Program Monitoring The permittee, upon issuance of this operating permit, shall: a. Monitor and record the throughput of #2 fuel oil, in gallons, loaded into, or dispensed from, S2.317, on a monthly

basis, as determined from vendor invoices for tank loading or fuel pump non-resettable meter for tank dispensing. b. Monitor and record the total yearly throughput rate in gallons per year. The annual throughput shall be determined at

the end of each month as the sum of the monthly throughput rates for the year for all previous months of that year.

5. NAC 445B.3405 (NAC 445B.316) Part 70 Program Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in BQ.4. of this section.




225

Section VI. Specific Operating Conditions (continued) BR. Emission Unit S2.319

System 106 – Autoclave Mixing Tank Location UTM (Zone 11, NAD 83) m North m East

S2.319 Autoclave Mixing Tank Loading 4,535,957 554,773

1. NAC 445B.3405 (NAC 445B.316) Part 70 Program Air Pollution Control Equipment Emissions from S2.319 shall be controlled by a wet scrubber (WS-206).


Operating Parameters a. The maximum allowable throughput rate for S2.319 shall not exceed 10.0 tons of lime or soda ash per any one-hour










hours of operation. d. Record the throughput rate of lime or soda ash for S2.319 on a cumulative monthly basis, for each 12- month rolling

period. e. Conduct and record an observation of visible emissions (excluding water vapor) on the wet scrubber on a monthly





226

Section VI. Specific Operating Conditions (continued) BR. Emission Unit S2.319 (continued)


Monitoring (continued) The permittee, upon issuance of this operating permit, shall: f. Inspect the wet scrubber installed on S2.319 in accordance with the manufacturer’s operation and maintenance

manual and record the results (e.g. the condition of the water spray nozzles), and any corrective actions taken. If no operation and maintenance manual is available, inspections shall be conducted monthly.

g. Install, calibrate, operate, and maintain devices for the measurement of the pressure drop and water flow rate through the wet scrubber (WS-206).

h. Monitor and record the pressure drop and water flow rate through the wet scrubber (WS-206) each day that S2.319 is in operation. Record any monitored occurrences when the pressure drop or water flow rate falls outside the specified operating range and record any corrective actions taken.

i. Maintain records to the specified operating ranges for the wet scrubber (WS-206) on site and available for inspection upon request. The specified operating ranges will be determined by the permittee based on operating experience and the manufacturer’s recommendations.










Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in BR.4. of this section.




227

Section VI. Specific Operating Conditions (continued) BS. Emission Units PF1.488 and PF1.490 System 107 – Additional Equipment for Intermediate Crushing System (Mill #1 and Mill #2)

Location UTM (Zone 11, NAD 83) m North m East

PF1.488 Cone Crusher and Associated Transfers In and Out (in from Conveyor, out to Conveyor)

4,536,172 554,730

PF1.490 Multi-Deck Screen and Associated Transfers In and Out (in from Cone Crusher Conveyors, out to Conveyor)

4,536,183 554,730


Air Pollution Control Equipment Emissions from PF1.488 and PF1.490, each, shall be controlled by a commercially designed water spray.


Operating Parameters a. The maximum allowable throughput rate for PF1.488 and PF1.490, each, shall not exceed 500.0 tons of ore per any

















228

Section VI. Specific Operating Conditions (continued) BS. Emission Units PF1.488 and PF1.490 (continued)



throughput and the daily hours of operation. d. Record the throughput rate of ore for PF1.488 and PF1.490, each, on a cumulative monthly basis, for each 12-

month rolling period. e. Conduct and record an observation of visible emissions (excluding water vapor) on PF1.488 and PF1.490 on a




Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in BS.4. of this section. b. Maintain records of the occurrence and duration of any startup, shutdown, or malfunction in the operation of an



Processing Plants (40 CFR Part 60.380) a. On and after the sixtieth day after achieving the maximum production rate at which PF1.488 and PF1.490, each, will

be operated, but not later than 180 days after initial startup, the Permittee shall not discharge or cause the discharge into the atmosphere, the following pollutants in excess of the following specified limits: (1) Process fugitive emissions from PF1.488 and PF1.490, each, will not exceed 10 percent opacity. (40 CFR







229

Section VI. Specific Operating Conditions (continued) BT. Emission Unit PF1.491

System 108 – Roaster Sulfur Prill Addition System Location UTM (Zone 11, NAD 83) m North m East

PF1.491 Truck Unloading to Grizzly 4,538,610 552,180

1. NAC 445B.3405 (NAC 445B.316) Part 70 Program Air Pollution Control Equipment Emissions from PF1.491 shall be controlled by water sprays with surfactant.


Operating Parameters a. The maximum allowable throughput rate for PF1.491 shall not exceed 300.0 tons of sulfur per any one-hour period,

nor more than 175,200.0 tons per year, based on a 12-month rolling period. b. Hours









hours of operation. d. Record the throughput rate of sulfur for PF1.491 on a cumulative monthly basis, for each 12- month rolling period. e. Conduct and record an observation of visible emissions (excluding water vapor) on PF1.491 on a monthly basis





230

Section VI. Specific Operating Conditions (continued) BT. Emission Unit PF1.491 (continued)





Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in BT.4. of this section.




231

Section VI. Specific Operating Conditions (continued) BU. Emission Unit PF1.493


PF1.493 Grizzly Discharge to Truck Unloading Conveyor 4,538,609 552,181


















232

Section VI. Specific Operating Conditions (continued) BU. Emission Unit PF1.493 (continued)





Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in BU.4. of this section.




233

Section VI. Specific Operating Conditions (continued) BV. Emission Unit PF1.494


PF1.494 Truck Unloading Conveyor Transfer to Main Conveyor 4,538,593 552,182


















234

Section VI. Specific Operating Conditions (continued) BV. Emission Unit PF1.494 (continued)





Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in BV.4. of this section.




235

Section VI. Specific Operating Conditions (continued) BW. Emission Units PF1.498, PF1.495.1, and PF1.495.2


PF1.498 Main Conveyor Transfer to Sulfur Prill Silo (Loading) 4,538,486 552,172 PF1.495.1 Silo Discharge to South Roaster Conveyor 4,538,461 552,171 PF1.495.2 Silo Discharge to North Roaster Conveyor 4,538,480 552,172


Air Pollution Control Equipment Emissions from PF1.498, PF1.495.1, and PF1.495.2 shall be controlled by water sprays with surfactant.



nor more than 175,200.0 tons per year, based on a 12-month rolling period. b. The maximum allowable throughput rate for PF1.495.1, and PF1.495.2, each, shall not exceed 10.0 tons of sulfur

per any one-hour period, nor more than 87,600.0 tons per year, based on a 12-month rolling period. c. Hours

(1) PF1.498, PF1.495.1, and PF1.495.2, each, may operate a total of 24 hours per day.







b. The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from PF1.495.1, and PF1.495.2, each, the following pollutants in excess of the following specified limits: (1) NAC 445B.305 Part 70 Program – The discharge of PM (particulate matter) to the atmosphere shall not




(4) NAC 445B.22033 Federally Enforceable SIP Requirement – The maximum allowable discharge of PM10 (particulate matter less than or equal to 10 microns in diameter) to the atmosphere from PF1.495.1, and PF1.495.2, each, shall not exceed 19.18 pounds per hour.

c. NAC 445B.22017 Federally Enforceable SIP Requirement – The opacity from PF1.498, PF1.495.1, and PF1.495.2 shall not equal or exceed 20%.




236

Section VI. Specific Operating Conditions (continued) BW. Emission Units PF1.498, PF1.495.1, and PF1.495.2 (continued)

4. NAC 445B.3405 (NAC 445B.316) Part 70 Program Monitoring The permittee, upon issuance of this operating permit, shall: a. Monitor and record the throughput for PF1.498, PF1.495.1, and PF1.495.2, each, on a daily basis. b. Monitor and record the hours of operation for PF1.498, PF1.495.1, and PF1.495.2, each, on a daily basis. c. Record the average hourly throughput rate (in tons per hour) for PF1.498, PF1.495.1, and PF1.495.2, each, using

the daily throughput and the daily hours of operation. d. Record the throughput rate of sulfur for PF1.498, PF1.495.1, and PF1.495.2, each, on a cumulative monthly basis,

for each 12- month rolling period. e. Conduct and record an observation of visible emissions (excluding water vapor) on PF1.498, PF1.495.1, and

PF1.495.2 on a monthly basis while operating. The observer shall stand at a distance sufficient to provide a clear view of the emissions with the sun oriented to their back. If visible emissions are observed, the Permittee shall conduct and record a Method 9 visible emission test. Each Method 9 visible emission test shall be conducted by a certified visible emissions reader in accordance with 40 CFR Part 60, Appendix A.



Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in BW.4. of this section.




237

Section VI. Specific Operating Conditions (continued) BX. Emission Units PF1.496 and PF1.497

System 113 – Alternate Roaster Prill Addition System Location UTM (Zone 11, NAD 83) m North m East

PF1.496 Roaster #1 Sulfur/Carbon Fines Feed Hopper 4,538,470 552,144 PF1.497 Roaster #2 Sulfur/Carbon Fines Feed Hopper

1. NAC 445B.3405 (NAC 445B.316) Part 70 Program Air Pollution Control Equipment Emissions from PF1.496 and PF1.497, each, shall be controlled by an enclosure.


Operating Parameters a. The maximum allowable throughput rate for PF1.496 and PF1.497, each, shall not exceed 10.0 tons of sulfur,

carbon fines, or ore per any one-hour period, nor more than 87,600.0 tons per year, based on a 12-month rolling period.

b. Hours (1) PF1.496 and PF1.497, each, may operate a total of 24 hours per day.

3. NAC 445B.3405 (NAC 445B.316) Part 70 Program Emission Limits The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from PF1.496 and PF1.497, each, the following pollutants in excess of the following specified limits: a. NAC 445B.305 Part 70 Program – The discharge of PM (particulate matter) to the atmosphere shall not exceed






4. NAC 445B.3405 (NAC 445B.316) Part 70 Program Monitoring The permittee, upon issuance of this operating permit, shall: a. Monitor and record the throughput for PF1.496 and PF1.497, each, on a daily basis. b. Monitor and record the hours of operation for PF1.496 and PF1.497, each, on a daily basis. c. Record the average hourly throughput rate (in tons per hour) for PF1.496 and PF1.497, each, using the daily

throughput and the daily hours of operation. d. Record the throughput rate of sulfur, carbon fines, or ore for PF1.496 and PF1.497, each, on a cumulative monthly

basis, for each 12- month rolling period. e. Conduct and record an observation of visible emissions (excluding water vapor) on PF1.496 and PF1.497, each, on a





238

Section VI. Specific Operating Conditions (continued) BX. Emission Units PF1.496 and PF1.497 (continued)


Monitoring (continued) The permittee, upon issuance of this operating permit, shall: f. Inspect the enclosure installed on PF1.496 and PF1.497 on a monthly basis to confirm that the enclosure is in place

and functioning properly. If the enclosure is in disrepair, the Permittee shall initiate corrective action within 24 hours and complete corrective action as expediently as practical to ensure that the enclosure is functioning properly. The Permittee must record each inspection of the enclosures, including the date of each inspection and any corrective actions taken.


Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in BX.4. of this section. b. Maintain records of the occurrence and duration of any startup, shutdown, or malfunction in the operation of an



Processing Plants (40 CFR Part 60.380) a. On and after the sixtieth day after achieving the maximum production rate at which PF1.496 and PF1.497 will be



and malfunction. (40 CFR 60.11(c)) b. The Permittee shall conduct a performance test and submit to the Administrator a written report of the results of the

test as specified in 40 CFR 60.8(a). (40 CFR 60.385(a)) c. At all times, including periods of startup, shutdown, and malfunction, owners and operators shall, to the extent





239

Section VI. Specific Operating Conditions (continued) BY. Emission Units PF1.499 and PF1.500


PF1.499 Roaster Conveyor Transfer to Hopper (South) 4,538,461 552,163 PF1.500 Roaster Conveyor Transfer to Hopper (North) 4,538,480 552,163


Air Pollution Control Equipment Emissions from PF1.499 and PF1.500, each, shall be controlled by water sprays with surfactant.


Operating Parameters a. The maximum allowable throughput rate for PF1.499 and PF1.500, each, shall not exceed 10.0 tons of sulfur per

any one-hour period, nor more than 87,600.0 tons per year, based on a 12-month rolling period. b. Hours


3. NAC 445B.3405 (NAC 445B.316) Part 70 Program Emission Limits The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from PF1.499 and PF1.500, each, the following pollutants in excess of the following specified limits: a. NAC 445B.305 Part 70 Program – The discharge of PM (particulate matter) to the atmosphere shall not exceed

0.012 pounds per hour, nor more than 0.053 ton per year, based on 12-month rolling period. b. NAC 445B.305 Part 70 Program – The discharge of PM10 (particulate matter less than or equal to 10 microns in





4. NAC 445B.3405 (NAC 445B.316) Part 70 Program Monitoring The permittee, upon issuance of this operating permit, shall: a. Monitor and record the throughput for PF1.499 and PF1.500, each, on a daily basis. b. Monitor and record the hours of operation for PF1.499 and PF1.500, each, on a daily basis. c. Record the average hourly throughput rate (in tons per hour) for PF1.499 and PF1.500, each, using the daily

throughput and the daily hours of operation. d. Record the throughput rate of sulfur for PF1.499 and PF1.500, each, on a cumulative monthly basis, for each 12-

month rolling period. e. Conduct and record an observation of visible emissions (excluding water vapor) on PF1.499 and PF1.500, each, on

a monthly basis while operating. The observer shall stand at a distance sufficient to provide a clear view of the emissions with the sun oriented to their back. If visible emissions are observed, the Permittee shall conduct and record a Method 9 visible emission test. Each Method 9 visible emission test shall be conducted by a certified visible emissions reader in accordance with 40 CFR Part 60, Appendix A.




240

Section VI. Specific Operating Conditions (continued) BY. Emission Units PF1.499 and PF1.500 (continued)





Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in BY.4. of this section.




241

Section VI. Specific Operating Conditions (continued) BZ. Emission Units S2.325 and PF1.501

System 117 – Regen 1 Feed System Location UTM (Zone 11, NAD 83) m North m East

S2.325 Regen 1 Silo/Guppy Loading 4,536,395 554,477 PF1.501 Regen 1 Silo/Guppy Discharge

1. NAC 445B.3405 (NAC 445B.316) Part 70 Program Air Pollution Control Equipment a. Emissions from S2.325 shall be controlled by a vent filter. b. PF1.501 shall be uncontrolled. c. Descriptive Stack Parameters for S2.325


2. NAC 445B.3405 (NAC 445B.316) Part 70 Program Operating Parameters a. The maximum allowable throughput rate for S2.325 shall not exceed 40.0 tons of Regen 1 and Regen 2 per any one-

hour period, nor more than 13,500.0 tons per year, based on a 12-month rolling period. b. The maximum allowable throughput rate for PF1.501 shall not exceed 20.0 tons of Regen 1 and Regen 2 per any

one-hour period, nor more than 13,500.0 tons per year, based on a 12-month rolling period. c. Hours












242

Section VI. Specific Operating Conditions (continued) BZ. Emission Units S2.325 and PF1.501 (continued)











throughput and the daily hours of operation. d. Record the throughput rate of Regen 1 for S2.325 and PF1.501, each, on a cumulative monthly basis, for each 12-

month rolling period. e. Conduct and record an observation of visible emissions (excluding water vapor) on the vent filter on S2.325 on a

monthly basis while operating. The observer shall stand at a distance sufficient to provide a clear view of the emissions with the sun oriented to their back. If visible emissions are observed, the Permittee shall conduct and record a Method 9 visible emission test. Each Method 9 visible emission test must be conducted by a certified visible emissions reader in accordance with 40 CFR Part 60, Appendix A.

f. Conduct and record an observation of visible emissions (excluding water vapor) on PF1.501 on a monthly basis while operating. The observer shall stand at a distance sufficient to provide a clear view of the emissions with the sun oriented to their back. If visible emissions are observed, the Permittee shall conduct and record a Method 9 visible emission test. Each Method 9 visible emission test shall be conducted by a certified visible emissions reader in accordance with 40 CFR Part 60, Appendix A.

g. Inspect the vent filter installed on S2.325 in accordance with the manufacturer’s operation and maintenance manual and record the results (e.g. the condition of the filter fabric), and any corrective actions taken. If no operation and maintenance manual is available, inspections shall be conducted monthly.


Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in BZ.4. of this section.




243

Section VI. Specific Operating Conditions (continued) CA. Emission Units S2.326 and PF1.502

System 118 – Regen 2 Feed System Location UTM (Zone 11, NAD 83) m North m East

S2.326 Regen 2 Silo/Guppy Loading 4,536,394 554,480 PF1.502 Regen 2 Silo/Guppy Discharge

1. NAC 445B.3405 (NAC 445B.316) Part 70 Program Air Pollution Control Equipment a. Emissions from S2.326 shall be controlled by a vent filter. b. PF1.502 shall be uncontrolled. c. Descriptive Stack Parameters for S2.326


2. NAC 445B.3405 (NAC 445B.316) Part 70 Program Operating Parameters a. The maximum allowable throughput rate for S2.326 shall not exceed 40.0 tons of Regen 2 per any one-hour period,

nor more than 12,600.0 tons per year, based on a 12-month rolling period. b. The maximum allowable throughput rate for PF1.502 shall not exceed 20.0 tons of Regen 2 per any one-hour period,

nor more than 12,600.0 tons per year, based on a 12-month rolling period. c. Hours












244

Section VI. Specific Operating Conditions (continued) CA. Emission Units S2.326 and PF1.502 (continued)











throughput and the daily hours of operation. d. Record the throughput rate of Regen 2 for S2.326 and PF1.502, each, on a cumulative monthly basis, for each 12-

month rolling period. e. Conduct and record an observation of visible emissions (excluding water vapor) on the vent filter on S2.326 on a

monthly basis while operating. The observer shall stand at a distance sufficient to provide a clear view of the emissions with the sun oriented to their back. If visible emissions are observed, the Permittee shall conduct and record a Method 9 visible emission test. Each Method 9 visible emission test must be conducted by a certified visible emissions reader in accordance with 40 CFR Part 60, Appendix A.

f. Conduct and record an observation of visible emissions (excluding water vapor) on PF1.502 on a monthly basis while operating. The observer shall stand at a distance sufficient to provide a clear view of the emissions with the sun oriented to their back. If visible emissions are observed, the Permittee shall conduct and record a Method 9 visible emission test. Each Method 9 visible emission test shall be conducted by a certified visible emissions reader in accordance with 40 CFR Part 60, Appendix A.

g. Inspect the vent filter installed on S2.326 in accordance with the manufacturer’s operation and maintenance manual and record the results (e.g. the condition of the filter fabric), and any corrective actions taken. If no operation and maintenance manual is available, inspections shall be conducted monthly.


Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in CA.4. of this section.




245

Section VI. Specific Operating Conditions (continued) CB. Emission Unit PF1.503

System 119 – Copper Sulfate Feed System Location UTM (Zone 11, NAD 83) m North m East

PF1.503 Bag Splitter and Transfer to Mixing Tank 4,536,307 554,548



Operating Parameters a. The maximum allowable throughput rate for PF1.503 shall not exceed 2.0 tons of copper sulfate per any one-hour

period, nor more than 600.0 tons per year, based on a 12-month rolling period. b. Hours


3. NAC 445B.3405 (NAC 445B.316) Part 70 Program Emission Limits The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from PF1.503 the following pollutants in excess of the following specified limits: a. NAC 445B.305 Part 70 Program – The discharge of PM (particulate matter) to the atmosphere shall not exceed







hours of operation. d. Record the throughput rate of copper sulfate for PF1.503 on a cumulative monthly basis, for each 12- month rolling


while operating. The observer shall stand at a distance sufficient to provide a clear view of the emissions with the sun oriented to their back. If visible emissions are observed, the Permittee shall conduct and record a Method 9 visible emission test. Each Method 9 visible emission test shall be conducted by a certified visible emissions reader in accordance with 40 CFR Part 60, Appendix A




246

Section VI. Specific Operating Conditions (continued) CB. Emission Unit PF1.503 (continued)





Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in CB.4. of this section.




247

Section VI. Specific Operating Conditions (continued) CC. Emission Units PF1.504 and PF1.505

System 120 – Flocculent Feed System Location UTM (Zone 11, NAD 83) m North m East

PF1.504 Bag Splitter and Transfer to Conveyor (Tail Thickener) 4,537,699 555,566 PF1.505 Bag Splitter and Transfer to Conveyor (Clarifier) 4,536,395 554,483


Air Pollution Control Equipment Emissions from PF1.504 and PF1.505, each, shall be controlled by an enclosure.


Operating Parameters a. The maximum allowable throughput rate for PF1.504 shall not exceed 1.0 ton of flocculent per any one-hour period,

nor more than 300.0 tons per year, based on a 12-month rolling period. b. The maximum allowable throughput rate for PF1.505 shall not exceed 1.0 ton of flocculent per any one-hour period,

nor more than 50.0 tons per year, based on a 12-month rolling period. c. Hours
















248

Section VI. Specific Operating Conditions (continued) CC. Emission Units PF1.504 and PF1.505 (continued)



throughput and the daily hours of operation. d. Record the throughput rate of flocculent for PF1.504 and PF1.505, each, on a cumulative monthly basis, for each

12- month rolling period. e. Conduct and record an observation of visible emissions (excluding water vapor) on PF1.504 and PF1.505, each, on

a monthly basis while operating. The observer shall stand at a distance sufficient to provide a clear view of the emissions with the sun oriented to their back. If visible emissions are observed, the Permittee shall conduct and record a Method 9 visible emission test. Each Method 9 visible emission test shall be conducted by a certified visible emissions reader in accordance with 40 CFR Part 60, Appendix A

f. Inspect the enclosure installed on PF1.504 and PF1.505, each, on a monthly basis to confirm that the enclosure is in place and functioning properly. If the enclosure is in disrepair, the Permittee shall initiate corrective action within 24 hours and complete corrective action as expediently as practical to ensure that the enclosure is functioning properly. The Permittee must record each inspection of the enclosures, including the date of each inspection and any corrective actions taken.


Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in CC.4. of this section.




249

Section VI. Specific Operating Conditions (continued) CD. Emission Unit PF1.506

System 121 – Thiosulfate Feed System Location UTM (Zone 11, NAD 83) m North m East

PF1.506 Bag Splitter and Transfer to Mixing Tank 4,536,304 554,654



Operating Parameters a. The maximum allowable throughput rate for PF1.506 shall not exceed 12.0 tons of thiosulfate per any one-hour



3. NAC 445B.3405 (NAC 445B.316) Part 70 Program Emission Limits The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from PF1.506 the following pollutants in excess of the following specified limits: a. NAC 445B.305 Part 70 Program – The discharge of PM (particulate matter) to the atmosphere shall not exceed







hours of operation. d. Record the throughput rate of thiosulfate for PF1.506 on a cumulative monthly basis, for each 12- month rolling






250

Section VI. Specific Operating Conditions (continued) CD. Emission Unit PF1.506 (continued)





Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in CD.4. of this section.




251

Section VI. Specific Operating Conditions (continued) CE. Emission Units PF1.507 and PF1.508

System 122 – Water Softener Feed System Location UTM (Zone 11, NAD 83) m North m East

PF1.507 Water Softener Transfer to Mixing Tank 1 4,536,395 554,483 PF1.508 Water Softener Transfer to Mixing Tank 2 4,536,304 554,461


Air Pollution Control Equipment Emissions from PF1.507 and PF1.508, each, shall be controlled by an enclosure.


Operating Parameters a. The maximum allowable throughput rate for PF1.507 shall not exceed 45.0 tons of water softener per any one-hour

period, nor more than 250.0 tons per year, based on a 12-month rolling period. b. The maximum allowable throughput rate for PF1.508 shall not exceed 12.0 tons of water softener per any one-hour

period, nor more than 40.0 tons per year, based on a 12-month rolling period. c. Hours













c. NAC 445B.22017 Federally Enforceable SIP Requirement – The opacity from PF1.507 and PF1.508, each, shall not equal or exceed 20%.




252

Section VI. Specific Operating Conditions (continued) CE. Emission Units PF1.507 and PF1.508 (continued)



throughput and the daily hours of operation. d. Record the throughput rate of water softener for PF1.507 and PF1.508, each, on a cumulative monthly basis, for

each 12- month rolling period. e. Conduct and record an observation of visible emissions (excluding water vapor) on PF1.507 and PF1.508, each, on

a monthly basis while operating. The observer shall stand at a distance sufficient to provide a clear view of the emissions with the sun oriented to their back. If visible emissions are observed, the Permittee shall conduct and record a Method 9 visible emission test. Each Method 9 visible emission test shall be conducted by a certified visible emissions reader in accordance with 40 CFR Part 60, Appendix A

f. Inspect the enclosures installed on PF1.507 and PF1.508 on a monthly basis to confirm that the enclosures are in place and functioning properly. If the enclosure is in disrepair, the Permittee shall initiate corrective action within 24 hours and complete corrective action as expediently as practical to ensure that the enclosure is functioning properly. The Permittee must record each inspection of the enclosures, including the date of each inspection and any corrective actions taken.


Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in CE.4. of this section.




253

Section VI. Specific Operating Conditions (continued) CF. Emission Units S2.332.1 through S2.332.8

System 127 – Thiosulfate Recycle System Location UTM (Zone 11, NAD 83) m North m East

S2.332.1 Thiosulfate Recycle Tank 1 (59,000 gallons)

4,536,407 554,487

S2.332.2 Thiosulfate Recycle Tank 2 (59,000 gallons) S2.332.3 Thiosulfate Recycle Tank 3 (59,000 gallons) S2.332.4 Thiosulfate Recycle Solution Tank (12,000 gallons) S2.332.5 Regen 1 Storage Tank (13,000 gallons) S2.332.6 Regen 2 Mixing Tank (7,000 gallons) S2.332.7 Regen 2 Storage Tank (13,000 gallons) S2.332.8 Regen 1 Mixing Tank (12,000 gallons)


Air Pollution Control Equipment a. Emissions from S2.332.1 through S2.332.8, each, shall be controlled by a spray tower scrubber. b. Descriptive Stack Parameters for System 127


2. NAC 445B.3405 (NAC 445B.316) Part 70 Program Operating Parameters a. The maximum allowable throughput rate for S2.332.1 through S2.332.3, combined, shall not exceed 327,600

gallons of thiosulfate recycle solution per any one-hour period, nor more than 956,592,000.0 gallons per year, based on a 12-month rolling period.






d. NAC 445B.305 Part 70 Program – The discharge of H2S (hydrogen sulfide) to the atmosphere shall not exceed 0.02 pound per hour, nor more than 0.083 ton per year, based on 12-month rolling period.

e. NAC 445B.22033 Federally Enforceable SIP Requirement – The maximum allowable discharge of PM10 (particulate matter less than or equal to 10 microns in diameter) to the atmosphere from S2.332.1 through S2.332.8, combined, shall not exceed 157.05 pounds per hour.

f. NAC 445B.22017 Federally Enforceable SIP Requirement – The opacity from S2.332.1 through S2.332.8, combined, shall not equal or exceed 20%.




254

Section VI. Specific Operating Conditions (continued) CF. Emission Units S2.332.1 through S2.332.8 (continued)

4. NAC 445B.3405 (NAC 445B.316) Part 70 Program Performance Testing The Permittee, upon issuance of this operating permit, shall conduct renewal performance testing at least 90 days prior to the expiration of this operating permit, but no earlier than 365 days from the date of expiration of this operating permit, and every 5 years thereafter, in accordance with the following: a. All testing must comply with the advance notification, protocol review, operational conditions, reporting, and other

requirements of Section I.S. Testing and Sampling (NAC 445B.252) and Section I.T. Testing and Sampling (SIP NAC 445B.252) of this operating permit. Material sampling must be conducted in accordance with protocols approved by the Director. All performance test results shall be based on the arithmetic average of three valid runs (NAC 445B.252(5)).







h. For each performance test run, the Permittee will measure the following: (1) The thiosulfate recycle solution throughput, in gallons. (2) The pH of the spray tower scrubber liquor. (3) The volume flow rate of the spray tower scrubbing liquor.


Monitoring The permittee, upon issuance of this operating permit, shall: a. Monitor and record the throughput for S2.332.1 through S2.332.3 on a daily basis. b. Monitor and record the hours of operation for S2.332.1 through S2.332.8 on a daily basis. c. Record the average hourly throughput rate (in gallons per hour) for S2.332.1 through S2.332.3 using the daily

throughput and the daily hours of operation. d. Record the throughput rate of thiosulfate recycle solution for S2.332.1 through S2.332.3 on a cumulative monthly

basis, for each 12- month rolling period. e. Conduct and record an observation of visible emissions (excluding water vapor) on the wet scrubber on a monthly





255

Section VI. Specific Operating Conditions (continued) CF. Emission Units S2.332.1 through S2.332.8 (continued)


Monitoring (continued) The permittee, upon issuance of this operating permit, shall: f. Inspect the wet scrubber installed on S2.332.1 through S2.332.8 in accordance with the manufacturer’s operation

and maintenance manual and record the results (e.g. the condition of the water spray nozzles), and any corrective actions taken. If no operation and maintenance manual is available, inspections shall be conducted monthly.

g. Monitor and record the pH of the spray tower scrubbing liquor on a daily basis. h. Monitor and record the flow rate of the spray tower scrubbing liquor on a daily basis.


Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in CF.5. of this section.




256

Section VI. Specific Operating Conditions (continued) CG. Emission Units S2.333.1 through S2.333.7

System 128 – Elution Circuit Process Tanks Location UTM (Zone 11, NAD 83) m North m East

S2.333.1 Train A Resin Regeneration Tank (18,900 gallons) (TU4.026, MOPTC 1041-2221)

4,536,293 554,699

S2.333.2 Train B Resin Regeneration Tank (18,900 gallons) (TU4.027, MOPTC 1041-2221) S2.333.3 Eluant Synthesis Feed Tank (28,000 gallons) S2.333.4 Eluant Synthesis Tank (19,000 gallons) S2.333.5 Regen 1 Day Tank (19,000 gallons) S2.333.6 Regen 2 Day Tank (13,000 gallons) S2.333.7 Eluant Synthesis Discharge Tank (41,000 gallons)


Air Pollution Control Equipment a. Emissions from S2.333.1 through S2.333.7 shall be controlled by a spray tower scrubber followed by a carbon filter. b. Descriptive Stack Parameters for System 128


2. NAC 445B.3405 (NAC 445B.316) Part 70 Program Operating Parameters a. The maximum allowable throughput rate for S2.333.1 and S2.333.2, each, shall not exceed 18,900 gallons of elution

circuit solution per batch. b. Hours


3. NAC 445B.3405 (NAC 445B.316) Part 70 Program Emission Limits The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from S2.333.1 through S2.333.7, combined, the following pollutants in excess of the following specified limits: a. NAC 445B.305 Part 70 Program – The discharge of H2S (Hydrogen Sulfide) to the atmosphere shall not exceed

more than 0.01 pound per hour, nor more than 0.045 ton per year, based on 12-month rolling period. b. NAC 445B.22017 Federally Enforceable SIP Requirement – The opacity from S2.333.1 through S2.333.7,

combined, shall not equal or exceed 20%.



b. Testing shall be conducted on the exhaust stack (post controls).




257

Section VI. Specific Operating Conditions (continued) CG. Emission Units S2.333.1 through S2.333.7 (continued)


Performance Testing (continued) c Method 15, or Method 320, in Appendix A of 40 CFR Part 60 shall be used to determine the H2S (hydrogen sulfide)

concentration. Each test will be run for a minimum of one hour. d. For each performance test run, the Permittee will measure the following: (1) The elution circuit solution throughput, in gallons. (2) The pH of the spray tower scrubber liquor. (3) The volume flow rate of the spray tower scrubbing liquor.


Monitoring The permittee, upon issuance of this operating permit, shall: a. Monitor and record the throughput for S2.333.1 and S2.333.2 on a daily basis. b. Monitor and record the hours of operation for S2.333.1 through S2.333.7 on a daily basis. c. Record the average hourly throughput rate (in gallons per hour) for S2.333.1 and S2.333.2 using the daily throughput

and the daily hours of operation. d. Record the throughput rate of elution circuit solution for S2.333.1 and S2.333.2 on a cumulative monthly basis, for

each 12- month rolling period. e. Inspect the wet scrubber installed on S2.333.1 through S2.333.7 in accordance with the manufacturer’s operation

and maintenance manual and record the results (e.g. the condition of the water spray nozzles), and any corrective actions taken. If no operation and maintenance manual is available, inspections shall be conducted monthly.

f. Monitor and record the pH of the spray tower scrubbing liquor on a daily basis. g. Monitor and record the flow rate of the spray tower scrubbing liquor on a daily basis.


Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in CG.5. of this section.




258

Section VI. Specific Operating Conditions (continued) CH. Emission Units S2.334 and S2.335

System 129 – Liquid Sulfur Loading and Storage Location UTM (Zone 11, NAD 83) m North m East

S2.334 Truck Unloading Sulfur Tank (horizontal 10,000 gallon tank, diameter = 11' length = 14.6') 4,536,221 554,933

S2.335 Sulfur Storage Tank (126,904 gallon tank, diameter = 30' length = 24') 4,536,216 554,925

1. NAC 445B.3405 (NAC 445B.316) Part 70 Program Air Pollution Control Equipment a. Emissions from S2.334 and S2.335 shall be uncontrolled. b. Descriptive Stack Parameters for S2.334

Stack Height: 24.9 feet Stack Diameter: 0.67 feet Stack Temperature: 160°F Exhaust Flow: 63 dry standard cubic feet per minute (dscfm)

c. Descriptive Stack Parameters for S2.335 Stack Height: 37.7 feet Stack Diameter: 0.83 feet Stack Temperature: 160°F Exhaust Flow: 91 dry standard cubic feet per minute (dscfm)

2. NAC 445B.3405 (NAC 445B.316) Part 70 Program Operating Parameters a. The maximum allowable throughput rate for S2.334 shall not exceed 5,000.0 gallons of liquid sulfur per any one-

hour period, nor more than 3,668,544.0 gallons per year, based on a 12-month rolling period. b. The maximum allowable throughput rate for S2.335 shall not exceed 756.0 gallons of liquid sulfur per any one-hour

period, nor more than 3,668,544.0 gallons per year, based on a 12-month rolling period. c. The Permittee will only process de-gassed liquid sulfur in S2.334 and S2.335, with a nominal H2S content of 10

parts-per-million by weight (ppmw). d. Hours


3. NAC 445B.3405 (NAC 445B.316) Part 70 Program Emission Limits The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from S2.334 and S2.335, each, the following pollutants in excess of the following specified limits: a. NAC 445B.305 Part 70 Program – The discharge of H2S (Hydrogen Sulfide) to the atmosphere from S2.334 shall

not exceed more 0.026 pound per hour, nor more than 0.11 ton per year, based on 12-month rolling period. b. NAC 445B.305 Part 70 Program – The discharge of H2S (Hydrogen Sulfide) to the atmosphere from S2.335 shall

not exceed more 0.038 pound per hour, nor more than 0.16 ton per year, based on 12-month rolling period. c. NAC 445B.22017 Federally Enforceable SIP Requirement – The opacity from S2.334 and S2.335, each, shall not

equal or exceed 20%.

4. NAC 445B.3405 (NAC 445B.316) Part 70 Program Monitoring The permittee, upon issuance of this operating permit, shall: a. Monitor and record the throughput of liquid sulfur, in gallons, loaded into, or dispensed from, S2.334 and S2.335,

each, on a monthly basis, as determined from vendor invoices for tank loading or fuel pump non-resettable meter for tank dispensing.




259

Section VI. Specific Operating Conditions (continued) CH. Emission Units S2.334 and S2.335 (continued)


Monitoring (continued) The permittee, upon issuance of this operating permit, shall: b. Monitor and record the total yearly throughput rate in gallons per year. The annual throughput shall be determined at

the end of each month as the sum of the monthly throughput rates for the year for all previous months of that year. c. Monitor and record the duration of the unloading for S2.334 and S2.335, each, during each day unloading occurs. d. Monitor and record the daily average hourly throughput of liquid sulfur for S2.334 and S2.335, each, using CH.4.a

and CH.4.c above. e. The Permittee will maintain documentation on-site showing that the liquid sulfur delivered to the site and processed

in S2.334 and S2.335 has been de-gassed. 5. NAC 445B.3405 (NAC 445B.316) Part 70 Program

Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in CH.4. of this section.




260

Section VI. Specific Operating Conditions (continued) CI. Emission Units S2.336 through S2.340

System 130 – Polysulfide Reactors Location UTM (Zone 11, NAD 83) m North m East

S2.336 Polysulfide Reactor 1 (9,800 gallon vertical fixed roof tank with a diameter of 11' and a height of 16') 4,536,194 554,941



S2.339 Polysulfide Day Tank 1 (25,000 gallon vertical fixed roof tank with a diameter of 15' and a height of 23') 4,536,194 554,926

S2.340 Polysulfide Day Tank 2 (25,000 gallon vertical fixed roof tank with a diameter of 15' and a height of 23') 4,536,185 554,926


Air Pollution Control Equipment a. Emissions from S2.336 through S2.340 shall be uncontrolled. b. Descriptive Stack Parameters for S2.336 through S2.338

Stack Height: 0.46 feet Stack Diameter: 0.25 feet Stack Temperature: 200°F

c. Descriptive Stack Parameters for S2.339 and S2.340 Stack Height: 1.25 feet Stack Diameter: 0.33 feet Stack Temperature: 180°F


Operating Parameters a. The maximum allowable throughput rate for S2.336 through S2.340, each, shall not exceed 4,500.0 gallons of

polysulfide solution per any one-hour period, nor more than 25,013,304.0 gallons per year, based on a 12-month rolling period.

b. Hours (1) S2.336 through S2.340, each, may operate a total of 24 hours per day.

3. NAC 445B.3405 (NAC 445B.316) Part 70 Program Emission Limits The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from S2.336 through S2.340, each, the following pollutants in excess of the following specified limits: a. NAC 445B.305 Part 70 Program – The discharge of H2S (Hydrogen Sulfide) to the atmosphere shall not exceed

more than 0.0002 pound per hour, nor more than 0.0007 ton per year, based on 12-month rolling period. b. NAC 445B.22017 Federally Enforceable SIP Requirement – The opacity from S2.336 through S2.340, each, shall

not equal or exceed 20%.




261

Section VI. Specific Operating Conditions (continued) CI. Emission Units S2.336 through S2.340 (continued)


Monitoring The permittee, upon issuance of this operating permit, shall: a. Monitor and Record the volume of polysulfide solution processed in S2.336 through S2.340, each, on a daily basis. b. Monitor and Record the hours of operation for S2.336 through S2.340, each, on a daily basis. c. Monitor and Record the daily average hourly throughput rate (in gallons per hour) of polysulfide solution for S2.336

through S2.340, each, using CI.4.a and CI.4.b above. d. Monitor and record the H2S concentration in the vicinity of S2.336 through S2.340 using a portable analyzer with

manufacturer guaranteed H2S detection limit no greater than 1.0 ppm. The Permittee will maintain on-site, and make available for inspection, the manufacturer’s documentation showing the detection limit of the portable analyzer. At a minimum, the H2S monitoring shall be performed on a monthly basis.


Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in CI.4. of this section.




262

Section VI. Specific Operating Conditions (continued) CJ. Emission Units S2.342.1 through S2.342.3

System 131 – RIL Electrowinning Cells and RIL Pregnant and Barren Tanks A and B Location UTM (Zone 11, NAD 83) m North m East

S2.342.1 RIL Electrowinning Cells (TU4.030, AP1041-2221) 4,536,169 554,512 S2.342.2 RIL Pregnant and Barren Solution Tank A (TU4.031, AP1041-2221)

S2.342.3 RIL Pregnant and Barren Solution Tank B (TU4.032, AP1041-2221)

1. NAC 445B.3405 (NAC 445B.316) Part 70 Program Air Pollution Control Equipment a. Emissions from S2.342.1 through S2.342.3 shall be controlled by a carbon filter (CA-006). b. Descriptive Stack Parameters for S2.342.1 through S2.342.3



Operating Parameters a. The maximum allowable throughput rate for S2.342.1 through S2.342.3, each, shall not exceed 120,000.0 gallons of

solution per any one-hour period. b. Hours


3. NAC 445B.3405 (NAC 445B.316) Part 70 Program Emission Limits The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from S2.342.1 through S2.342.3, combined, the following pollutants in excess of the following specified limits: a. NAC 445B.22017 Federally Enforceable SIP Requirement – The opacity from S2.342.1 through S2.342.3,

combined, shall not equal or exceed 20%.

4. NAC 445B.3405 (NAC 445B.316) Part 70 Program Monitoring The permittee, upon issuance of this operating permit, shall: a. Monitor and record the hours of operation for S2.342.1 through S2.342.3, each. b. Monitor and record a reading of the throughput rate of solution (in gallons per minute), for S2.342.1 through

S2.342.3, each, on a daily basis. c. Record the total daily throughput of solution, in gallons, for S2.342.1 through S2.342.3, each, for each day of

operation. d. Record the average hourly throughput of solution (in gallons per hour) for S2.342.1 through S2.342.3, each, for each

day of operation. 5. NAC 445B.3405 (NAC 445B.316) Part 70 Program

Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in CJ.4. of this section.




263

Section VI. Specific Operating Conditions (continued) CK. Emission Unit S2.350

System 133A – Paste Backfill Plant Location UTM (Zone 11, NAD 83) m North m East

S2.350 Cement Silo Loading (discharge via full enclosure) 4,538,157 552,230

1. NAC 445B.3405 (NAC 445B.316) Part 70 Program Air Pollution Control Equipment a. Emissions from S2.350 shall be controlled by a vent filter. b. Descriptive Stack Parameters for S2.350


2. NAC 445B.3405 (NAC 445B.316) Part 70 Program Operating Parameters a. The maximum allowable throughput rate for S2.350 shall not exceed 25.0 tons of cement per any one-hour period,












264

Section VI. Specific Operating Conditions (continued) CK. Emission Unit S2.350 (continued)


hours of operation. d. Record the throughput rate of cement for S2.350 on a cumulative monthly basis, for each 12- month rolling period. e. Conduct and record an observation of visible emissions (excluding water vapor) on the vent filter on a monthly basis




Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in CK.4. of this section.




265

Section VI. Specific Operating Conditions (continued) CL. Emission Unit S2.351

System 133B – Paste Backfill Plant Location UTM (Zone 11, NAD 83) m North m East

S2.351 Fly Ash Silo Loading (discharge via full enclosure) 4,538,151 552,230

1. NAC 445B.3405 (NAC 445B.316) Part 70 Program Air Pollution Control Equipment a. Emissions from S2.351 shall be controlled by a vent filter. b. Descriptive Stack Parameters for S2.351


2. NAC 445B.3405 (NAC 445B.316) Part 70 Program Operating Parameters a. The maximum allowable throughput rate for S2.351 shall not exceed 25.0 tons of fly ash or cement per any one-












266

Section VI. Specific Operating Conditions (continued) CL. Emission Unit S2.351 (continued)


hours of operation. d. Record the throughput rate of fly ash or cement for S2.351 on a cumulative monthly basis, for each 12- month





Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in CL.4. of this section.




267

Section VI. Specific Operating Conditions (continued) CM. Emission Units S2.352.1 through S2.352.3

System 134 – Paste Backfill Plant Material Transfers Location UTM (Zone 11, NAD 83) m North m East

S2.352.1 Cement Silo Conveyor Discharge 4,538,178 552,258 S2.352.2 Fly Ash Silo Conveyor Discharge

S2.352.3 Screw Conveyor Discharge

1. NAC 445B.3405 (NAC 445B.316) Part 70 Program Air Pollution Control Equipment a. Emissions from S2.352.1 through S2.352.3 shall be controlled by a wet scrubber. b. Descriptive Stack Parameters for System 134


2. NAC 445B.3405 (NAC 445B.316) Part 70 Program Operating Parameters a. The maximum allowable throughput rate for S2.352.1 and S2.352.2, each, shall not exceed 12.0 tons of cement and

fly ash per any one-hour period, nor more than 105,120.0 tons per year, based on a 12-month rolling period. b. The maximum allowable throughput rate for S2.352.3 shall not exceed 24.0 tons of cement and fly ash per any one-

hour period, nor more than 210,240.0 tons per year, based on a 12-month rolling period. c. Hours







e. NAC 445B.22017 Federally Enforceable SIP Requirement – The opacity from S2.352.1 through S2.352.3 combined, shall not equal or exceed 20%.




268

Section VI. Specific Operating Conditions (continued) CM. Emission Units S2.352.1 through S2.352.3 (continued)










throughput and the daily hours of operation. d. Record the throughput rate cement and fly ash for S2.352.1 through S2.352.3, each, on a cumulative monthly basis,

for each 12- month rolling period. e. Conduct and record an observation of visible emissions (excluding water vapor) on the wet scrubber on a monthly


f. Inspect the wet scrubber installed on S2.352.1 through S2.352.3 in accordance with the manufacturer’s operation and maintenance manual and record the results (e.g. the condition of the water spray nozzles), and any corrective actions taken. If no operation and maintenance manual is available, inspections shall be conducted monthly.

g. Install, calibrate, operate, and maintain devices for the measurement of the pressure drop and water flow rate through the wet scrubber.

h. Monitor and record the pressure drop and water flow rate through the wet scrubber, each day that S2.352.1 through S2.352.3 are in operation.




269

Section VI. Specific Operating Conditions (continued) CM. Emission Units S2.352.1 through S2.352.3 (continued)


Monitoring (continued) The permittee, upon issuance of this operating permit, shall: i. Maintain records on site of the specified ranges of pressure drop and water flow rate for the wet scrubber. The

Permittee will make available such records to the Director upon request. The specified operating ranges will be determined by the Permittee, based on operating experience and manufacturer’s recommendations.


Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in CM.5. of this section.




270

Section VI. Specific Operating Conditions (continued) CN. Emission Unit S2.353

System 135 – Paste Backfill Plant Emergency Diesel Generator Location UTM (Zone 11, NAD 83) m North m East

S2.353 Emergency Diesel Generator (2,206 hp, CAT, Model #3512C, manufactured 2012) 4,538,163 552,289

1. NAC 445B.3405 (NAC 445B.316) Part 70 Program Air Pollution Control Equipment a. S2.353 has no add-on controls. b. Descriptive Stack Parameters for S2.353


2. NAC 445B.3405 (NAC 445B.316) Part 70 Program Operating Parameters a. S2.353 may consume only diesel. b. The maximum allowable fuel consumption rate for S2.353 shall not exceed 104.6 gallons per any one-hour period. c. Hours

(1) S2.353 may operate a total of 24 hours per day. (2) S2.353 may operate a maximum of 100 hours per year of non-emergency use. There is no time limit on

operation in emergency situations.





d. NAC 445B.305 Part 70 Program – The discharge of SO2 (sulfur dioxide) to the atmosphere shall not exceed 0.027 pound per hour, nor more than 0.001 ton per year, based on 12-month rolling period..



g. NAC 445B.305 Part 70 Program – The discharge of VOCs (volatile organic compounds) to the atmosphere shall not exceed 1.32 pounds per hour, nor more than 0.066 ton per year, based on 12-month rolling period..







271

Section VI. Specific Operating Conditions (continued) CN. Emission Unit S2.353 (continued)


Monitoring The permittee, upon issuance of this operating permit, shall: a. Monitor and record the total daily hours of operation for S2.353 for each day of operation. The Permittee shall note

which hours of operation are emergency hours, and which hours of operation are hours for non-emergency use. b. Monitor and record the consumption rate of diesel on a daily basis for S2.353 (in gallons) by multiplying the

maximum hourly fuel consumption rate as stated in CN.2.b. of this section and the total daily hours of operation. c. Monitor and record the total yearly hours of operation of S2.353 per year. The annual hours of operation shall be

determined at the end of each month as the sum of the monthly hours of operation for all previous months of that year.

5. Federal Requirements NAC 445B.3405 (NAC 445B.316) Part 70 Program New Source Performance Standards (NSPS) – 40 CFR Part 60 Subpart IIII – Standards of Performance for Stationary Compression Ignition Internal Combustion Engines a. Emissions Standards (40 CFR 60.4205) The Permittee must comply with the emission standards for new non-road CI (compression ignition) ICE (internal

combustion engine) in 40 CR 60.4202, for all pollutants, for the same model year and maximum engine power for their 2007 model year and later emergency stationary CI ICE. (40 CFR 60.4205(b)) (1) For a 2007 model year and later Tier 2 non-road engine with a rated power greater than 560 kW (750 hp): (40

CFR 60.4202(a), 40 CFR 89.112 Table 1) (a) The discharge of PM to the atmosphere shall not exceed 0.2 gram/kW-hr (0.73 pound per hour). (b) The discharge of CO to the atmosphere shall not exceed 3.5 grams/kW-hr (12.69 pounds per hour). (c) The discharge of NMHC (non-methane hydrocarbon) + NOX to the atmosphere shall not exceed 6.4

grams/kW-hr (23.21 pounds per hour). (2) Exhaust opacity must not exceed: (40 CFR 60.4202(a)(1)(i), 40 CFR 89.113(a))

(a) 20 percent during acceleration mode; (b) 15 percent during the lugging mode; and (c) 50 percent during the peaks in either the acceleration or lugging modes.

b. Fuel Requirements (40 CFR 60.4207) The Permittee must meet the following diesel requirements for non-road engine: (40 CFR 60.4207(b), 40 CFR 80.510(b)) (1) Sulfur content to be 15 parts per million (ppm) maximum. (2) A minimum cetane index of 40; or (3) A maximum aromatic content of 35 volume percent.

c. Monitoring Requirements (40 CFR 60.4209) If the CI ICE does not meet the standards applicable to non-emergency engines, the Permittee must install a non-resettable hour meter prior to startup of the engine. (40 CFR 60.4209(a))

d. Compliance Requirements (40 CFR 60.4206, 40 CFR 60.4211) (1) The Permittee must operate and maintain stationary CI ICE that achieve the emission standards as required in

40 CFR 60.4205 over the entire life of the engine. (40 CFR 60.4206) (2) The Permittee must operate and maintain the stationary CI internal combustion engine and control device

according to the manufacturer's emission-related written instructions; change only those emission-related settings that are permitted by the manufacturer; and meet the requirements of 40 CFR Part 89. (40 CFR 60.4211(a))

(3) The engine must be installed and configured according to the manufacturer's emission-related specifications, except as permitted in CN.5.d.(5) of this section. (40 CFR 60.4211(c))




272



New Source Performance Standards (NSPS) – 40 CFR Part 60 Subpart IIII – Standards of Performance for Stationary Compression Ignition Internal Combustion Engines (continued)

(4) In order for the engine to be considered an emergency stationary ICE under this subpart, any operation other than emergency operation, maintenance and testing, emergency demand response, and operation in non-emergency situations for 50 hours per year, as described in paragraphs CN.5.d.(4)(a) through (c) of this section, is prohibited. If the Permittee do not operate the engine according to the requirements in paragraphs CN.5.d.(4)(a) through (c) of this section, the engine will not be considered an emergency engine under this subpart and must meet all requirements for non-emergency engines. (40 CFR 60.4211(f)) (a) There is no time limit on the use of emergency stationary ICE in emergency situations. (40 CFR

60.4211(f)(1)) (b) The Permittee may operate the Permittee’s emergency stationary ICE for any combination of the

purposes specified in paragraphs CN.5.d.(4)(b) of this section for a maximum of 100 hours per calendar year. Any operation for non-emergency situations as allowed by paragraph CN.5.d.(4)(c) of this section counts as part of the 100 hours per calendar year. (40 CFR 60.4211(f)(2)) i. Emergency stationary ICE may be operated for maintenance checks and readiness testing,

provided that the tests are recommended by federal, state or local government, the manufacturer, the vendor, the regional transmission organization or equivalent balancing authority and transmission operator, or the insurance company associated with the engine. The owner or operator may petition the Administrator for approval of additional hours to be used for maintenance checks and readiness testing, but a petition is not required if the owner or operator maintains records indicating that federal, state, or local standards require maintenance and testing of emergency ICE beyond 100 hours per calendar year. (40 CFR 60.4211(f)(2)(i))

(c) Emergency stationary ICE may be operated for up to 50 hours per calendar year in non-emergency situations. The 50 hours of operation in non-emergency situations are counted as part of the 100 hours per calendar year for maintenance and testing and emergency demand response provided in paragraph CN.5.d.(4)(b) of this section. Except as provided in paragraph CN.5.d.(4)(c) of this section, the 50 hours per calendar year for non-emergency situations cannot be used for peak shaving or non-emergency demand response, or to generate income for a facility to an electric grid or otherwise supply power as part of a financial arrangement with another entity. (40 CFR 60.4211(f)(3)) i. The 50 hours per year for non-emergency situations can be used to supply power as part of a

financial arrangement with another entity if all of the conditions in 40 CFR 60.4211(f)(3)(i)(A) through (E) are met. (40 CFR 60.4211(f)(3)(i))

(5) If the Permittee does not install, configure, operate, and maintain the Permittee’s engine and control device according to the manufacturer's emission-related written instructions, or the Permittee change emission-related settings in a way that is not permitted by the manufacturer, the Permittee must demonstrate compliance as follows: (40 CFR 4211(g)) (a) For CI ICE greater than 500 hp, the Permittee must keep a maintenance plan and records of conducted

maintenance and must, to the extent practicable, maintain and operate the engine in a manner consistent with good air pollution control practice for minimizing emissions. In addition, the Permittee must conduct an initial performance test to demonstrate compliance with the applicable emission standards within 1 year of startup, or within 1 year after an engine and control device is no longer installed, configured, operated, and maintained in accordance with the manufacturer's emission-related written instructions, or within 1 year after the Permittee change emission-related settings in a way that is not permitted by the manufacturer. The Permittee must conduct subsequent performance testing every 8,760 hours of engine operation or 3 years, whichever comes first, thereafter to demonstrate compliance with the applicable emission standards. (40 CFR 60.4211(g)(3))




273



New Source Performance Standards (NSPS) – 40 CFR Part 60 Subpart IIII – Standards of Performance for Stationary Compression Ignition Internal Combustion Engines (continued) e. National Emission Standards for Hazardous Air Pollutants for Source Categories – 40 CFR Part 63, Subpart ZZZZ –

Standards for Hazardous Air Pollutants for Stationary Reciprocating Internal Combustion Engines: If the compression ignition engine meets the requirements of 40 CFR Part 60 Subpart IIII, 40 CFR Part 63 Subpart ZZZZ requirements are also met. (40 CFR Part 63.6590(c))


Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in CN.4. of this section. b. Maintain records of the occurrence and duration of any startup, shutdown, or malfunction in the operation of an





274

Section VI. Specific Operating Conditions (continued) CO. Emission Unit S2.354

System 136 – Rodeo Shotcrete Silo #2 Location UTM (Zone 11, NAD 83) m North m East

S2.354 Silo #2 Loading (pneumatic or bucket elevator) (description includes discharge to conveyor, previously permitted as PF1.510, and conveyor discharge, previously permitted as PF1.511, both of which are fully enclosed. Also included are Delivery Truck Discharge and Screw Conveyor Discharge both fully enclosed and formerly units PF1.512 and PF1.513 of System 137 )

4,538,163 552,164




2. NAC 445B.3405 (NAC 445B.316) Part 70 Program Operating Parameters a. The maximum allowable throughput rate for S2.354 shall not exceed 80.0 tons of shotcrete per any one-hour period,












275

Section VI. Specific Operating Conditions (continued) CO. Emission Unit S2.354 (continued)


hours of operation. d. Record the throughput rate of shotcrete for S2.354 on a cumulative monthly basis, for each 12- month rolling period. e. Conduct and record an observation of visible emissions (excluding water vapor) on the vent filter on a monthly basis




Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in CO.4. of this section.




276

Section VI. Specific Operating Conditions (continued) CP.

System 138 – Fuel Storage Tanks - REMOVED




277

Section VI. Specific Operating Conditions (continued) CQ. Emission Unit S2.357

System 139 – Laboratory Pilot Roaster Plant Location UTM (Zone 11, NAD 83) m North m East

S2.357 Pilot Roaster 4,536,013 554,328 1. NAC 445B.3405 (NAC 445B.316) Part 70 Program

Air Pollution Control Equipment a. Emissions from S2.357 are controlled by a baghouse, venturi scrubber, and a SO2 scrubber. b. Descriptive Stack Parameters for S2.357

Stack Height: 15 feet Stack Diameter: 0.25 feet Stack Temperature: 82°F Exhaust Flow: 330 dry standard cubic feet per minute (dscfm)


Operating Parameters a. The maximum allowable throughput rate for S2.357 shall not exceed 0.126 tons of ore per batch, nor more than 92.0

tons per year, based on a 12-month rolling period. b. The maximum allowable throughput rate for S2.357 shall not exceed 5 pounds of sulfur prill per batch. c. The maximum allowable throughput rate for S2.357 shall not exceed 2 gallons of diesel per batch. d. Hours







e. NAC 445B.305 Part 70 Program – The discharge of NOX (oxides of nitrogen) to the atmosphere shall not exceed 0.12 pound per hour, nor more than 0.53 ton per year, based on 12-month rolling period.

f. NAC 445B.305 Part 70 Program – The discharge of CO (carbon monoxide) to the atmosphere shall not exceed 0.15 pound per hour, nor more than 0.66 ton per year, based on 12-month rolling period.


h. NAC 445B.2203 Federally Enforceable SIP Requirement – The maximum allowable discharge of PM10 (particulate matter less than or equal to 10 microns in diameter) to the atmosphere from S2.357 shall not exceed 1.04 pounds per MMBtu.





278

Section VI. Specific Operating Conditions (continued) CQ. Emission Unit S2.357 (continued)

4. NAC 445B.3405 (NAC 445B.316) Part 70 Program Performance The Permittee, upon issuance of this operating permit, shall conduct renewal performance testing at least 90 days prior to the expiration of this operating permit, but no earlier than 365 days from the date of expiration of this operating permit, and every 5 years thereafter, in accordance with the following: a. All testing must comply with the advance notification, protocol review, operational conditions, reporting, and other







g. Method 7E in Appendix A of 40 CFR Part 60 shall be used to determine the nitrogen oxides concentration. Each test will be run for a minimum of one hour.



j. Method 25A in Appendix A of 40 CFR Part 60 shall be used to determine the volatile organic compound concentration. Method 18 in Appendix A of 40 CFR Part 60 or Method 320 in Appendix A of CFR Part 63 may be used in conjunction with Method 25A to break out the organic compounds that are not considered VOC’s by definition per 40 CFR 51.100(s). Each Method 25A test will be run for a minimum of one hour.


Monitoring The permittee, upon issuance of this operating permit, shall: a. Monitor and record the throughput for S2.357 per batch. b. Monitor and record the hours of operation for S2.357 per batch. c. Record the throughput rate of ore, in tons, for S2.357 on a cumulative monthly basis, for each 12- month rolling

period. d. Record the throughput rate of sulfur prill, in pounds, for S2.357 on a cumulative monthly basis, for each 12- month

rolling period. e. Record the throughput rate of diesel, in gallons, for S2.357 on a cumulative monthly basis, for each 12- month

rolling period.




279

Section VI. Specific Operating Conditions (continued) CQ. Emission Unit S2.357 (continued)


Monitoring The permittee, upon issuance of this operating permit, shall: f. Conduct and record an observation of visible emissions (excluding water vapor) on S2.357 on a monthly basis while

operating. The observer shall stand at a distance sufficient to provide a clear view of the emissions with the sun oriented to their back. If visible emissions are observed, the Permittee shall conduct and record a Method 9 visible emission test. Each Method 9 visible emission test must be conducted by a certified visible emissions reader in accordance with 40 CFR Part 60, Appendix A.

g. Inspect the baghouse installed on S2.357 in accordance with the manufacturer’s operation and maintenance manual and record the results (e.g. the condition of the filter fabric), and any corrective actions taken. If no operation and maintenance manual is available, inspections shall be conducted monthly.

h. Inspect the wet scrubber installed on S2.357 in accordance with the manufacturer’s operation and maintenance manual and record the results (e.g. the condition of the water spray nozzles), and any corrective actions taken. If no operation and maintenance manual is available, inspections shall be conducted monthly.

i. Install, calibrate, operate, and maintain devices for the measurement of the following operating parameters for the control devices listed under CQ.1.a of this section:

(1) Pressure drop across the baghouse. (2) Pressure drop across the venturi scrubber. (3) Water flow rate through the venturi scrubber. (4) SO2 scrubber liquor pH. j. Monitor and record the pressure drop across the baghouse once during each day of operation. k. Monitor and record the pressure drop across the venturi scrubber and water flow rate through the venturi scrubber

once during each day of operation. l. Monitor and record the scrubber liquor pH once during each day of operation. m. Maintain records of the specified operating ranges for the baghouse, venturi scrubber, and SO2 scrubber on site and

available for inspection upon request. The specified operating ranges will be determined by Permittee based on operating experience and the manufacturer’s recommendations.

n. Record any occurrences, and the corrective actions taken, when the operating parameters listed in CQ.5.i (1) through (4) above falls outside their corresponding specified operating ranges.


Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in CQ.5. of this section.




280

Section VI. Specific Operating Conditions (continued) CR. Emission Units S2.359 and S2.360

System 140 – Bazza Backfill Plant Location UTM (Zone 11, NAD 83) m North m East

S2.359 Primary (120 tons) and Auxiliary (190 tons) Cement Silo Loading 4,536,586 551,387 S2.360 Central Mixer Loading (Silo Discharge) 4,536,584 551,397


Air Pollution Control Equipment a. Emissions from S2.359 and S2.360, each, shall be controlled by a vent filter. b. Descriptive Stack Parameters for S2.359


c. Descriptive Stack Parameters for S2.360 Stack Height: 12.0 feet Stack Diameter: 1.0 foot Stack Temperature: ambient Exhaust Flow: no active ventilation


any one-hour period, nor more than 47,500.0 tons per year, based on a 12-month rolling period. b. The maximum allowable throughput rate for S2.360 shall not exceed 30.0 tons of cement, fly ash, or shotcrete per













281

Section VI. Specific Operating Conditions (continued) CR. Emission Units S2.359 and S2.360 (continued)











and the daily hours of operation. d. Record the throughput rate of cement, fly ash, or shotcrete for S2.359 and S2.360, each, on a cumulative monthly

basis, for each 12- month rolling period. e. Conduct and record an observation of visible emissions (excluding water vapor) on the vent filters on a monthly


f. Inspect the vent filter installed on S2.359 and S2.360, each, in accordance with the manufacturer’s operation and maintenance manual and record the results (e.g. the condition of the filter fabric), and any corrective actions taken. If no operation and maintenance manual is available, inspections shall be conducted monthly.


Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in CR.4. of this section.




282

Section VI. Specific Operating Conditions (continued) CS. Emission Unit S2.361

System 141 – TKI Boiler Location UTM (Zone 11, NAD 83) m North m East

S2.361 12 MMBtu TKI Boiler 4,536,106 554,928 1. NAC 445B.3405 (NAC 445B.316) Part 70 Program

Air Pollution Control Equipment a. S2.361 is equipped with a low NOx burner. b. Descriptive Stack Parameters for S2.361





any one-hour period, nor more than 103,017,600.0 cubic feet per year, based on a 12-month rolling period. d. Hours














283

Section VI. Specific Operating Conditions (continued) CS. Emission Unit S2.361 (continued)





Performance Testing The Permittee, upon issuance of this operating permit, shall conduct renewal performance testing at least 90 days prior to the expiration of this operating permit, but no earlier than 365 days from the date of expiration of this operating permit, and every 5 years thereafter, in accordance with the following: a. All Choose an item. must comply with the advance notification, protocol review, operational conditions, reporting,

and other requirements of Section I.S. Testing and Sampling (NAC 445B.252) and Section I.T. Testing and Sampling (SIP NAC 445B.252) of this operating permit. Material sampling must be conducted in accordance with protocols approved by the Director. All performance test results shall be based on the arithmetic average of three valid runs (NAC 445B.252(5)).





f. Method 7E in Appendix A of 40 CFR Part 60 shall be used to determine the nitrogen oxides concentration. Each test will be run for a minimum of one hour.


h. Method 10 in Appendix A of 40 CFR Part 60 shall be used to determine the carbon monoxide concentration. Each test will be run for a minimum of one hour.


j. The performance testing required to determine the concentration of nitrogen oxides and carbon monoxide under CS.4.f. and h. of this section shall be conducted within 60 days of switching the fuel combusted in S2.361 as allowed under CS.2.a.




284

Section VI. Specific Operating Conditions (continued) CS. Emission Unit S2.361 (continued)


Monitoring The permittee, upon issuance of this operating permit, shall: a. Monitor and record the hours of operation while consuming propane for S2.361 on a daily basis. b. Monitor and record the hours of operation while consuming natural gas for S2.361 on a daily basis. c. Monitor and record the consumption rate of propane on a daily basis for S2.361 (in gallons) by multiplying the

maximum hourly fuel consumption rate as stated in CS.2.b. of this section and the total daily hours of operation, as determined under CS.5.a. of this section.

d. Monitor and record the consumption rate of natural gas on a daily basis for S2.361 (in cubic feet) by multiplying the maximum hourly fuel consumption rate as stated in CS.2.c. of this section and the total daily hours of operation, as determined under CS.5.b. of this section.

e. Record the consumption rate of propane (in gallons) for S2.361 on a cumulative monthly basis, for each 12-month rolling period.

f. Record the consumption rate of natural gas (in cubic feet) for S2.361 on a cumulative monthly basis, for each 12-month rolling period.

g. Maintain on-site and make available upon request, certification by the fuel supplier that the natural gas delivered to the Permittee for use in S2.361 is pipeline quality natural gas.


Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in CS.5. of this section. b. Maintain records of the occurrence and duration of any startup, shutdown, or malfunction in the operation of an


c. The calendar date and time when the fuel combusted in S2.361 is switched.

7. Federal Requirements (NAC 445B.3405(1)) (Federally Enforceable SIP Requirement) New Source Performance Standards (NSPS) – 40 CFR Part 60 Subpart Dc – Standards of Performance for Small Industrial-

Commercial-Institutional Steam Generating Units (40 CFR Part 60.40) a. Except as provided under paragraphs (g)(2) and (g)(3) of this 40 CFR Part 60.48c(g), the owner or operator of each

affected facility shall record and maintain records of the amount of each fuel combusted during each operating day. (40 CFR Part 60.48c(g))

b. All records required under 60 CFR Part 60.48c shall be maintained by the owner or operator of the affected facility for a period of two years following the date of such record. (40 CFR Part 60.48c(i))

c. The reporting period for the reports required under Subpart Dc is each six-month period. All reports shall be submitted to the Administrator and shall be postmarked by the 30th day following the end of the reporting period. (40 CFR Part 60.48c(j))




285

Section VI. Specific Operating Conditions (continued) CT. Emission Unit S2.362

System 142 – TS Regen Heater Location UTM (Zone 11, NAD 83) m North m East

S2.362 8.5 MMBtu Fired TS Regen Heater 4,536,401 554,477 1. NAC 445B.3405 (NAC 445B.316) Part 70 Program

Air Pollution Control Equipment a. S2.362 has no add-on controls. b. Descriptive Stack Parameters for S2.362




hour period, nor more than 814,680.0 gallons per year, based on a 12-month rolling period. c. The maximum allowable fuel consumption rate for S2.362 shall not exceed 8,333.0 cubic feet of natural gas per any

one-hour period, nor more than 72,997,080.0 cubic feet per year, based on a 12-month rolling period. d. Hours














286

Section VI. Specific Operating Conditions (continued) CT. Emission Unit S2.362 (continued)








5. NAC 445B.3405 (NAC 445B.316) Part 70 Program Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in CT.4. of this section.




287

Section VI. Specific Operating Conditions (continued) CU. Emission Unit S2.363

System 143 – Resin Regen Heater 1 Location UTM (Zone 11, NAD 83) m North m East

S2.363 6.0 MMBtu Fired Resin Regen Heater 1 4,536,295 554,681 1. NAC 445B.3405 (NAC 445B.316) Part 70 Program





hour period, nor more than 578,160.0 gallons per year, based on a 12-month rolling period. c. The maximum allowable fuel consumption rate for S2.363 shall not exceed 5,882.0 cubic feet of natural gas per any

one-hour period, nor more than 51,526,320.0 cubic feet per year, based on a 12-month rolling period. d. Hours














288

Section VI. Specific Operating Conditions (continued) CU. Emission Unit S2.363 (continued)








5. NAC 445B.3405 (NAC 445B.316) Part 70 Program Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in CU.4. of this section.




289

Section VI. Specific Operating Conditions (continued) CV. Emission Unit S2.364

System 144 – RIL Emergency Generator (Located in the TCM Area) Location UTM (Zone 11, NAD 83) m North m East

S2.364 2,710 kW (3,634 hp) RIL Emergency Generator 4,536,292 554,548

1. NAC 445B.3405 (NAC 445B.316) Part 70 Program Air Pollution Control Equipment a. S2.364 has no add-on controls. b. Descriptive Stack Parameters for S2.364

Stack Height: 15.0 feet Stack Diameter: 1.0 foot Stack Temperature: 915°F Exhaust Flow: 7,555 dry standard cubic feet per minute (dscfm)

2. NAC 445B.3405 (NAC 445B.316) Part 70 Program Operating Parameters a. S2.364 may consume only diesel. b. The maximum allowable fuel consumption rate for S2.364 shall not exceed 173.5 gallons per any one-hour period. c. Hours

(1) S2.364 may operate a total of 24 hours per day. (2) S2.364 may operate a maximum of 100 hours per year of non-emergency use. There is no time limit on

operation in emergency situations.


pounds per hour, nor more than 0.06 ton per year. b. NAC 445B.305 Part 70 Program – The discharge of PM10 (particulate matter less than or equal to 10 microns in

diameter) to the atmosphere shall not exceed 1.19 pounds per hour, nor more than 0.06 ton per year. c. NAC 445B.305 Part 70 Program – The discharge of PM2.5 (particulate matter less than or equal to 2.5 microns in

diameter) to the atmosphere shall not exceed 1.19 pounds per hour, nor more than 0.06 ton(s) per year. d. NAC 445B.305 Part 70 Program – The discharge of SO2 (sulfur dioxide) to the atmosphere shall not exceed 0.04

pound per hour, nor more than 0.002 ton per year. e. NAC 445B.305 Part 70 Program – The discharge of NOX (oxides of nitrogen) to the atmosphere shall not exceed

38.24 pounds per hour, nor more than 1.91 tons per year. f. NAC 445B.305 Part 70 Program – The discharge of CO (carbon monoxide) to the atmosphere shall not exceed

20.91 pounds per hour, nor more than 1.05 tons per year. g. NAC 445B.305 Part 70 Program – The discharge of VOCs (volatile organic compounds) to the atmosphere shall not

exceed 7.77 pounds per hour, nor more than 0.39 ton per year. h. NAC 445B.2203 Federally Enforceable SIP Requirement – The maximum allowable discharge of PM10 (particulate







290

Section VI. Specific Operating Conditions (continued) CV. Emission Unit S2.364 (continued)




maximum hourly fuel consumption rate as stated in CV.2.b. of this section and the total daily hours of operation. c. Monitor and record the total yearly hours of operation of S2.364 per year. The annual hours of operation shall be


5. Federal Requirements NAC 445B.3405 (NAC 445B.316) Part 70 Program New Source Performance Standards (NSPS) – 40 CFR Part 60 Subpart IIII – Standards of Performance for Stationary Compression Ignition Internal Combustion Engines a. Emissions Standards (40 CFR 60.4205) The Permittee must comply with the emission standards for new non-road CI (compression ignition) ICE (internal


CFR 60.4202(a), 40 CFR 89.112 Table 1) (a) The discharge of PM to the atmosphere shall not exceed 0.2 gram/kW-hr (1.19 pounds per hour). (b) The discharge of CO to the atmosphere shall not exceed 3.5 grams/kW-hr (20.91 pounds per hour). (c) The discharge of NMHC (non-methane hydrocarbon) + NOX to the atmosphere shall not exceed 6.4








(3) The engine must be installed and configured according to the manufacturer's emission-related specifications, except as permitted in CV.5.d.(5) of this section. (40 CFR 60.4211(c))




291




(4) In order for the engine to be considered an emergency stationary ICE under this subpart, any operation other than emergency operation, maintenance and testing, emergency demand response, and operation in non-emergency situations for 50 hours per year, as described in paragraphs CV.5.d.(4)(a) through (c) of this section, is prohibited. If the Permittee do not operate the engine according to the requirements in paragraphs CV.5.d.(4)(a) through (c) of this section, the engine will not be considered an emergency engine under this subpart and must meet all requirements for non-emergency engines. (40 CFR 60.4211(f)) (a) There is no time limit on the use of emergency stationary ICE in emergency situations. (40 CFR


purposes specified in paragraphs CV.5.d.(4)(b) of this section for a maximum of 100 hours per calendar year. Any operation for non-emergency situations as allowed by paragraph CV.5.d.(4)(c) of this section counts as part of the 100 hours per calendar year. (40 CFR 60.4211(f)(2)) i. Emergency stationary ICE may be operated for maintenance checks and readiness testing,


(c) Emergency stationary ICE may be operated for up to 50 hours per calendar year in non-emergency situations. The 50 hours of operation in non-emergency situations are counted as part of the 100 hours per calendar year for maintenance and testing and emergency demand response provided in paragraph CV.5.d.(4)(b) of this section. Except as provided in paragraph CV.5.d.(4)(c) of this section, the 50 hours per calendar year for non-emergency situations cannot be used for peak shaving or non-emergency demand response, or to generate income for a facility to an electric grid or otherwise supply power as part of a financial arrangement with another entity. (40 CFR 60.4211(f)(3)) i. The 50 hours per year for non-emergency situations can be used to supply power as part of a







292



New Source Performance Standards (NSPS) – 40 CFR Part 60 Subpart IIII – Standards of Performance for Stationary Compression Ignition Internal Combustion Engines (continued) e. National Emission Standards for Hazardous Air Pollutants for Source Categories – 40 CFR Part 63, Subpart ZZZZ –

Standards for Hazardous Air Pollutants for Stationary Reciprocating Internal Combustion Engines: If the compression ignition engine meets the requirements of 40 CFR Part 60 Subpart IIII, 40 CFR Part 63 Subpart ZZZZ requirements are also met. (40 CFR Part 63.6590(c))


Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in CV.4. of this section. b. Maintain records of the occurrence and duration of any startup, shutdown, or malfunction in the operation of an





293

Section VI. Specific Operating Conditions (continued) CW. Emission Unit PF1.514, PF1.520, and PF1.522

System 145A – Ames Cement and Shotcrete Batch Plant Location UTM (Zone 11, NAD 83) m North m East

PF1.514 Truck Discharge to Screw Conveyor #1 (followed by Screw conveyor #1 to Screw conveyor #2, previously permitted as System 145B PF1.515, and Screw Conveyor #2 to bucket elevator, previously permitted as System 145C PF1.516, both transfer points are fully enclosed.)

4,539,574 551,830

PF1.520 Cement Hopper Discharge to Mix Truck 4,539,576 551,834 PF1.522 Shotcrete Hopper Discharge to Mix Truck 4,539,580 551,834


Air Pollution Control Equipment a. Emissions from PF1.514, PF1.520, and PF1.522, each, shall be controlled by enclosures.

2. NAC 445B.3405 (NAC 445B.316) Part 70 Program Operating Parameters a. The maximum allowable throughput rate for PF1.514, PF1.520, and PF1.522, each, shall not exceed 90.0 tons of

cement or shotcrete per any one-hour period b. The Maximum allowable throughput rate for PF1.514 shall not exceed 75,000.0 tons per year, based on a 12-month

rolling period. c. The Maximum allowable throughput rate for PF1.520 shall not exceed 225,000.0 tons per year, based on a 12-month

rolling period. d. The Maximum allowable throughput rate for PF1.522 shall not exceed 150,000.0 tons per year, based on a 12-month

rolling period. e. Hours

(1) PF1.514, PF1.520, and PF1.522, each, may operate a total of 24 hours per day.








in diameter) to the atmosphere shall not exceed 2.37 pounds per hour, nor more than 2.96 tons per year, based on 12-month rolling period.





294

Section VI. Specific Operating Conditions (continued) CW. Emission Unit PF1.514, PF1.520, and PF1.522 (continued)


Emission Limits (continued) c. The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere



in diameter) to the atmosphere shall not exceed 2.37 pounds per hour, nor more than 1.97 tons per year, based on 12-month rolling period.


d. NAC 445B.22033 Federally Enforceable SIP Requirement – The maximum allowable discharge of PM10 (particulate matter less than or equal to 10 microns in diameter) to the atmosphere from PF1.514, PF1.520, and PF1.522, each, shall not exceed 50.23 pounds per hour.

e. NAC 445B.22017 Federally Enforceable SIP Requirement – The opacity from PF1.514, PF1.520, and PF1.522, each, shall not equal or exceed 20%.


Monitoring The permittee, upon issuance of this operating permit, shall: a. Monitor and record the throughput for PF1.514, PF1.520, and PF1.522, each, on a daily basis. b. Monitor and record the hours of operation for PF1.514, PF1.520, and PF1.522, each, on a daily basis. c. Record the average hourly throughput rate (in tons per hour) for PF1.514, PF1.520, and PF1.522, each, using the

daily throughput and the daily hours of operation. d. Record the throughput rate of cement or shotcrete for PF1.514, PF1.520, and PF1.522, each, on a cumulative

monthly basis, for each 12- month rolling period. e. Conduct and record an observation of opacity on PF1.514, PF1.520, and PF1.522, each, on a monthly basis while

operating. Method 9 in Appendix A of 40 CFR Part 60 shall be used to determine opacity. The minimum total time of observations shall be six minutes (24 consecutive observations recorded at 15 second intervals), unless otherwise specified by an applicable subpart.

f. Inspect the enclosures installed on PF1.514, PF1.520, and PF1.522, each, on a monthly basis to confirm that the enclosure is in place and functioning properly. If the enclosure is in disrepair, the Permittee shall initiate corrective action within 24 hours and complete corrective action as expediently as practical to ensure that the enclosure is functioning properly. The Permittee must record each inspection of the enclosures, including the date of each inspection and any corrective actions taken.


Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in CW.4 of this section.




295

Section VI. Specific Operating Conditions (continued) CX. Emission Units S2.365 through S2.368

System 145B – Ames Cement and Shotcrete Batch Plant Location UTM (Zone 11, NAD 83) m North m East

S2.365 Cement Silo #1 Loading (followed by Cement Silo #1 Discharge to Cement Hopper, formerly permitted under System 145E PF1.519, transfer point is fully enclosed)

4,539,576 551,834

S2.366 Shotcrete Silo Loading (Shotcrete Silo Discharge to Shotcrete Hopper, fully enclosed, previously permitted as PF1.521 under System 145G) 4,539,580 551,834

S2.367 Cement Silo #2 Loading (Cement Silo #2 Discharge to Screw Conveyor #3, fully enclosed transfer point formerly permitted as PF1.517 under System 145I and screw conveyor #3 to bucket elevator also fully enclosed permitted previously under System 145J PF1.518)

4,539,579 551,844

S2.368 Silo #4 Loading (Silo #4 Discharge to Screw Conveyor #4, fully enclosed, previously PF1.523 in System 145N and Screw conveyor #4 to screw conveyor #3, formerly permitted as PF1.524 in System 145O. Followed by screw conveyor #3 to bucket elevator also fully enclosed permitted previously under System 145J PF1.518)

4,539,583 551,844


Air Pollution Control Equipment a. Emissions from S2.365 through S2.368, each, shall each be controlled by a vent filter. b. Descriptive Stack Parameters for S2.365, S2.367, and S2.368


c. Descriptive Stack Parameters for S2.366 Stack Height: 68.0 feet Stack Diameter: 1.00 foot Stack Temperature: ambient Exhaust Flow: 1,402 dry standard cubic feet per minute (dscfm)


Operating Parameters a. The maximum allowable throughput rate for S2.365 through S2.368, each, shall not exceed 90.0 tons of cement or

shotcrete per any one-hour period. b. The maximum allowable throughput rate of cement or shotcrete for S2.365 shall not exceed more than 225,000.0

tons per year, based on a 12-month rolling period. c. The maximum allowable throughput rate of cement or shotcrete for S2.366 shall not exceed more than 150,000.0

tons per year, based on a 12-month rolling period. d. The maximum allowable throughput rate of cement or shotcrete for S2.367 and S2.368, each, shall not exceed

more than 75,000.0 tons per year, based on a 12-month rolling period. e. Hours





296

Section VI. Specific Operating Conditions (continued) CX. Emission Units S2.365 through S2.368 (continued)







b. The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from S2.366, the following pollutants in excess of the following specified limits: (1) NAC 445B.305 Part 70 Program – The discharge of PM (particulate matter) to the atmosphere shall not




c. The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from S2.367 and S2.368, each, the following pollutants in excess of the following specified limits: (1) NAC 445B.305 Part 70 Program – The discharge of PM (particulate matter) to the atmosphere shall not




d. NAC 445B.22033 Federally Enforceable SIP Requirement – The maximum allowable discharge of PM10 (particulate matter less than or equal to 10 microns in diameter) to the atmosphere from S2.365 through S2.368, each, shall not exceed 50.23 pounds per hour.

e. NAC 445B.22017 Federally Enforceable SIP Requirement – The opacity from S2.365 through S2.368, each, shall not equal or exceed 20%.




297

Section VI. Specific Operating Conditions (continued) CX. Emission Units S2.365 through S2.368 (continued)


Monitoring The permittee, upon issuance of this operating permit, shall: a. Monitor and record the throughput for S2.365 through S2.368, each, on a daily basis. b. Monitor and record the hours of operation for S2.365 through S2.368, each, on a daily basis. c. Record the average hourly throughput rate (in tons per hour) for S2.365 through S2.368, each, using the daily

throughput and the daily hours of operation. d. Record the throughput rate of cement or shotcrete for S2.365 through S2.368, each, on a cumulative monthly

basis, for each 12- month rolling period. e. Conduct and record an observation of visible emissions (excluding water vapor) on the vent filters on a monthly


f. Inspect the vent filter installed on S2.365 through S2.368, each, in accordance with the manufacturer’s operation and maintenance manual and record the results (e.g. the condition of the filter fabric), and any corrective actions taken. If no operation and maintenance manual is available, inspections shall be conducted monthly.


Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in CX.4 of this section.




298

Section VI. Specific Operating Conditions (continued) CY. Emission Unit PF1.525

System 146 – Regen Bag Splitter Location UTM (Zone 11, NAD 83) m North m East

PF1.525 Bag Splitter and Transfer to Mixing Tank or Bin 4,536,395 554,477



Operating Parameters a. The maximum allowable throughput rate for PF1.525 shall not exceed 40.0 tons of Regen 1 per any one-hour period,










hours of operation. d. Record the throughput rate of Regen 1 for PF1.525 on a cumulative monthly basis, for each 12- month rolling






299

Section VI. Specific Operating Conditions (continued) CY. Emission Unit PF1.525 (continued)





Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in CY.4. of this section.




300

Section VI. Specific Operating Conditions (continued) CZ. Emission Unit S2.369

System 147A – Vent Shaft Backup Generator (Located in the Meikle Underground Area) Location UTM (Zone 11, NAD 83) m North m East

S2.369 Vent Shaft Backup Generator KFE-001 (1,125 hp, Caterpillar, model D399, manufactured pre-2006)

4,539,285 551,975





Operating Parameters a. S2.369 may consume only diesel. b. The maximum allowable fuel consumption rate for S2.369 shall not exceed 56.25 gallons of diesel per any one-hour

period. c. Hours

(1) S2.369 may operate a total of 24 hours per day. (2) S2.369 operate a maximum of 100 hours per year of non-emergency use. There is no time limit on operation

in emergency situations.










i NAC 445B.22017 Federally Enforceable SIP Requirement – The opacity from S2.369 shall not equal or exceed 20%.




301

Section VI. Specific Operating Conditions (continued) CZ. Emission Unit S2.369 (continued)


Emission Limits (continued) The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from S2.369 the following pollutants in excess of the following specified limits: j. NAC 445B.22047 Federally Enforceable SIP Requirement – The maximum allowable discharge of Sulfur to the

atmosphere from S2.369 shall not exceed 5.51 pounds per hour.

4. NAC 445B.3405 (NAC 445B.316) Part 70 Program Monitoring The permittee, upon issuance of this operating permit, shall: a. Monitor and record the total daily hours of operation for S2.369 for each day of operation. The Permittee shall note


maximum hourly fuel consumption rate as stated in CZ.2.b. of this section and the total daily hours of operation. c. Monitor and record the total yearly hours of operation of S2.369, per year. The annual hours of operation shall be



Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in CZ.4. of this section.













302





time to a period needed for appropriate and safe loading of the engine, not to exceed 30 minutes, after which time the emission standards applicable to all times other than startup in in CZ.6.a of this section. (40 CFR 63.6625(h))

(4) The Permittee has the option of utilizing an oil analysis program in order to extend the specified oil change requirement in CZ.6.a.(1) of this section. The oil analysis must be performed at the same frequency specified for changing the oil in CZ.6.a.(1) of this section. The analysis program must at a minimum analyze the following three parameters: Total Base Number, viscosity, and percent water content. The condemning limits for these parameters are as follows: Total Base Number is less than 30 percent of the Total Base Number of the oil when new; viscosity of the oil has changed by more than 20 percent from the viscosity of the oil when new; or percent water content (by volume) is greater than 0.5. If all of these condemning limits are not exceeded, the Permittee is not required to change the oil. If any of the limits are exceeded, the Permittee must change the oil within 2 business days of receiving the results of the analysis; if the engine is not in operation when the results of the analysis are received, the engine owner or operator must change the oil within 2 business days or before commencing operation, whichever is later. The Permittee must keep records of the parameters that are analyzed as part of the program, the results of the analysis, and the oil changes for the engine. The analysis program must be part of the maintenance plan for the engine. (40 CFR 63.6625(i))




(3) Permittee must demonstrate continuous compliance with each emission limitation, operating limitation, and other requirements in CZ.6.a of this section that applies to the Permittee according to methods specified below: (40 CFR 63.6640(a), Table 6) (a) Operating and maintaining the stationary RICE according to the manufacturer's emission-related



(4) The Permittee must operate the emergency stationary RICE according to the requirements in CZ.6.d.(4)(a) through (c) of this section. In order for the engine to be considered an emergency stationary RICE under this subpart, any operation other than emergency operation, maintenance and testing, emergency demand response, and operation in non-emergency situations for 50 hours per year, as described in CZ.6.d.(4)(a) through (c) of this section, is prohibited. If the Permittee does not operate the engine according to the requirements in CZ.6.d.(4)(a) through (c) of this section, the engine will not be considered an emergency engine under this subpart and must meet all requirements for non-emergency engines. (40 CFR 63.6640(f))




303



National Emissions Standards for Hazardous Air Pollutants (NESHAP) – 40 CFR Part 63 Subpart ZZZZ – for Stationary Reciprocating Internal Combustion Engines (continued)

(a) There is no time limit on the use of emergency stationary RICE in emergency situations. (40 CFR 63.6640(f)(1))

(b) The Permittee may operate their emergency stationary RICE for any combination of the purposes specified in CZ.6.d.(4)(b)(i) of this section for a maximum of 100 hours per calendar year. Any operation for non-emergency situations as allowed by CZ.6.d.(c) of this section counts as part of the 100 hours per calendar year. (40 CFR 63.6640(f)(2)) i. Emergency stationary RICE may be operated for maintenance checks and readiness testing,


(c) Emergency stationary RICE located at area sources of HAP may be operated for up to 50 hours per calendar year in non-emergency situations. The 50 hours of operation in non-emergency situations are counted as part of the 100 hours per calendar year for maintenance and testing and emergency demand response provided in CZ.6.d.(4)(b) of this section. Except as provided in in CZ.6.d.(4)(c)(i) and (ii) of this section, the 50 hours per year for non-emergency situations cannot be used for peak shaving or non-emergency demand response, or to generate income for a facility to an electric grid or otherwise supply power as part of a financial arrangement with another entity. (40 CFR 63.6640(f)(4)) i. Prior to May 3, 2014, the 50 hours per year for non-emergency situations can be used for peak






(3) Records of performance tests and performance evaluations as required in 40 CFR Part 63.10(b)(2)(viii). (40 CFR 63.6655(a)(3))

(4) Records of all required maintenance performed on the RICE and any air pollution control and monitoring equipment. (40 CFR 63.6655(a)(4))

(5) Records of actions taken during periods of malfunction to minimize emissions in accordance with CZ.6.d.(2) of this section including corrective actions to restore malfunctioning process and air pollution control and monitoring equipment to its normal or usual manner of operation. (40 CFR 63.6655(a)(5))

(6) The Permittee must keep the records required in with CZ.6.d.(3) of this section to show continuous compliance with each emission or operating limitation that applies. (40 CFR 63.6655(d))




304









305

Section VI. Specific Operating Conditions (continued) DA. Emission Unit S2.371

System 147B – North Area Tails Seepage Generator (Located in the Roaster Area) Location UTM (Zone 11, NAD 83) m North m East

S2.371 North Area Tails Seepage Generator MP-609 (810 hp, Caterpillar, model 3412, manufactured pre-2006)

4,538,184 553,181






period. c. Hours








e. NAC 445B.305 Part 70 Program – The discharge of NOX (oxides of nitrogen) to the atmosphere shall not exceed 18.14 pounds per hour, nor more than 0.91 ton per year, based on 12-month rolling period.




i NAC 445B.22017 Federally Enforceable SIP Requirement – The opacity from S2.371 shall not equal or exceed 20%.




306

Section VI. Specific Operating Conditions (continued) DA. Emission Unit S2.371 (continued)


Emission Limits (continued) The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from S2.371 the following pollutants in excess of the following specified limits: j. NAC 445B.22047 Federally Enforceable SIP Requirement – The maximum allowable discharge of Sulfur to the

atmosphere from S2.371 shall not exceed 3.97 pounds per hour.



maximum hourly fuel consumption rate as stated in DA.2.b. of this section and the total daily hours of operation. c. Monitor and record the total yearly hours of operation of S2.371, per year. The annual hours of operation shall be



Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in DA.4. of this section.













307





time to a period needed for appropriate and safe loading of the engine, not to exceed 30 minutes, after which time the emission standards applicable to all times other than startup in in DA.6.a of this section. (40 CFR 63.6625(h))

(4) The Permittee has the option of utilizing an oil analysis program in order to extend the specified oil change requirement in DA.6.a.(1) of this section. The oil analysis must be performed at the same frequency specified for changing the oil in DA.6.a.(1) of this section. The analysis program must at a minimum analyze the following three parameters: Total Base Number, viscosity, and percent water content. The condemning limits for these parameters are as follows: Total Base Number is less than 30 percent of the Total Base Number of the oil when new; viscosity of the oil has changed by more than 20 percent from the viscosity of the oil when new; or percent water content (by volume) is greater than 0.5. If all of these condemning limits are not exceeded, the Permittee is not required to change the oil. If any of the limits are exceeded, the Permittee must change the oil within 2 business days of receiving the results of the analysis; if the engine is not in operation when the results of the analysis are received, the engine owner or operator must change the oil within 2 business days or before commencing operation, whichever is later. The Permittee must keep records of the parameters that are analyzed as part of the program, the results of the analysis, and the oil changes for the engine. The analysis program must be part of the maintenance plan for the engine. (40 CFR 63.6625(i))




(3) Permittee must demonstrate continuous compliance with each emission limitation, operating limitation, and other requirements in DA.6.a of this section that applies to the Permittee according to methods specified below: (40 CFR 63.6640(a), Table 6) (a) Operating and maintaining the stationary RICE according to the manufacturer's emission-related



(4) The Permittee must operate the emergency stationary RICE according to the requirements in DA.6.d.(4)(a) through (c) of this section. In order for the engine to be considered an emergency stationary RICE under this subpart, any operation other than emergency operation, maintenance and testing, emergency demand response, and operation in non-emergency situations for 50 hours per year, as described in DA.6.d.(4)(a) through (c) of this section, is prohibited. If the Permittee does not operate the engine according to the requirements in DA.6.d.(4)(a) through (c) of this section, the engine will not be considered an emergency engine under this subpart and must meet all requirements for non-emergency engines. (40 CFR 63.6640(f))




308




(a) There is no time limit on the use of emergency stationary RICE in emergency situations. (40 CFR 63.6640(f)(1))

(b) The Permittee may operate their emergency stationary RICE for any combination of the purposes specified in DA.6.d.(4)(b)(i) of this section for a maximum of 100 hours per calendar year. Any operation for non-emergency situations as allowed by DA.6.d.(c) of this section counts as part of the 100 hours per calendar year. (40 CFR 63.6640(f)(2)) i. Emergency stationary RICE may be operated for maintenance checks and readiness testing,


(c) Emergency stationary RICE located at area sources of HAP may be operated for up to 50 hours per calendar year in non-emergency situations. The 50 hours of operation in non-emergency situations are counted as part of the 100 hours per calendar year for maintenance and testing and emergency demand response provided in DA.6.d.(4)(b) of this section. Except as provided in in DA.6.d.(4)(c)(i) and (ii) of this section, the 50 hours per year for non-emergency situations cannot be used for peak shaving or non-emergency demand response, or to generate income for a facility to an electric grid or otherwise supply power as part of a financial arrangement with another entity. (40 CFR 63.6640(f)(4)) i. Prior to May 3, 2014, the 50 hours per year for non-emergency situations can be used for peak








(5) Records of actions taken during periods of malfunction to minimize emissions in accordance with DA.6.d.(2) of this section including corrective actions to restore malfunctioning process and air pollution control and monitoring equipment to its normal or usual manner of operation. (40 CFR 63.6655(a)(5))

(6) The Permittee must keep the records required in with DA.6.d.(3) of this section to show continuous compliance with each emission or operating limitation that applies. (40 CFR 63.6655(d))




309









310

Section VI. Specific Operating Conditions (continued) DB. Emission Unit S2.373

System 147C – Dispatch Backup Generator (Located in the Open Pit Area) Location UTM (Zone 11, NAD 83) m North m East

S2.373 Dispatch Backup Generator MP-751 (102 hp, Cummins, model 4BT3.9 G2, manufactured pre-2006) 4,535,778 551,608






period. c. Hours











h. NAC 445B.22017 Federally Enforceable SIP Requirement – The opacity from S2.373 shall not equal or exceed 20%.

i. NAC 445B.22047 Federally Enforceable SIP Requirement – The maximum allowable discharge of Sulfur to the atmosphere from S2.373 shall not exceed 0.5 pounds per hour




311

Section VI. Specific Operating Conditions (continued) DB. Emission Unit S2.373 (continued)



maximum hourly fuel consumption rate as stated in DB.2.b. of this section and the total daily hours of operation. c. Monitor and record the total yearly hours of operation of S2.373, per year. The annual hours of operation shall be



Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in DB.4. of this section.











time to a period needed for appropriate and safe loading of the engine, not to exceed 30 minutes, after which time the emission standards applicable to all times other than startup in DB.6.a of this section. (40 CFR 63.6625(h))




312




(4) The Permittee has the option of utilizing an oil analysis program in order to extend the specified oil change requirement in DB.6.a.(1) of this section. The oil analysis must be performed at the same frequency specified for changing the oil in DB.6.a.(1) of this section. The analysis program must at a minimum analyze the following three parameters: Total Base Number, viscosity, and percent water content. The condemning limits for these parameters are as follows: Total Base Number is less than 30 percent of the Total Base Number of the oil when new; viscosity of the oil has changed by more than 20 percent from the viscosity of the oil when new; or percent water content (by volume) is greater than 0.5. If all of these condemning limits are not exceeded, the Permittee is not required to change the oil. If any of the limits are exceeded, the Permittee must change the oil within 2 business days of receiving the results of the analysis; if the engine is not in operation when the results of the analysis are received, the engine owner or operator must change the oil within 2 business days or before commencing operation, whichever is later. The Permittee must keep records of the parameters that are analyzed as part of the program, the results of the analysis, and the oil changes for the engine. The analysis program must be part of the maintenance plan for the engine. (40 CFR 63.6625(i))




(3) Permittee must demonstrate continuous compliance with each emission limitation, operating limitation, and other requirements in DB.6.a of this section according to methods specified below: (40 CFR 63.6640(a), Table 6) (a) Operating and maintaining the stationary RICE according to the manufacturer's emission-related



(4) The Permittee must operate the emergency stationary RICE according to the requirements in DB.6.d.(4)(a) through (c) of this section. In order for the engine to be considered an emergency stationary RICE under this subpart, any operation other than emergency operation, maintenance and testing, emergency demand response, and operation in non-emergency situations for 50 hours per year, as described in DB.6.d.(4)(a) through (c) of this section, is prohibited. If the Permittee does not operate the engine according to the requirements in DB.6.d.(4)(a) through (c) of this section, the engine will not be considered an emergency engine under this subpart and must meet all requirements for non-emergency engines. (40 CFR 63.6640(f)) (a) There is no time limit on the use of emergency stationary RICE in emergency situations. (40 CFR


specified in DB.6.d.(4)(b)(i) of this section for a maximum of 100 hours per calendar year. Any operation for non-emergency situations as allowed by DB.6.d.(c) of this section counts as part of the 100 hours per calendar year. (40 CFR 63.6640(f)(2))




313




i. Emergency stationary RICE may be operated for maintenance checks and readiness testing, provided that the tests are recommended by federal, state or local government, the manufacturer, the vendor, the regional transmission organization or equivalent balancing authority and transmission operator, or the insurance company associated with the engine. The Permittee may petition the Administrator for approval of additional hours to be used for maintenance checks and readiness testing, but a petition is not required if the owner or operator maintains records indicating that federal, state, or local standards require maintenance and testing of emergency RICE beyond 100 hours per calendar year. (40 CFR 63.6640(f)(2)(i))

(c) Emergency stationary RICE located at area sources of HAP may be operated for up to 50 hours per calendar year in non-emergency situations. The 50 hours of operation in non-emergency situations are counted as part of the 100 hours per calendar year for maintenance and testing and emergency demand response provided in DB.6.d.(4)(b) of this section. Except as provided in DB.6.d.(4)(c)(i) and (ii) of this section, the 50 hours per year for non-emergency situations cannot be used for peak shaving or non-emergency demand response, or to generate income for a facility to an electric grid or otherwise supply power as part of a financial arrangement with another entity. (40 CFR 63.6640(f)(4)) i. Prior to May 3, 2014, the 50 hours per year for non-emergency situations can be used for peak








(5) Records of actions taken during periods of malfunction to minimize emissions in accordance with DB.6.d.(2) of this section including corrective actions to restore malfunctioning process and air pollution control and monitoring equipment to its normal or usual manner of operation. (40 CFR 63.6655(a)(5))

(6) The Permittee must keep the records required in with DB.6.d.(3) of this section to show continuous compliance with each emission or operating limitation that applies. (40 CFR 63.6655(d))





314








315

Section VI. Specific Operating Conditions (continued) DC. Emission Unit S2.374

System 147D – Meikle Fire Pump (Located in the Meikle Underground Area) Location UTM (Zone 11, NAD 83) m North m East

S2.374 Meikle Fire Pump KFU-100-FFU (245 hp, Detroit, model DDFP-04AT 7004, manufactured pre-2006) 4,539,289 551,705






period. c. Hours
















316

Section VI. Specific Operating Conditions (continued) DC. Emission Unit S2.374 (continued)



maximum hourly fuel consumption rate as stated in DC.2.b. of this section and the total daily hours of operation. c. Monitor and record the total yearly hours of operation of S2.374, per year. The annual hours of operation shall be



Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in DC.4. of this section.

6. Federal Requirements (NAC 445B.3405, NAC 445B.252(1)) (Federally Enforceable SIP Requirement)










time to a period needed for appropriate and safe loading of the engine, not to exceed 30 minutes, after which time the emission standards applicable to all times other than startup in DC.6.a of this section. (40 CFR 63.6625(h))




317




(4) The Permittee has the option of utilizing an oil analysis program in order to extend the specified oil change requirement in DC.6.a.(1) of this section. The oil analysis must be performed at the same frequency specified for changing the oil in DC.6.a.(1) of this section. The analysis program must at a minimum analyze the following three parameters: Total Base Number, viscosity, and percent water content. The condemning limits for these parameters are as follows: Total Base Number is less than 30 percent of the Total Base Number of the oil when new; viscosity of the oil has changed by more than 20 percent from the viscosity of the oil when new; or percent water content (by volume) is greater than 0.5. If all of these condemning limits are not exceeded, the Permittee is not required to change the oil. If any of the limits are exceeded, the Permittee must change the oil within 2 business days of receiving the results of the analysis; if the engine is not in operation when the results of the analysis are received, the engine owner or operator must change the oil within 2 business days or before commencing operation, whichever is later. The Permittee must keep records of the parameters that are analyzed as part of the program, the results of the analysis, and the oil changes for the engine. The analysis program must be part of the maintenance plan for the engine. (40 CFR 63.6625(i))




(3) Permittee must demonstrate continuous compliance with each emission limitation, operating limitation, and other requirements in DC.6.a of this section according to methods specified below: (40 CFR 63.6640(a), Table 6) (a) Operating and maintaining the stationary RICE according to the manufacturer's emission-related



(4) The Permittee must operate the emergency stationary RICE according to the requirements in DC.6.d.(4)(a) through (c) of this section. In order for the engine to be considered an emergency stationary RICE under this subpart, any operation other than emergency operation, maintenance and testing, emergency demand response, and operation in non-emergency situations for 50 hours per year, as described in DC.6.d.(4)(a) through (c) of this section, is prohibited. If the Permittee does not operate the engine according to the requirements in DC.6.d.(4)(a) through (c) of this section, the engine will not be considered an emergency engine under this subpart and must meet all requirements for non-emergency engines. (40 CFR 63.6640(f)) (a) There is no time limit on the use of emergency stationary RICE in emergency situations. (40 CFR


specified in DC.6.d.(4)(b)(i) of this section for a maximum of 100 hours per calendar year. Any operation for non-emergency situations as allowed by DC.6.d.(c) of this section counts as part of the 100 hours per calendar year. (40 CFR 63.6640(f)(2))




318


6. Federal Requirements (NAC 445B.3405 , NAC 445B.252(1)) (Federally Enforceable SIP Requirement)



(c) Emergency stationary RICE located at area sources of HAP may be operated for up to 50 hours per calendar year in non-emergency situations. The 50 hours of operation in non-emergency situations are counted as part of the 100 hours per calendar year for maintenance and testing and emergency demand response provided in DC.6.d.(4)(b) of this section. Except as provided in DC.6.d.(4)(c)(i) and (ii) of this section, the 50 hours per year for non-emergency situations cannot be used for peak shaving or non-emergency demand response, or to generate income for a facility to an electric grid or otherwise supply power as part of a financial arrangement with another entity. (40 CFR 63.6640(f)(4)) i. Prior to May 3, 2014, the 50 hours per year for non-emergency situations can be used for peak








(5) Records of actions taken during periods of malfunction to minimize emissions in accordance with DC.6.d.(2) of this section including corrective actions to restore malfunctioning process and air pollution control and monitoring equipment to its normal or usual manner of operation. (40 CFR 63.6655(a)(5))

(6) The Permittee must keep the records required in with DC.6.d.(3) of this section to show continuous compliance with each emission or operating limitation that applies. (40 CFR 63.6655(d))





319








320

Section VI. Specific Operating Conditions (continued) DD. Emission Unit S2.375

System 147E – Roaster Fire Pump (Located in the Roaster Area) Location UTM (Zone 11, NAD 83) m North m East

S2.375 Roaster Fire Pump RC-6514 (265 hp, Detroit, model DDFP-L6FA 8393F, manufactured pre-2006) 4,538,337 552,150






period. c. Hours
















321

Section VI. Specific Operating Conditions (continued) DD. Emission Unit S2.375 (continued)



maximum hourly fuel consumption rate as stated in DD.2.b. of this section and the total daily hours of operation. c. Monitor and record the total yearly hours of operation of S2.375, per year. The annual hours of operation shall be



Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in DD.4. of this section.











time to a period needed for appropriate and safe loading of the engine, not to exceed 30 minutes, after which time the emission standards applicable to all times other than startup in DD.6.a of this section. (40 CFR 63.6625(h))




322




(4) The Permittee has the option of utilizing an oil analysis program in order to extend the specified oil change requirement in DD.6.a.(1) of this section. The oil analysis must be performed at the same frequency specified for changing the oil in DD.6.a.(1) of this section. The analysis program must at a minimum analyze the following three parameters: Total Base Number, viscosity, and percent water content. The condemning limits for these parameters are as follows: Total Base Number is less than 30 percent of the Total Base Number of the oil when new; viscosity of the oil has changed by more than 20 percent from the viscosity of the oil when new; or percent water content (by volume) is greater than 0.5. If all of these condemning limits are not exceeded, the Permittee is not required to change the oil. If any of the limits are exceeded, the Permittee must change the oil within 2 business days of receiving the results of the analysis; if the engine is not in operation when the results of the analysis are received, the engine owner or operator must change the oil within 2 business days or before commencing operation, whichever is later. The Permittee must keep records of the parameters that are analyzed as part of the program, the results of the analysis, and the oil changes for the engine. The analysis program must be part of the maintenance plan for the engine. (40 CFR 63.6625(i))




(3) Permittee must demonstrate continuous compliance with each emission limitation, operating limitation, and other requirements in DD.6.a of this section according to methods specified below: (40 CFR 63.6640(a), Table 6) (a) Operating and maintaining the stationary RICE according to the manufacturer's emission-related



(4) The Permittee must operate the emergency stationary RICE according to the requirements in DD.6.d.(4)(a) through (c) of this section. In order for the engine to be considered an emergency stationary RICE under this subpart, any operation other than emergency operation, maintenance and testing, emergency demand response, and operation in non-emergency situations for 50 hours per year, as described in DD.6.d.(4)(a) through (c) of this section, is prohibited. If the Permittee does not operate the engine according to the requirements in DD.6.d.(4)(a) through (c) of this section, the engine will not be considered an emergency engine under this subpart and must meet all requirements for non-emergency engines. (40 CFR 63.6640(f)) (a) There is no time limit on the use of emergency stationary RICE in emergency situations. (40 CFR


specified in DD.6.d.(4)(b)(i) of this section for a maximum of 100 hours per calendar year. Any operation for non-emergency situations as allowed by DD.6.d.(c) of this section counts as part of the 100 hours per calendar year. (40 CFR 63.6640(f)(2))




323





(c) Emergency stationary RICE located at area sources of HAP may be operated for up to 50 hours per calendar year in non-emergency situations. The 50 hours of operation in non-emergency situations are counted as part of the 100 hours per calendar year for maintenance and testing and emergency demand response provided in DD.6.d.(4)(b) of this section. Except as provided in DD.6.d.(4)(c)(i) and (ii) of this section, the 50 hours per year for non-emergency situations cannot be used for peak shaving or non-emergency demand response, or to generate income for a facility to an electric grid or otherwise supply power as part of a financial arrangement with another entity. (40 CFR 63.6640(f)(4)) i. Prior to May 3, 2014, the 50 hours per year for non-emergency situations can be used for peak








(5) Records of actions taken during periods of malfunction to minimize emissions in accordance with DD.6.d.(2) of this section including corrective actions to restore malfunctioning process and air pollution control and monitoring equipment to its normal or usual manner of operation. (40 CFR 63.6655(a)(5))

(6) The Permittee must keep the records required in with DD.6.d.(3) of this section to show continuous compliance with each emission or operating limitation that applies. (40 CFR 63.6655(d))





324








325

Section VI. Specific Operating Conditions (continued) DE. Emission Unit S2.376

System 147F – Mill Fire Pump (Located in the Mill Area) Location UTM (Zone 11, NAD 83) m North m East

S2.376 Mill Fire Pump MT-302 (149 hp, Cummins, model V-378, manufactured pre-2006) 4,536,137 554,523 1. NAC 445B.3405 (NAC 445B.316) Part 70 Program





period. c. Hours












i. NAC 445B.22047 Federally Enforceable SIP Requirement – The maximum allowable discharge of Sulfur to the atmosphere from S2.376 shall not exceed 0.73 pound per hour




326

Section VI. Specific Operating Conditions (continued) DE. Emission Unit S2.376 (continued)



maximum hourly fuel consumption rate as stated in DE.2.b. of this section and the total daily hours of operation. c. Monitor and record the total yearly hours of operation of S2.376, per year. The annual hours of operation shall be



Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in DE.4. of this section.











time to a period needed for appropriate and safe loading of the engine, not to exceed 30 minutes, after which time the emission standards applicable to all times other than startup in DE.6.a of this section. (40 CFR 63.6625(h))




327




(4) The Permittee has the option of utilizing an oil analysis program in order to extend the specified oil change requirement in DE.6.a.(1) of this section. The oil analysis must be performed at the same frequency specified for changing the oil in DE.6.a.(1) of this section. The analysis program must at a minimum analyze the following three parameters: Total Base Number, viscosity, and percent water content. The condemning limits for these parameters are as follows: Total Base Number is less than 30 percent of the Total Base Number of the oil when new; viscosity of the oil has changed by more than 20 percent from the viscosity of the oil when new; or percent water content (by volume) is greater than 0.5. If all of these condemning limits are not exceeded, the Permittee is not required to change the oil. If any of the limits are exceeded, the Permittee must change the oil within 2 business days of receiving the results of the analysis; if the engine is not in operation when the results of the analysis are received, the engine owner or operator must change the oil within 2 business days or before commencing operation, whichever is later. The Permittee must keep records of the parameters that are analyzed as part of the program, the results of the analysis, and the oil changes for the engine. The analysis program must be part of the maintenance plan for the engine. (40 CFR 63.6625(i))




(3) Permittee must demonstrate continuous compliance with each emission limitation, operating limitation, and other requirements in DE.6.a of this section according to methods specified below: (40 CFR 63.6640(a), Table 6) (a) Operating and maintaining the stationary RICE according to the manufacturer's emission-related



(4) The Permittee must operate the emergency stationary RICE according to the requirements in DE.6.d.(4)(a) through (c) of this section. In order for the engine to be considered an emergency stationary RICE under this subpart, any operation other than emergency operation, maintenance and testing, emergency demand response, and operation in non-emergency situations for 50 hours per year, as described in DE.6.d.(4)(a) through (c) of this section, is prohibited. If the Permittee does not operate the engine according to the requirements in DE.6.d.(4)(a) through (c) of this section, the engine will not be considered an emergency engine under this subpart and must meet all requirements for non-emergency engines. (40 CFR 63.6640(f)) (a) There is no time limit on the use of emergency stationary RICE in emergency situations. (40 CFR


specified in DE.6.d.(4)(b)(i) of this section for a maximum of 100 hours per calendar year. Any operation for non-emergency situations as allowed by DE.6.d.(c) of this section counts as part of the 100 hours per calendar year. (40 CFR 63.6640(f)(2))




328





(c) Emergency stationary RICE located at area sources of HAP may be operated for up to 50 hours per calendar year in non-emergency situations. The 50 hours of operation in non-emergency situations are counted as part of the 100 hours per calendar year for maintenance and testing and emergency demand response provided in DE.6.d.(4)(b) of this section. Except as provided in DE.6.d.(4)(c)(i) and (ii) of this section, the 50 hours per year for non-emergency situations cannot be used for peak shaving or non-emergency demand response, or to generate income for a facility to an electric grid or otherwise supply power as part of a financial arrangement with another entity. (40 CFR 63.6640(f)(4)) i. Prior to May 3, 2014, the 50 hours per year for non-emergency situations can be used for peak








(5) Records of actions taken during periods of malfunction to minimize emissions in accordance with DE.6.d.(2) of this section including corrective actions to restore malfunctioning process and air pollution control and monitoring equipment to its normal or usual manner of operation. (40 CFR 63.6655(a)(5))

(6) The Permittee must keep the records required in with DE.6.d.(3) of this section to show continuous compliance with each emission or operating limitation that applies. (40 CFR 63.6655(d))





329








330

Section VI. Specific Operating Conditions (continued) DF. Emission Unit S2.377

System 147G – Cooling Plant Fire Pump (Located in the Mill Area) Location UTM (Zone 11, NAD 83) m North m East

S2.377 Cooling Plant Fire Pump BV-1105 (235 hp, Caterpillar, model 3208, manufactured pre-2006) 4,533,300 547,262






period. c. Hours
















331

Section VI. Specific Operating Conditions (continued) DF. Emission Unit S2.377 (continued)



maximum hourly fuel consumption rate as stated in DF.2.b. of this section and the total daily hours of operation. c. Monitor and record the total yearly hours of operation of S2.377, per year. The annual hours of operation shall be



Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in DF.4. of this section.











time to a period needed for appropriate and safe loading of the engine, not to exceed 30 minutes, after which time the emission standards applicable to all times other than startup in DF.6.a of this section. (40 CFR 63.6625(h))




332




(4) The Permittee has the option of utilizing an oil analysis program in order to extend the specified oil change requirement in DF.6.a.(1) of this section. The oil analysis must be performed at the same frequency specified for changing the oil in DF.6.a.(1) of this section. The analysis program must at a minimum analyze the following three parameters: Total Base Number, viscosity, and percent water content. The condemning limits for these parameters are as follows: Total Base Number is less than 30 percent of the Total Base Number of the oil when new; viscosity of the oil has changed by more than 20 percent from the viscosity of the oil when new; or percent water content (by volume) is greater than 0.5. If all of these condemning limits are not exceeded, the Permittee is not required to change the oil. If any of the limits are exceeded, the Permittee must change the oil within 2 business days of receiving the results of the analysis; if the engine is not in operation when the results of the analysis are received, the engine owner or operator must change the oil within 2 business days or before commencing operation, whichever is later. The Permittee must keep records of the parameters that are analyzed as part of the program, the results of the analysis, and the oil changes for the engine. The analysis program must be part of the maintenance plan for the engine. (40 CFR 63.6625(i))




(3) Permittee must demonstrate continuous compliance with each emission limitation, operating limitation, and other requirements in DF.6.a of this section according to methods specified below: (40 CFR 63.6640(a), Table 6) (a) Operating and maintaining the stationary RICE according to the manufacturer's emission-related



(4) The Permittee must operate the emergency stationary RICE according to the requirements in DF.6.d.(4)(a) through (c) of this section. In order for the engine to be considered an emergency stationary RICE under this subpart, any operation other than emergency operation, maintenance and testing, emergency demand response, and operation in non-emergency situations for 50 hours per year, as described in DF.6.d.(4)(a) through (c) of this section, is prohibited. If the Permittee does not operate the engine according to the requirements in DF.6.d.(4)(a) through (c) of this section, the engine will not be considered an emergency engine under this subpart and must meet all requirements for non-emergency engines. (40 CFR 63.6640(f)) (a) There is no time limit on the use of emergency stationary RICE in emergency situations. (40 CFR


specified in DF.6.d.(4)(b)(i) of this section for a maximum of 100 hours per calendar year. Any operation for non-emergency situations as allowed by DF.6.d.(c) of this section counts as part of the 100 hours per calendar year. (40 CFR 63.6640(f)(2))




333





(c) Emergency stationary RICE located at area sources of HAP may be operated for up to 50 hours per calendar year in non-emergency situations. The 50 hours of operation in non-emergency situations are counted as part of the 100 hours per calendar year for maintenance and testing and emergency demand response provided in DF.6.d.(4)(b) of this section. Except as provided in DF.6.d.(4)(c)(i) and (ii) of this section, the 50 hours per year for non-emergency situations cannot be used for peak shaving or non-emergency demand response, or to generate income for a facility to an electric grid or otherwise supply power as part of a financial arrangement with another entity. (40 CFR 63.6640(f)(4)) i. Prior to May 3, 2014, the 50 hours per year for non-emergency situations can be used for peak








(5) Records of actions taken during periods of malfunction to minimize emissions in accordance with DF.6.d.(2) of this section including corrective actions to restore malfunctioning process and air pollution control and monitoring equipment to its normal or usual manner of operation. (40 CFR 63.6655(a)(5))

(6) The Permittee must keep the records required in with DF.6.d.(3) of this section to show continuous compliance with each emission or operating limitation that applies. (40 CFR 63.6655(d))





334








335

Section VI. Specific Operating Conditions (continued) DG. Emission Unit S2.378

System 147H – Autoclave Hg Control Generator (Located in the Autoclave Area) Location UTM (Zone 11, NAD 83) m North m East

S2.378 Autoclave Hg Control Generator (838 hp, Caterpillar, model c-18, manufactured 2011) 4,535,954 554,713






period. c. Hours










g. NAC 445B.305 Part 70 Program – The discharge of VOCs (volatile organic compounds) to the atmosphere shall not exceed 1.79 pounds per hour, nor more than 0.089 ton per year, based on 12-month rolling period.


i. NAC 445B.22047 Federally Enforceable SIP Requirement – The maximum allowable discharge of Sulfur to the atmosphere from S2.378 shall not exceed 4.11 pounds per hour.




336

Section VI. Specific Operating Conditions (continued) DG. Emission Unit S2.378 (continued)


Emission Limits (continued) The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from S2.378 the following pollutants in excess of the following specified limits: j. NAC 445B.2203 Federally Enforceable SIP Requirement – The maximum allowable discharge of PM10 (particulate





maximum hourly fuel consumption rate as stated in DG.2.b. of this section and the total daily hours of operation. c. Monitor and record the total yearly hours of operation of S2.378, per year. The annual hours of operation shall be



Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in DG.4. of this section. b. Maintain records of the occurrence and duration of any startup, shutdown, or malfunction in the operation of an



New Source Performance Standards (NSPS) – 40 CFR Part 60 Subpart IIII – Standards of Performance for Stationary Compression Ignition Internal Combustion Engines a. Emissions Standards (40 CFR 60.4205) The Permittee must comply with the emission standards for new non-road CI (compression ignition) ICE (internal


CFR 60.4202(a), 40 CFR 89.112 Table 1) (a) The discharge of PM to the atmosphere shall not exceed 0.2 gram/kW-hr (0.28 pound per hour). (b) The discharge of CO to the atmosphere shall not exceed 3.5 gram/kW-hr (4.82 pounds per hour). (c) The discharge of NMHC (non-methane hydrocarbon) + NOX to the atmosphere shall not exceed 6.4






337



New Source Performance Standards (NSPS) – 40 CFR Part 60 Subpart IIII – Standards of Performance for Stationary Compression Ignition Internal Combustion Engines (continued) b. Fuel Requirements (40 CFR 60.4207)

The Permittee must meet the following diesel requirements for non-road engine: (40 CFR 60.4207(b), 40 CFR 80.510(b)) (1) Sulfur content to be 15 parts per million (ppm) maximum. (2) A minimum cetane index of 40; or (3) A maximum aromatic content of 35 volume percent.





(3) The engine must be installed and configured according to the manufacturer's emission-related specifications, except as permitted in DG.6.d.(5) of this section. (40 CFR 60.4211(c))

(4) In order for the engine to be considered an emergency stationary ICE under this subpart, any operation other than emergency operation, maintenance and testing, emergency demand response, and operation in non-emergency situations for 50 hours per year, as described in paragraphs DG.6.d.(4)(a) through (c) of this section, is prohibited. If the Permittee do not operate the engine according to the requirements in paragraphs DG.6.d.(4)(a) through (c) of this section, the engine will not be considered an emergency engine under this subpart and must meet all requirements for non-emergency engines. (40 CFR 60.4211(f)) (a) There is no time limit on the use of emergency stationary ICE in emergency situations. (40 CFR


purposes specified in paragraphs DG.6.d.(4)(b) of this section for a maximum of 100 hours per calendar year. Any operation for non-emergency situations as allowed by paragraph DG.6.d.(4)(c) of this section counts as part of the 100 hours per calendar year. (40 CFR 60.4211(f)(2)) i. Emergency stationary ICE may be operated for maintenance checks and readiness testing,


(c) Emergency stationary ICE may be operated for up to 50 hours per calendar year in non-emergency situations. The 50 hours of operation in non-emergency situations are counted as part of the 100 hours per calendar year for maintenance and testing and emergency demand response provided in paragraph DG.6.d.(4)(b) of this section. Except as provided in paragraph DG.6.d.(4)(c) of this section, the 50 hours per calendar year for non-emergency situations cannot be used for peak shaving or non-emergency demand response, or to generate income for a facility to an electric grid or otherwise supply power as part of a financial arrangement with another entity. (40 CFR 60.4211(f)(3))




338



New Source Performance Standards (NSPS) – 40 CFR Part 60 Subpart IIII – Standards of Performance for Stationary Compression Ignition Internal Combustion Engines (continued) d. Compliance Requirements (40 CFR 60.4206, 40 CFR 60.4211)(continued)

i. The 50 hours per year for non-emergency situations can be used to supply power as part of a financial arrangement with another entity if all of the conditions in 40 CFR 60.4211(f)(3)(i)(A) through (E) are met. (40 CFR 60.4211(f)(3)(i))



e. National Emission Standards for Hazardous Air Pollutants for Source Categories – 40 CFR Part 63, Subpart ZZZZ – Standards for Hazardous Air Pollutants for Stationary Reciprocating Internal Combustion Engines: If the compression ignition engine meets the requirements of 40 CFR Part 60 Subpart IIII, 40 CFR Part 63 Subpart ZZZZ requirements are also met. (40 CFR Part 63.6590(c))




339

Section VI. Specific Operating Conditions (continued) DH. Emission Unit S2.380 System 147I – Main Guard Shack Emergency Generator (Located in the Guard Shack-

Open Pit Area) Location UTM (Zone 11, NAD 83)

m North m East S2.380 Main Guard Shack Emergency Generator (120 hp, Ford, model ESG642,

manufactured August 2007) 4,535,554 555,831





Operating Parameters a. S2.380 may consume only propane. b. The maximum allowable fuel consumption rate for S2.380 shall not exceed 9.18 gallons of propane per any one-

hour period. c. Hours












i. NAC 445B.22047 Federally Enforceable SIP Requirement – The maximum allowable discharge of Sulfur to the atmosphere from S2.380 shall not exceed 0.59 pound per hour.




340

Section VI. Specific Operating Conditions (continued) DH. Emission Unit S2.380 (continued)


which hours of operation are emergency hours, and which hours of operation are hours for non-emergency use. b. Monitor and record the consumption rate of propane on a daily basis for S2.380 (in gallons) by multiplying the

maximum hourly fuel consumption rate as stated in DH.2.b. of this section and the total daily hours of operation. c. Monitor and record the total yearly hours of operation of S2.380, per year. The annual hours of operation shall be



Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in DH.4. of this section.


National Emissions Standards for Hazardous Air Pollutants (NESHAP) – 40 CFR Part 63 Subpart ZZZZ – for Stationary Reciprocating Internal Combustion Engines a. Management Practices and Other Requirements (63.6603(a), Table 2d)

For each Emergency stationary SI RICE and black start stationary SI RICE, the Permittee must meet the following requirement, except during periods of startup: (1) Change oil and filter every 500 hours of operation or annually, whichever comes first; (2) Inspect spark plugs every 1,000 hours of operation or annually, whichever comes first, and replace as


necessary. b. Monitoring, Installation, Collection, Operation and Maintenance Requirements (40 CFR Part 63.6625)



time to a period needed for appropriate and safe loading of the engine, not to exceed 30 minutes, after which time the emission standards applicable to all times other than startup in DH.6.a of this section. (40 CFR 63.6625(h))




341



National Emissions Standards for Hazardous Air Pollutants (NESHAP) – 40 CFR Part 63 Subpart ZZZZ – for Stationary Reciprocating Internal Combustion Engines (continued) b. Monitoring, Installation, Collection, Operation and Maintenance Requirements (40 CFR Part 63.6625)(continued)

(4) The Permittee has the option of utilizing an oil analysis program in order to extend the specified oil change requirement in DH.6.a of this section. The oil analysis must be performed at the same frequency specified for changing the oil in DH.6.a.(1) of this section. The analysis program must at a minimum analyze the following three parameters: Total Acid Number, viscosity, and percent water content. The condemning limits for these parameters are as follows: Total Acid Number increases by more than 3.0 milligrams of potassium hydroxide (KOH) per gram from Total Acid Number of the oil when new; viscosity of the oil has changed by more than 20 percent from the viscosity of the oil when new; or percent water content (by volume) is greater than 0.5. If all of these condemning limits are not exceeded, the engine owner or operator is not required to change the oil. If any of the limits are exceeded, the engine owner or operator must change the oil within 2 business days of receiving the results of the analysis; if the engine is not in operation when the results of the analysis are received, the engine owner or operator must change the oil within 2 business days or before commencing operation, whichever is later. The owner or operator must keep records of the parameters that are analyzed as part of the program, the results of the analysis, and the oil changes for the engine. The analysis program must be part of the maintenance plan for the engine. (40 CFR 63.6625(j))

c. Compliance Requirements (40 CFR 63.6605, 63.6640, Table 6) (1) The Permittee must be in compliance with the emission limitations, operating limitations, and other



(3) Permittee must demonstrate continuous compliance with each emission limitation, operating limitation, and other requirements in DH.6.a of this section according to methods specified below: (40 CFR 63.6640(a), Table 6) (a) Operating and maintaining the stationary RICE according to the manufacturer's emission-related



(4) The Permittee must also report each instance in which the Permittee did not meet the requirements in Table 8 of Subpart ZZZZ. (40 CFR Part 63.6640(e))

(5) The Permittee must operate the emergency stationary RICE according to the requirements in DH.6.c.(5)(a) through (c) of this section. In order for the engine to be considered an emergency stationary RICE, any operation other than emergency operation, maintenance and testing, emergency demand response, and operation in non-emergency situations for 50 hours per year, as described in DH.6.c.(5)(a) through (c) of this section, is prohibited. If the Permittee does not operate the engine according to the requirements DH.6.c.(5)(a) through (c) of this section, the engine will not be considered an emergency engine under this subpart and must meet all requirements for non-emergency engines. (40 CFR Part 63.6640(f)) (a) There is no time limit on the use of emergency stationary RICE in emergency situations. (40 CFR

63.6640(f)(1))




342



National Emissions Standards for Hazardous Air Pollutants (NESHAP) – 40 CFR Part 63 Subpart ZZZZ – for Stationary Reciprocating Internal Combustion Engines (continued) c. Compliance Requirements (40 CFR 63.6605, 63.6640, Table 6)(continued)

(b) The Permittee may operate their emergency stationary RICE for any combination of the purposes specified in DH.6.c.(4)(b)(i) of this section for a maximum of 100 hours per calendar year. Any operation for non-emergency situations as allowed by DH.6.c.(4)(c) of this section counts as part of the 100 hours per calendar year. (40 CFR 63.6640(f)(2)) i. Emergency stationary RICE may be operated for maintenance checks and readiness testing,

provided that the tests are recommended by federal, state or local government, the manufacturer, the vendor, the regional transmission organization or equivalent balancing authority and transmission operator, or the insurance company associated with the engine. The Permittee may petition the Administrator for approval of additional hours to be used for maintenance checks and readiness testing, but a petition is not required if the Permittee maintains records indicating that federal, state, or local standards require maintenance and testing of emergency RICE beyond 100 hours per calendar year. (40 CFR 63.6640(f)(2)(i))

(c) Emergency stationary RICE located at area sources of HAP may be operated for up to 50 hours per calendar year in non-emergency situations. The 50 hours of operation in non-emergency situations are counted as part of the 100 hours per calendar year for maintenance and testing and emergency demand response provided in DH.6.c.(4)(b) of this section. Except as provided in DH.6.c.(4)(c)(i) and (ii) of this section, the 50 hours per year for non-emergency situations cannot be used for peak shaving or non-emergency demand response, or to generate income for a facility to an electric grid or otherwise supply power as part of a financial arrangement with another entity. (40 CFR 63.6640(f)(4)) i. Prior to May 3, 2014, the 50 hours per year for non-emergency situations can be used for peak



d. Recordkeeping Requirements: (40 CFR Part 63.6655) The Permittee must keep the following records: (1) A copy of each notification and report that the Permittee submitted to comply with this subpart, including all

documentation supporting any Initial Notification or Notification of Compliance Status that the Permittee submitted, according to the requirement in 40 CFR Part 63.10(b)(2)(xiv). (40 CFR 63.6655(a)(1))




(5) Records of actions taken during periods of malfunction to minimize emissions in accordance with DH.6.c.(2) of this section including corrective actions to restore malfunctioning process and air pollution control and monitoring equipment to its normal or usual manner of operation. (40 CFR 63.6655(a)(5))

(6) The Permittee must keep the records required in with DH.6.c.(3) of this section to show continuous compliance with each emission or operating limitation that applies. (40 CFR 63.6655(d))




343



National Emissions Standards for Hazardous Air Pollutants (NESHAP) – 40 CFR Part 63 Subpart ZZZZ – for Stationary Reciprocating Internal Combustion Engines (continued) d. Recordkeeping Requirements: (40 CFR Part 63.6655) (continued)






344

Section VI. Specific Operating Conditions (continued) DI. Emission Unit S2.381

System 147J – IT Server Backup Admin (Located in the Admin Area) Location UTM (Zone 11, NAD 83) m North m East

S2.381 IT Server Backup (admin) (134 hp, GM/Kohler, model 100RZG, manufactured July 2008) 4,535,980 554,466






















345

Section VI. Specific Operating Conditions (continued) DI. Emission Unit S2.381 (continued)



maximum hourly fuel consumption rate as stated in DI.2.b. of this section and the total daily hours of operation. c. Monitor and record the total yearly hours of operation of S2.381, per year. The annual hours of operation shall be



Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in DI.4. of this section.








time to a period needed for appropriate and safe loading of the engine, not to exceed 30 minutes, after which time the emission standards applicable to all times other than startup in DI.6.a of this section. (40 CFR 63.6625(h))




346




(4) The Permittee has the option of utilizing an oil analysis program in order to extend the specified oil change requirement in DI.6.a of this section. The oil analysis must be performed at the same frequency specified for changing the oil in DI.6.a.(1) of this section. The analysis program must at a minimum analyze the following three parameters: Total Acid Number, viscosity, and percent water content. The condemning limits for these parameters are as follows: Total Acid Number increases by more than 3.0 milligrams of potassium hydroxide (KOH) per gram from Total Acid Number of the oil when new; viscosity of the oil has changed by more than 20 percent from the viscosity of the oil when new; or percent water content (by volume) is greater than 0.5. If all of these condemning limits are not exceeded, the engine owner or operator is not required to change the oil. If any of the limits are exceeded, the engine owner or operator must change the oil within 2 business days of receiving the results of the analysis; if the engine is not in operation when the results of the analysis are received, the engine owner or operator must change the oil within 2 business days or before commencing operation, whichever is later. The owner or operator must keep records of the parameters that are analyzed as part of the program, the results of the analysis, and the oil changes for the engine. The analysis program must be part of the maintenance plan for the engine. (40 CFR 63.6625(j))




(3) Permittee must demonstrate continuous compliance with each emission limitation, operating limitation, and other requirements in DI.6.a of this section according to methods specified below: (40 CFR 63.6640(a), Table 6) (a) Operating and maintaining the stationary RICE according to the manufacturer's emission-related




(5) The Permittee must operate the emergency stationary RICE according to the requirements in DI.6.c.(5)(a) through (c) of this section. In order for the engine to be considered an emergency stationary RICE, any operation other than emergency operation, maintenance and testing, emergency demand response, and operation in non-emergency situations for 50 hours per year, as described in DI.6.c.(5)(a) through (c) of this section, is prohibited. If the Permittee does not operate the engine according to the requirements DI.6.c.(5)(a) through (c) of this section, the engine will not be considered an emergency engine under this subpart and must meet all requirements for non-emergency engines. (40 CFR Part 63.6640(f)) (a) There is no time limit on the use of emergency stationary RICE in emergency situations. (40 CFR

63.6640(f)(1))




347




(b) The Permittee may operate their emergency stationary RICE for any combination of the purposes specified in DI.6.c.(4)(b)(i) of this section for a maximum of 100 hours per calendar year. Any operation for non-emergency situations as allowed by DI.6.c.(4)(c) of this section counts as part of the 100 hours per calendar year. (40 CFR 63.6640(f)(2)) i. Emergency stationary RICE may be operated for maintenance checks and readiness testing,


(c) Emergency stationary RICE located at area sources of HAP may be operated for up to 50 hours per calendar year in non-emergency situations. The 50 hours of operation in non-emergency situations are counted as part of the 100 hours per calendar year for maintenance and testing and emergency demand response provided in DI.6.c.(4)(b) of this section. Except as provided in DI.6.c.(4)(c)(i) and (ii) of this section, the 50 hours per year for non-emergency situations cannot be used for peak shaving or non-emergency demand response, or to generate income for a facility to an electric grid or otherwise supply power as part of a financial arrangement with another entity. (40 CFR 63.6640(f)(4)) i. Prior to May 3, 2014, the 50 hours per year for non-emergency situations can be used for peak








(5) Records of actions taken during periods of malfunction to minimize emissions in accordance with DI.6.c.(2) of this section including corrective actions to restore malfunctioning process and air pollution control and monitoring equipment to its normal or usual manner of operation. (40 CFR 63.6655(a)(5))

(6) The Permittee must keep the records required in with DI.6.c.(3) of this section to show continuous compliance with each emission or operating limitation that applies. (40 CFR 63.6655(d))




348









349

Section VI. Specific Operating Conditions (continued) DJ. Emission Unit S2.391 System 147K – UG Rodeo Emergency Generator (Located in the Rodeo Underground

Area) Location UTM (Zone 11, NAD 83)

m North m East S2.391 UG Rodeo Emergency Generator (268 hp, Caterpillar, model 3306, manufactured

pre-2006) 4,538,113 552,087






period. c. Hours
















350

Section VI. Specific Operating Conditions (continued) DJ. Emission Unit S2.391 (continued)



maximum hourly fuel consumption rate as stated in DJ.2.b. of this section and the total daily hours of operation. c. Monitor and record the total yearly hours of operation of S2.391, per year. The annual hours of operation shall be



Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in DJ.4. of this section.











time to a period needed for appropriate and safe loading of the engine, not to exceed 30 minutes, after which time the emission standards applicable to all times other than startup in DJ.6.a of this section. (40 CFR 63.6625(h))




351




(4) The Permittee has the option of utilizing an oil analysis program in order to extend the specified oil change requirement in DJ.6.a.(1) of this section. The oil analysis must be performed at the same frequency specified for changing the oil in DJ.6.a.(1) of this section. The analysis program must at a minimum analyze the following three parameters: Total Base Number, viscosity, and percent water content. The condemning limits for these parameters are as follows: Total Base Number is less than 30 percent of the Total Base Number of the oil when new; viscosity of the oil has changed by more than 20 percent from the viscosity of the oil when new; or percent water content (by volume) is greater than 0.5. If all of these condemning limits are not exceeded, the Permittee is not required to change the oil. If any of the limits are exceeded, the Permittee must change the oil within 2 business days of receiving the results of the analysis; if the engine is not in operation when the results of the analysis are received, the engine owner or operator must change the oil within 2 business days or before commencing operation, whichever is later. The Permittee must keep records of the parameters that are analyzed as part of the program, the results of the analysis, and the oil changes for the engine. The analysis program must be part of the maintenance plan for the engine. (40 CFR 63.6625(i))




(3) Permittee must demonstrate continuous compliance with each emission limitation, operating limitation, and other requirements in DJ.6.a of this section according to methods specified below: (40 CFR 63.6640(a), Table 6) (a) Operating and maintaining the stationary RICE according to the manufacturer's emission-related



(4) The Permittee must operate the emergency stationary RICE according to the requirements in DJ.6.d.(4)(a) through (c) of this section. In order for the engine to be considered an emergency stationary RICE under this subpart, any operation other than emergency operation, maintenance and testing, emergency demand response, and operation in non-emergency situations for 50 hours per year, as described in DJ.6.d.(4)(a) through (c) of this section, is prohibited. If the Permittee does not operate the engine according to the requirements in DJ.6.d.(4)(a) through (c) of this section, the engine will not be considered an emergency engine under this subpart and must meet all requirements for non-emergency engines. (40 CFR 63.6640(f)) (a) There is no time limit on the use of emergency stationary RICE in emergency situations. (40 CFR


specified in DJ.6.d.(4)(b)(i) of this section for a maximum of 100 hours per calendar year. Any operation for non-emergency situations as allowed by DJ.6.d.(c) of this section counts as part of the 100 hours per calendar year. (40 CFR 63.6640(f)(2))




352





(c) Emergency stationary RICE located at area sources of HAP may be operated for up to 50 hours per calendar year in non-emergency situations. The 50 hours of operation in non-emergency situations are counted as part of the 100 hours per calendar year for maintenance and testing and emergency demand response provided in DJ.6.d.(4)(b) of this section. Except as provided in DJ.6.d.(4)(c)(i) and (ii) of this section, the 50 hours per year for non-emergency situations cannot be used for peak shaving or non-emergency demand response, or to generate income for a facility to an electric grid or otherwise supply power as part of a financial arrangement with another entity. (40 CFR 63.6640(f)(4)) i. Prior to May 3, 2014, the 50 hours per year for non-emergency situations can be used for peak








(5) Records of actions taken during periods of malfunction to minimize emissions in accordance with DJ.6.d.(2) of this section including corrective actions to restore malfunctioning process and air pollution control and monitoring equipment to its normal or usual manner of operation. (40 CFR 63.6655(a)(5))

(6) The Permittee must keep the records required in with DJ.6.d.(3) of this section to show continuous compliance with each emission or operating limitation that applies. (40 CFR 63.6655(d))





353








354

Section VI. Specific Operating Conditions (continued) DK. Emission Unit S2.392

System 147L – NG Distribution Area Generator (Located in the Open Pit Area) Location UTM (Zone 11, NAD 83) m North m East

S2.392 NG Distribution Area Generator (120 hp, Ford, model ESG64216005E, manufactured June 2001) 4,535,914 555,756






















355

Section VI. Specific Operating Conditions (continued) DK. Emission Unit S2.392 (continued)



maximum hourly fuel consumption rate as stated in DK.2.b. of this section and the total daily hours of operation. c. Monitor and record the total yearly hours of operation of S2.392, per year. The annual hours of operation shall be



Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in DK.4. of this section.








time to a period needed for appropriate and safe loading of the engine, not to exceed 30 minutes, after which time the emission standards applicable to all times other than startup in DK.6.a of this section. (40 CFR 63.6625(h))




356




(4) The Permittee has the option of utilizing an oil analysis program in order to extend the specified oil change requirement in DK.6.a of this section. The oil analysis must be performed at the same frequency specified for changing the oil in DK.6.a.(1) of this section. The analysis program must at a minimum analyze the following three parameters: Total Acid Number, viscosity, and percent water content. The condemning limits for these parameters are as follows: Total Acid Number increases by more than 3.0 milligrams of potassium hydroxide (KOH) per gram from Total Acid Number of the oil when new; viscosity of the oil has changed by more than 20 percent from the viscosity of the oil when new; or percent water content (by volume) is greater than 0.5. If all of these condemning limits are not exceeded, the engine owner or operator is not required to change the oil. If any of the limits are exceeded, the engine owner or operator must change the oil within 2 business days of receiving the results of the analysis; if the engine is not in operation when the results of the analysis are received, the engine owner or operator must change the oil within 2 business days or before commencing operation, whichever is later. The owner or operator must keep records of the parameters that are analyzed as part of the program, the results of the analysis, and the oil changes for the engine. The analysis program must be part of the maintenance plan for the engine. (40 CFR 63.6625(j))




(3) Permittee must demonstrate continuous compliance with each emission limitation, operating limitation, and other requirements in DK.6.a of this section according to methods specified below: (40 CFR 63.6640(a), Table 6) (a) Operating and maintaining the stationary RICE according to the manufacturer's emission-related




(5) The Permittee must operate the emergency stationary RICE according to the requirements in DK.6.c.(5)(a) through (c) of this section. In order for the engine to be considered an emergency stationary RICE, any operation other than emergency operation, maintenance and testing, emergency demand response, and operation in non-emergency situations for 50 hours per year, as described in DK.6.c.(5)(a) through (c) of this section, is prohibited. If the Permittee does not operate the engine according to the requirements DK.6.c.(5)(a) through (c) of this section, the engine will not be considered an emergency engine under this subpart and must meet all requirements for non-emergency engines. (40 CFR Part 63.6640(f)) (a) There is no time limit on the use of emergency stationary RICE in emergency situations. (40 CFR

63.6640(f)(1))




357




(b) The Permittee may operate their emergency stationary RICE for any combination of the purposes specified in DK.6.c.(4)(b)(i) of this section for a maximum of 100 hours per calendar year. Any operation for non-emergency situations as allowed by DK.6.c.(4)(c) of this section counts as part of the 100 hours per calendar year. (40 CFR 63.6640(f)(2)) i. Emergency stationary RICE may be operated for maintenance checks and readiness testing,


(c) Emergency stationary RICE located at area sources of HAP may be operated for up to 50 hours per calendar year in non-emergency situations. The 50 hours of operation in non-emergency situations are counted as part of the 100 hours per calendar year for maintenance and testing and emergency demand response provided in DK.6.c.(4)(b) of this section. Except as provided in DK.6.c.(4)(c)(i) and (ii) of this section, the 50 hours per year for non-emergency situations cannot be used for peak shaving or non-emergency demand response, or to generate income for a facility to an electric grid or otherwise supply power as part of a financial arrangement with another entity. (40 CFR 63.6640(f)(4)) i. Prior to May 3, 2014, the 50 hours per year for non-emergency situations can be used for peak








(5) Records of actions taken during periods of malfunction to minimize emissions in accordance with DK.6.c.(2) of this section including corrective actions to restore malfunctioning process and air pollution control and monitoring equipment to its normal or usual manner of operation. (40 CFR 63.6655(a)(5))

(6) The Permittee must keep the records required in with DK.6.c.(3) of this section to show continuous compliance with each emission or operating limitation that applies. (40 CFR 63.6655(d))




358









359

Section VI. Specific Operating Conditions (continued) DL. Emission Unit S2.385

System 149 – Meikle Refrigeration Plant - Condenser Cooling Tower Location UTM (Zone 11, NAD 83) m North m East

S2.385 Meikle Refrigeration Plant - Condenser Cooling Tower 4,539,430 551,799


Exhaust Flow: 491,312 dry standard cubic feet per minute (dscfm)







pounds per hour, nor more than 7.85 tons per year, based on a 12-month rolling period. b. NAC 445B.305 Part 70 Program - The discharge of PM10 (particulate matter less than or equal to 10 microns in

diameter) to the atmosphere shall not exceed 1.79 pounds per hour, nor more than 7.85 tons per year, based on a 12-month rolling period.










360


DL. Emission Units S2.385 (continued)



million (ppm). The TDS shall be determined in accordance with DL.4.a. above. 6. NAC 445B.3405 (NAC 445B.316) Part 70 Program

Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in DL.5. of this section.




361

Section VI. Specific Operating Conditions (continued) DM. Emission Units S2.390 and PF1.529

System 151 – Surface Filtration Plant Lime Silo Location UTM (Zone 11, NAD 83) m North m East

S2.390 Lime Silo Loading (pneumatic) 4,539,384 551,903 PF1.529 Lime Silo Discharge to Lime Slaker

1. NAC 445B.3405 (NAC 445B.316) Part 70 Program Air Pollution Control Equipment a. Emissions from S2.390 shall be controlled by a vent filter. b. PF1.529 shall be controlled by an enclosure. c. Descriptive Stack Parameters for S2.390



more than 2,500.0 tons per year, based on a 12-month rolling period. b. The maximum allowable throughput rate for PF1.529 shall not exceed 0.6 tons of lime per any one-hour period, nor

more than 2,500.0 tons per year, based on a 12-month rolling period. c. Hours












362

Section VI. Specific Operating Conditions (continued) DM. Emission Units S2.390 and PF1.529 (continued)











throughput and the daily hours of operation. d. Record the throughput rate of lime for S2.390 and PF1.529, each, on a cumulative monthly basis, for each 12-

month rolling period. e. Conduct and record an observation of visible emissions (excluding water vapor) on the vent filter on a monthly basis






Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in DM.4. of this section.




363

Section VI. Specific Operating Conditions (continued) DN. Emission Unit S2.393

System 152 – NBTDF Pump Station Emergency Generator Location UTM (Zone 11, NAD 83) m North m East

S2.393 NBTDF Pump Station Emergency Generator (2,206 hp, Caterpillar, model 3512C, manufactured 2013) 4,538,608 552,915



Stack Height: 6.0 feet Stack Diameter: 0.67 feet Stack Temperature: 759°F Exhaust Flow: 10,909 actual cubic feet per minute (acfm)



period. c. Hours










g. NAC 445B.305 Part 70 Program – The discharge of VOCs (volatile organic compounds) to the atmosphere shall not exceed 1.32 pounds per hour, nor more than 0.07 ton per year, based on 12-month rolling period.


i. NAC 445B.22047 Federally Enforceable SIP Requirement – The maximum allowable discharge of Sulfur to the atmosphere from S2.393 shall not exceed 10.29 pounds per hour.




364

Section VI. Specific Operating Conditions (continued) DN. Emission Unit S2.393 (continued)


Emission Limits (continued) The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from S2.393 the following pollutants in excess of the following specified limits: j. NAC 445B.2203 Federally Enforceable SIP Requirement – The maximum allowable discharge of PM10 (particulate





maximum hourly fuel consumption rate as stated in DN.2.b. of this section and the total daily hours of operation. c. Monitor and record the total yearly hours of operation of S2.393, per year. The annual hours of operation shall be



Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in DN.4. of this section. b. Maintain records of the occurrence and duration of any startup, shutdown, or malfunction in the operation of an



New Source Performance Standards (NSPS) – 40 CFR Part 60 Subpart IIII – Standards of Performance for Stationary Compression Ignition Internal Combustion Engines a. Emissions Standards (40 CFR 60.4205) The Permittee must comply with the emission standards for new non-road CI (compression ignition) ICE (internal


CFR 60.4202(a), 40 CFR 89.112 Table 1) (a) The discharge of PM to the atmosphere shall not exceed 0.2 grams/kW-hr (0.73 pound per hour). (b) The discharge of CO to the atmosphere shall not exceed 3.5 grams/kW-hr (12.69 pounds per hour). (c) The discharge of NMHC (non-methane hydrocarbon) + NOX to the atmosphere shall not exceed 6.4







365



New Source Performance Standards (NSPS) – 40 CFR Part 60 Subpart IIII – Standards of Performance for Stationary Compression Ignition Internal Combustion Engines (continued) c. Monitoring Requirements (40 CFR 60.4209)

If the CI ICE does not meet the standards applicable to non-emergency engines, the Permittee must install a non-resettable hour meter prior to startup of the engine. (40 CFR 60.4209(a))




(3) The engine must be installed and configured according to the manufacturer's emission-related specifications, except as permitted in DN.6.d.(5) of this section. (40 CFR 60.4211(c))

(4) In order for the engine to be considered an emergency stationary ICE under this subpart, any operation other than emergency operation, maintenance and testing, emergency demand response, and operation in non-emergency situations for 50 hours per year, as described in paragraphs DN.6.d.(4)(a) through (c) of this section, is prohibited. If the Permittee do not operate the engine according to the requirements in paragraphs DN.6.d.(4)(a) through (c) of this section, the engine will not be considered an emergency engine under this subpart and must meet all requirements for non-emergency engines. (40 CFR 60.4211(f)) (a) There is no time limit on the use of emergency stationary ICE in emergency situations. (40 CFR


purposes specified in paragraphs DN.6.d.(4)(b) of this section for a maximum of 100 hours per calendar year. Any operation for non-emergency situations as allowed by paragraph DN.6.d.(4)(c) of this section counts as part of the 100 hours per calendar year. (40 CFR 60.4211(f)(2)) i. Emergency stationary ICE may be operated for maintenance checks and readiness testing,


(c) Emergency stationary ICE may be operated for up to 50 hours per calendar year in non-emergency situations. The 50 hours of operation in non-emergency situations are counted as part of the 100 hours per calendar year for maintenance and testing and emergency demand response provided in paragraph DN.6.d.(4)(b) of this section. Except as provided in paragraph DN.6.d.(4)(c) of this section, the 50 hours per calendar year for non-emergency situations cannot be used for peak shaving or non-emergency demand response, or to generate income for a facility to an electric grid or otherwise supply power as part of a financial arrangement with another entity. (40 CFR 60.4211(f)(3)) i. The 50 hours per year for non-emergency situations can be used to supply power as part of a





366






e. National Emission Standards for Hazardous Air Pollutants for Source Categories – 40 CFR Part 63, Subpart ZZZZ – Standards for Hazardous Air Pollutants for Stationary Reciprocating Internal Combustion Engines: If the compression ignition engine meets the requirements of 40 CFR Part 60 Subpart IIII, 40 CFR Part 63 Subpart ZZZZ requirements are also met. (40 CFR Part 63.6590(c))




367

Section VI. Specific Operating Conditions (continued) DO. Emission Unit S2.394

System 153 – TSA System Regen Heater Location UTM (Zone 11, NAD 83) m North m East

S2.394 TSA System Regen Heater 4,538,547 552,125 1. NAC 445B.3405 (NAC 445B.316) Part 70 Program


Stack Height: 42.0 feet Stack Diameter: 2.67 feet Stack Temperature: 306°F Exhaust Flow: 3,646 actual cubic feet per minute (acfm)


Operating Parameters a. S2.394 may consume natural gas. b. The maximum allowable fuel consumption rate for S2.394 shall not exceed 11,275.0 cubic feet of natural gas per

any one-hour period, nor more than 98,769,000.0 cubic feet per year, based on a 12-month rolling period. c. Hours
















368

Section VI. Specific Operating Conditions (continued) DO. Emission Unit S2.394 (continued)

4. NAC 445B.3405 (NAC 445B.316) Part 70 Program Monitoring The permittee, upon issuance of this operating permit, shall: a. Monitor and record the hours of operation while consuming natural gas for S2.394 on a daily basis. b. Monitor and record the consumption rate of natural gas on a daily basis for S2.394 (in cubic feet). c. Record the consumption rate of natural gas (in cubic feet) for S2.394 on a cumulative monthly basis, for each 12-


5. NAC 445B.3405 (NAC 445B.316) Part 70 Program Recordkeeping a. Permittee shall maintain, in a contemporaneous log, the monitoring required in DO.4. of this section.

****End of Specific Operating Conditions****




369

Section VII. Mercury Emission Standards A. NESHAP for the Gold Mine Ore Processing and Production Area Source Category – 40 CFR Part 63, Subpart EEEEEEE

(40 CFR 63.11640 et. seq.) – Ore Pre-Treatment Processes Affected Source

1. Affected Source – Ore Pre-Treatment (40 CFR 63.11640) The following process units listed in Table VII-1 define the existing affected source for Ore Pre-Treatment Processes:

Table VII - 1

40 CFR Part 63, Subpart EEEEEEE Affected Source – Ore Pre-Treatment Processes Process Unit Description Final Emission Point

System 15 – Mill #1 Pre-heater and Mill #1 Dry Grinding Process • S2.204 Mill #1 Air Pre-heater

Baghouses DC-204.1, DC-204.2, and DC-205 operating

in parallel.

System 16 – Mill #2 Pre-heater and Mill #2 Dry Grinding Process • S2.206 Mill #2 Air Pre-heater

Baghouses DC-206.1, DC-206.2, and DC-207 operating

in parallel. System 18 – Roaster Circuit: Ore Roasting Process

• S2.209.1 Roaster #1 • S2.209.2 Roaster #2

Selective Catalytic Reduction (SCR-201)

System 19 – Roaster Circuit: Quenching Process • S2.210 Roaster #1 Quench Tank • S2.211 Roaster #2 Quench Tank

Venturi Scrubber (VS-203) and Venturi Scrubber (VS-

204) System 66A – Autoclave Circuit - Autoclave #1

• S2.015 Autoclave #1 Venturi Scrubber

System 66B – Autoclave Circuit - Autoclave #2 and Autoclave #3 • S2.016 Autoclave #2 • S2.017 Autoclave #3

S2.016 and S2.017, each, shall be controlled by a

Venturi Scrubber and will share a common stack.

System 66C – Autoclave Circuit - Autoclave #4, Autoclave #5, and Autoclave #6 • S2.018 Autoclave #4 • S2.019 Autoclave #5 • S2.020 Autoclave #6

Carbon Filter

2. Compliance Date (40 CFR 63.11641)

Permittee must comply with the provisions of Subpart EEEEEEE no later than February 17, 2014. 3. Mercury Emission Standards (40 CFR 63.11645)

Permittee shall not discharge or cause to be discharged from the assemblage of process units listed in Table VII-1 of this section, combined mercury emissions in excess of the following limit for the existing affected source: a. For existing Ore Pre-Treatment Processes, Permittee must emit no more than 127 pounds of mercury per million

tons of ore processed (40 CFR 63.11645). b. The standards set forth in this section apply at all times (40 CFR 63.11645(i)).

4. Compliance Requirements (40 CFR 63.11646)

a. Permittee must conduct a mercury compliance emission test within 180 days of the compliance date for all process units at new and existing affected sources, according to those applicable requirements in 40 CFR 63.11646(a)(1) through (13) of 40 CFR Part 63, Subpart EEEEEEE. This compliance testing must be repeated annually thereafter, with no two consecutive annual compliance tests occurring less than 3 months apart or more than 15 months apart (40 CFR 63.11646(a)).




370

Section VII. Mercury Emission Standards (continued) A. NESHAP for the Gold Mine Ore Processing and Production Area Source Category – 40 CFR Part 63, Subpart EEEEEEE

(40 CFR 63.11640 et. seq.) – Ore Pre-Treatment Processes Affected Source (continued) 4. Compliance Requirements (40 CFR 63.11646) (continued)

b. At all times, Permittee must operate and maintain any affected source, including associated air pollution control equipment and monitoring equipment, in a manner consistent with safety and good air pollution control practices for minimizing emissions. Determination of whether such operation and maintenance procedures are being used will be based on information available to the Administrator which may include, but is not limited to, monitoring results, review of operation and maintenance procedures, review of operation and maintenance records, and inspection of the source (40 CFR 63.11646(b)).

5. Monitoring Requirements (40 CFR 63.11647)

a. Permittee must monitor each roaster for mercury emissions using one of the procedures in 40 CFR 63.11647(a)(1), (a)(2), or (a)(3) of 40 CFR Part 63, Subpart EEEEEEE, and establish operating limits for mercury concentration as described in 40 CFR 63.11647(a)(4). (40 CFR 63.11647(a)) (1) Perform sampling and analysis of the roaster's exhaust for mercury concentration using EPA Performance

Specification 12B (40 CFR part 60, appendix B and Procedure 5 of appendix F) or EPA Method 30B (40 CFR part 60, appendix A-8) at least twice per month. A minimum of two measurements must be taken per month that are at least 11 days apart from other consecutive tests. The mercury concentration must be maintained below the operating limit established in 40 CFR 63.11647 (a)(4). The results of the sampling must be obtained within 72 hours of the time the sample is taken. (40 CFR 63.11647(a)(1))

(2) Use Equation (2) of 40 CFR 63.11647(a) to establish an upper operating limit for mercury concentration as determined by using the procedure in 40 CFR 63.11647(a)(1) concurrently while conducting annual compliance performance stack tests according to the procedures in 40 CFR 63.11646(a). (40 CFR 63.11647(a)(4))

OLR = Ctest * (EL/CT) (Equation 2) Where: OLR = mercury concentration operating limit for the roaster (or roasters that share a common stack) (in

micrograms per cubic meter); Ctest = average mercury concentration measured by the monitoring procedures (EPA Method 30B) during the

compliance performance stack test (in micrograms per cubic meter); EL = emission standard for ore pretreatment processes (in lb/million tons of ore); CT = compliance test results for ore pretreatment processes (in lb/million tons of ore).




371


(40 CFR 63.11640 et. seq.) – Ore Pre-Treatment Processes Affected Source (continued)

5. Monitoring Requirements (40 CFR 63.11647) (continued) b. For facilities with roasters and a calomel-based mercury control system that choose to monitor for mercury emissions

using the procedures in 40 CFR 63.11647(a)(1) or that qualify for and choose to follow the requirements in 40 CFR 63.11647(a)(5), the Permittee must establish operating parameter limits for scrubber liquor flow (or line pressure) and scrubber inlet gas temperature and monitor these parameters. The Permittee may establish operating parameter limits from the initial compliance test, according to the manufacturer's specifications, or based on limits established by the BAPC. If the Permittee chooses to establish operating parameter limits from the initial compliance test, monitor the scrubber liquor flow (or line pressure) and scrubber inlet gas temperature during each run of the initial compliance test. The minimum operating limit for scrubber liquor flow rate (or line pressure) is either the lowest value during any run of the initial compliance test or 10 percent less than the average value measured during the compliance test, and the maximum scrubber inlet temperature limit is the highest temperature measured during any run of the initial compliance test or 10 percent higher than the average value measured during the compliance test. The Permittee must monitor the scrubber liquor flow rate (or line pressure) and scrubber inlet gas temperature hourly and maintain the scrubber liquor flow (or line pressure) at or above the established operating parameter and maintain the inlet gas temperature below the established operating parameter limit. (40 CFR 63.11647(b))

c. For facilities with roasters and a calomel-based mercury control system that choose to monitor for mercury emissions using the procedures in 40 CFR 63.11647 (a)(1) or that qualify for and follow the requirements in 40 CFR 63.11647 (a)(5), the Permittee must establish operating parameter ranges for mercuric ion and chloride ion concentrations or for oxidation reduction potential and pH using the procedures in 40 CFR 63.11647 (c)(1) or (c)(2) respectively. (40 CFR 63.11647(c))

d. If the Permittee have an exceedance of a control device operating parameter range provided in paragraphs 40 CFR 63.11647 (b) or (c), the Permittee must take corrective action and bring the parameters back into the established parametric ranges. If the corrective actions taken following an exceedance do not result in the operating parameter value being returned within the established range within 48 hours, a mercury concentration measurement (with PS 12B or PS 12A CEMS (40 CFR part 60, appendix B and Procedure 5 of appendix F), Method 30B or Method 29 (40 CFR part 60, appendix A-8), or ASTM D6784 (incorporated by reference—see 40 CFR 63.14)) must be made to determine if the operating limit for mercury concentration is being exceeded. The measurement must be performed and the mercury concentration determined within 48 hours (after the initial 48 hours, or a total of 96 hours from the time the parameter range was exceeded). If the measured mercury concentration meets the operating limit for mercury concentration established under 40 CFR 63.11647(a)(4), the corrective actions are deemed successful, and the owner or operator can request the BAPC to establish a new limit or range for the parameter. If the measured mercury concentration exceeds the operating limit for mercury concentration after these 96 hours, the exceedance must be reported as a deviation within 24 hours to the BAPC and the owner or operator must conduct a full compliance test pursuant to 40 CFR 63.11646(a) for the roaster operations within 40 days to determine if the affected source is in compliance with the MACT emission standard. For facilities that have roasters and autoclaves, the owner or operator can use the results of the previous compliance test for the autoclaves to determine the emissions for those process units to be used in the calculations of the emissions for the affected source. If the source is determined to be in compliance with the MACT emission standard, the compliance test may also be used to establish a new operating limit for mercury concentration (see paragraph (e) of 40 CFR 63.11647). (40 CFR 63.11647(d))

e. The Permittee may submit a request to the BAPC for approval to change the operating limits established under 40 CFR 63.11647 (a)(4) for the monitoring required in 40 CFR 63.11647 (a)(1),(a)(2), or (a)(3). In the request, the Permittee must demonstrate that the proposed change to the operating limit detects changes in levels of mercury emission control. An approved change to the operating limit under this paragraph only applies until a new operating limit is established during the next annual compliance test. (40 CFR 63.11647(e))

f. The Permittee must monitor each process unit at each new and existing affected source that uses a carbon adsorber to control mercury emissions using the procedures in paragraphs 40 CFR 63.11647 (f)(1) or (f)(2). A carbon adsorber may include a fixed carbon bed, carbon filter packs or modules, carbon columns, and other variations. (40 CFR 63.11647(f))




372


(40 CFR 63.11640 et. seq.) – Ore Pre-Treatment Processes Affected Source (continued)

5. Monitoring Requirements (40 CFR 63.11647) (continued) g. The Permittee must monitor gas stream temperature at the inlet to the carbon adsorber for each process unit (i.e.,

carbon kiln, melt furnace, etc.) equipped with a carbon adsorber. Establish a maximum value for the inlet temperature either during the annual performance test (required in 40 CFR 63.11646(a)), according to the manufacturer's specifications, or as approved by the BAPC. If the Permittee chooses to establish the temperature operating limit during the performance test, establish the temperature operating limit based on either the highest reading during the test or at 10 °F higher than the average temperature measured during the performance test. Monitor the inlet temperature once per shift. If an inlet temperature exceeds the temperature operating limit, the Permittee must take corrective actions to get the temperature back within the parameter operating limit within 48 hours. If the exceedance persists, within 144 hours of the exceedance, the Permittee must sample and analyze the exhaust stream from the carbon adsorber using Method 30B (40 CFR part 60, appendix A-8) and compare to an operating limit (calculated pursuant to 40 CFR 63.11647 (f)(1)(i)) or the Permittee must conduct carbon sampling pursuant to 40 CFR 63.11647 (f)(2). If the concentration measured with Method 30B is below 90 percent of the operating limit or the carbon sampling results are below 90 percent of the carbon loading capacity, the Permittee may set a new temperature operating limit 10 °F above the previous operating limit or at an alternative level approved by the BAPC. If the concentration is above 90 percent of the operating limit or above 90 percent of the carbon loading capacity the Permittee must change the carbon in the bed within 30 days and report the event to the BAPC, and reestablish an appropriate maximum temperature limit based on approval of the BAPC. (40 CFR 63.11647(g))

h. For each wet scrubber at each new and existing affected source not followed by a mercury control system, the Permittee must monitor the water flow rate (or line pressure) and pressure drop. Establish a minimum value as the operating limit for water flow rate (or line pressure) and pressure drop either during the performance test required in 40 CFR 63.11646(a), according to the manufacturer's specifications, or as approved by the BAPC. If the Permittee chooses to establish the operating limit based on the results of the performance test, the new operating limit must be established based on either the lowest value during any test run or 10 percent less than the average value measured during the test. For wet scrubbers on an autoclave, establish the pressure drop range according to manufacturer's specifications. The Permittee must monitor the water flow rate and pressure drop once per shift and take corrective action within 24 hours if any daily average is less than the operating limit. If the parameters are not in range within 72 hours, the owner or operator must report the deviation to the BAPC and perform a compliance test for the process unit(s) controlled with the wet scrubber that has the parameter exceedance within 40 days to determine if the affected source is in compliance with the MACT limit. For the other process units included in the affected source, the owner or operator can use the results of the previous compliance test to determine the emissions for those process units to be used in the calculations of the emissions for the affected source. (40 CFR 63.11647(h))

i. The Permittee may conduct additional compliance tests according to the procedures in 40 CFR 63.11646 and re-establish the operating limits required in paragraphs 40 CFR 63.11647 (a) through (c) and (f) through (h) at any time. The Permittee must submit a request to the BAPC for approval to re-establish the operating limits. In the request, the Permittee must demonstrate that the proposed change to the operating limit detects changes in levels of mercury emission control. An approved change to the operating limit under this paragraph only applies until a new operating limit is established during the next annual compliance test. (40 CFR 63.11647(i))

6. Notification, Reporting, Recordkeeping (40 CFR 63.11648)

a. The Permittee must submit the Initial Notification required by 40 CFR 63.9(b)(2) no later than 120 calendar days after the date of publication of the final rule in the Federal Register or within 120 days after the source becomes subject to the standard. The Initial Notification must include the information specified in 40 CFR 63.9(b)(2)(i) through (b)(2)(iv). (40 CFR 63.11648(a))

b. The Permittee must submit an initial Notification of Compliance Status as required by 40 CFR 63.9(h). (40 CFR 63.11648(b))




373


(40 CFR 63.11640 et. seq.) – Ore Pre-Treatment Processes Affected Source (continued) 6. Notification, Reporting, Recordkeeping (40 CFR 63.11648) (continued)

c. If a deviation occurs during a semiannual reporting period, The Permittee must submit a deviation report to the BAPC according to the requirements in paragraphs (c)(1) and (2) of 40 CFR 63.11648. (40 CFR 63.11648(c))

d. If the Permittee has a malfunction during the reporting period, the compliance report required in 40 CFR 63.11648(b) must include the number, duration, and a brief description for each type of malfunction which occurred during the reporting period and which caused or may have caused any applicable emission limitation to be exceeded. The report must also include a description of actions taken by an owner operator during a malfunction of an affected source to minimize emissions in accordance with A.4.b, including actions taken to correct a malfunction. (40 CFR 63.11648(d))

e. The Permittee must keep the records specified in paragraphs (e)(1) through (e)(3) of 40 CFR 63.11648. The form and maintenance of records must be consistent with the requirements in 40 CFR 63.10(b)(1) of the General Provisions. (40 CFR 63.11648(e))

f. Records must in a form suitable and readily available for expeditious review, according to 40 CFR 63.10(b)(1). As specified in 40 CFR 63.10(b)(1), the Permittee must keep each record for 5 years following the date of each recorded action according to 40 CFR 63.10(b)(1). The Permittee must keep each record onsite for at least 2 years after the date of each recorded action according to 40 CFR 63.10(b)(1). The Permittee may keep the records offsite for the remaining 3 years. (40 CFR 63.11648(f))

g. After December 31, 2011, within 60 days after the date of completing each performance evaluation conducted to demonstrate compliance with 40 CFR Part 60, Subpart EEEEEEE, the Permittee of the affected facility must submit the test data to EPA by entering the data electronically into EPA’s WebFIRE data base through EPA’s Central Data Exchange. The Permittee of an affected facility shall enter the test data into EPA’s data base using the Electronic Reporting Tool or other compatible electronic spreadsheet. Only performance evaluation data collected using methods compatible with ERT are subject to this requirement to be submitted electronically into EPA’s WebFIRE database. (40 CFR 63.11648(g))

7. General Provisions (40 CFR 63.11650) Table 1 of Subpart EEEEEEE shows which parts of the General Provisions in 40 CFR63.1 through 63.16 apply.




374

Section VII. Mercury Emission Standards (continued) B. NESHAP for the Gold Mine Ore Processing and Production Area Source Category – 40 CFR Part 63, Subpart EEEEEEE

(40 CFR 63.11640 et. seq.) – Carbon Processes with Retorts

1. Affected Source – Carbon Processes with Retorts (40 CFR 63.11640) The following process units listed in Table VII-2 define the existing affected source for Carbon Processes with Retorts:

Table VII - 2

40 CFR Part 63, Subpart EEEEEEE Affected Source - Carbon Processes with Retorts

Process Unit Description Final Emission Point

System 61A – Carbon Reactivation Kiln #2: Kiln Throughput and PB Tanks • S2.004.1 Carbon Kiln #2 Drum • S2.004.3 Pregnant Solution Tank A-Side • S2.004.4 Pregnant Solution Tank B - Side

1.65-ton carbon bed (CA-002)

System 67 – Mercury Retorts • S2.009 Mercury Retort #1 • S2.010 Mercury Retort #2 • S2.011 Mercury Retort #3 • S2.341 Mercury Retort #4

Carbon Filter

System 68 – Furnaces • S2.013 West Melting Furnace • S2.014 East Melting Furnace • S2.344 Electrowinning Cells

Carbon Filter

2. Compliance Dates (40 CFR 63.11641)

Permittee must comply with the provisions of Subpart EEEEEEE no later than February 17, 2014. (40 CFR 63.11645(c)) 3. Mercury Emission Standards (40 CFR 63.11645)

Permittee shall not discharge or cause to be discharged from the assemblage of process units listed in Table VII-2 of this section, combined mercury emissions in excess of the following limit for the existing affected source: a. For existing carbon processes with mercury retorts, the Permittee must emit no more than 2.2 pounds of mercury

per ton of concentrate processed. (40 CFR 63.11645) 4. Compliance Requirements (40 CFR 63.11646)

a. Permittee must conduct a mercury compliance emission test within 180 days of the compliance date for all process units at new and existing affected sources, according to those applicable requirements in 40 CFR 63.11646(a)(1) through (13) of 40 CFR Part 63, Subpart EEEEEEE. This compliance testing must be repeated annually thereafter, with no two consecutive annual compliance tests occurring less than 3 months apart or more than 15 months apart (40 CFR 63.11646(a)).

b. At all times, Permittee must operate and maintain any affected source, including associated air pollution control equipment and monitoring equipment, in a manner consistent with safety and good air pollution control practices for minimizing emissions. Determination of whether such operation and maintenance procedures are being used will be based on information available to the Administrator which may include, but is not limited to, monitoring results, review of operation and maintenance procedures, review of operation and maintenance records, and inspection of the source (40 CFR 63.11646(b)).




375


(40 CFR 63.11640 et. seq.) – Carbon Processes with Retorts (continued)

5. Monitoring Requirements (40 CFR 63.11647) a. The Permittee must monitor each process unit at each new and existing affected source that uses a carbon adsorber to

control mercury emissions using the procedures in paragraphs 40 CFR 63.11647 (f)(1) or (f)(2). A carbon adsorber may include a fixed carbon bed, carbon filter packs or modules, carbon columns, and other variations. (40 CFR 63.11647(f)) (1) Continuously sample and analyze the exhaust stream from the carbon adsorber for mercury using Method 30B

(40 CFR part 60, appendix A-8) for a duration of at least the minimum sampling time specified in Method 30B and up to one week that includes the period of the annual performance test. (40 CFR 63.11647(f)(1)) (i) Establish an upper operating limit for the process as determined using the mercury concentration

measurements from the sorbent trap (Method 30B) as calculated from Equation (3) of this section.

OLC = Ctrap* (EL/CT) (Equation 3) Where: OLC = mercury concentration operating limit for the carbon adsorber control device on the process as

measured using the sorbent trap, (micrograms per cubic meter); Ctrap = average mercury concentration measured using the sorbent trap during the week that includes

the compliance performance test, (micrograms per cubic meter); EL = emission standard for the affected sources (lb/ton of concentrate); CT = compliance test results for the affected sources (lb/ton of concentrate).

(ii) Sample and analyze the exhaust stream from the carbon adsorber for mercury at least monthly using Method 30B (40 CFR part 60, appendix A-8). When the mercury concentration reaches 75 percent of the operating limit, begin weekly sampling and analysis. When the mercury concentration reaches 90 percent of the operating limit, replace the carbon in the carbon adsorber within 30 days. If mercury concentration exceeds the operating limit, change the carbon in the carbon adsorber within 30 days and report the deviation to the BAPC.

(2) Conduct an initial sampling of the carbon in the carbon bed for mercury 90 days after the replacement of the carbon. A representative sample must be collected from the inlet of the bed and the exit of the bed and analyzed using SW-846 Method 7471B (incorporated by reference—see 40 CFR 63.14). The depth to which the sampler is inserted must be recorded. The design capacity is established by calculating the average carbon loading from the inlet and outlet measurements. Sampling and analysis of the carbon bed for mercury must be performed quarterly thereafter. When the carbon loading reaches 50 percent of the design capacity of the carbon, monthly sampling must be performed until 90 percent of the carbon loading capacity is reached. The carbon must be removed and replaced with fresh carbon no later than 30 days after reaching 90 percent of capacity. For carbon designs where there may be multiple carbon columns or beds, a representative sample may be collected from the first and last column or bed instead of the inlet or outlet. If the carbon loading exceeds the design capacity of the carbon, change the carbon within 30 days and report the deviation to the BAPC. (40 CFR 63.11647(f)(2))




376


(40 CFR 63.11640 et. seq.) – Carbon Processes with Retorts (continued) 5. Monitoring Requirements (40 CFR 63.11647) (continued)

b. The Permittee must monitor gas stream temperature at the inlet to the carbon adsorber for each process unit (i.e., carbon kiln, melt furnace, etc.) equipped with a carbon adsorber. Establish a maximum value for the inlet temperature either during the annual performance test (required in 40 CFR 63.11646(a)), according to the manufacturer's specifications, or as approved by the BAPC. If the Permittee chooses to establish the temperature operating limit during the performance test, establish the temperature operating limit based on either the highest reading during the test or at 10 °F higher than the average temperature measured during the performance test. Monitor the inlet temperature once per shift. If an inlet temperature exceeds the temperature operating limit, the Permittee must take corrective actions to get the temperature back within the parameter operating limit within 48 hours. If the exceedance persists, within 144 hours of the exceedance, the Permittee must sample and analyze the exhaust stream from the carbon adsorber using Method 30B (40 CFR part 60, appendix A-8) and compare to an operating limit (calculated pursuant to 40 CFR 63.11647 (f)(1)(i)) or the Permittee must conduct carbon sampling pursuant to 40 CFR 63.11647 (f)(2). If the concentration measured with Method 30B is below 90 percent of the operating limit or the carbon sampling results are below 90 percent of the carbon loading capacity, the Permittee may set a new temperature operating limit 10 °F above the previous operating limit or at an alternative level approved by the BAPC. If the concentration is above 90 percent of the operating limit or above 90 percent of the carbon loading capacity the Permittee must change the carbon in the bed within 30 days and report the event to the BAPC, and reestablish an appropriate maximum temperature limit based on approval of the permit authority. (40 CFR 63.11647(g))

c. The Permittee may conduct additional compliance tests according to the procedures in 40 CFR 63.11646 and re-establish the operating limits required in paragraph VII.B.5.b of this section at any time. The Permittee must submit a request to the BAPC for approval to re-establish the operating limits. In the request, the Permittee must demonstrate that the proposed change to the operating limit detects changes in levels of mercury emission control. An approved change to the operating limit under this paragraph only applies until a new operating limit is established during the next annual compliance test. (40 CFR 63.11647(i))

6. Notification, Reporting, Recordkeeping (40 CFR 63.11648)

a. The Permittee must submit the Initial Notification required by 40 CFR 63.9(b)(2) no later than 120 calendar days after the date of publication of the final rule in the Federal Register or within 120 days after the source becomes subject to the standard. The Initial Notification must include the information specified in 40 CFR 63.9(b)(2)(i) through (b)(2)(iv). (40 CFR 63.11648(a))

b. The Permittee must submit an initial Notification of Compliance Status as required by 40 CFR 63.9(h). (40 CFR 63.11648(b))

c. If a deviation occurs during a semiannual reporting period, The Permittee must submit a deviation report to the BAPC according to the requirements in paragraphs (c)(1) and (2) of 40 CFR 63.11648. (40 CFR 63.11648(c))

d. If the Permittee has a malfunction during the reporting period, the compliance report required in 40 CFR 63.11648(b) must include the number, duration, and a brief description for each type of malfunction which occurred during the reporting period and which caused or may have caused any applicable emission limitation to be exceeded. The report must also include a description of actions taken by an owner operator during a malfunction of an affected source to minimize emissions in accordance with B.4.b, including actions taken to correct a malfunction. (40 CFR 63.11648(d))

e. The Permittee must keep the records specified in paragraphs (e)(1) through (e)(3) of 40 CFR 63.11648. The form and maintenance of records must be consistent with the requirements in 40 CFR 63.10(b)(1) of the General Provisions. (40 CFR 63.11648(e))




377


(40 CFR 63.11640 et. seq.) – Carbon Processes with Retorts (continued) 6. Notification, Reporting, Recordkeeping (40 CFR 63.11648) (continued)

f. Records must in a form suitable and readily available for expeditious review, according to 40 CFR 63.10(b)(1). As specified in 40 CFR 63.10(b)(1), the Permittee must keep each record for 5 years following the date of each recorded action according to 40 CFR 63.10(b)(1). The Permittee must keep each record onsite for at least 2 years after the date of each recorded action according to 40 CFR 63.10(b)(1). The Permittee may keep the records offsite for the remaining 3 years. (40 CFR 63.11648(f))

g. After December 31, 2011, within 60 days after the date of completing each performance evaluation conducted to demonstrate compliance with 40 CFR Part 60, Subpart EEEEEEE, the Permittee of the affected facility must submit the test data to EPA by entering the data electronically into EPA’s WebFIRE data base through EPA’s Central Data Exchange. The Permittee of an affected facility shall enter the test data into EPA’s data base using the Electronic Reporting Tool or other compatible electronic spreadsheet. Only performance evaluation data collected using methods compatible with ERT are subject to this requirement to be submitted electronically into EPA’s WebFIRE database. (40 CFR 63.11648(g))

7. General Provisions (40 CFR 63.11650) Table 1 of Subpart EEEEEEE shows which parts of the General Provisions in 40 CFR63.1 through 63.16 apply.

****End of Mercury Emission Standards****




378

Section VIII. Emission Caps A. Emission Units S2.028 through S2.031 and PF1.018 through PF1.021

System 63A – Autoclave Silo #1, 250 tons Location UTM (Zone 11, NAD 83) m North m East


System 63B – Autoclave Silo #2 and #3, 500 ton each Location UTM (Zone 11, NAD 83) m North m East

S2.029 Autoclave Silo #2, Loading 4,536,030 554,767 PF1.019 Autoclave Silo #2, Discharge 4,536,028 554,764 S2.030 Autoclave Silo #3, Loading 4,536,020 554,771 PF1.020 Autoclave Silo #3, Discharge 4,536,018 554,768

System 63C – Autoclave Silo #4, 1,000 ton Location UTM (Zone 11, NAD 83) m North m East



Operating Parameters a. The maximum allowable throughput rate for S2.028 through S2.031, combined, shall not exceed 331,667 tons of

lime or soda ash per year, based on a 12-month rolling period. b. The maximum allowable throughput rate for PF1.018 through PF1.021, combined, shall not exceed 331,667 tons of

lime or soda ash per year, based on a 12-month rolling period. 2. NAC 445B.3405 (NAC 445B.316) Part 70 Program


from S2.028 through S2.031, combined, the following pollutants in excess of the following specified limits: (1) NAC 445B.305 Part 70 Program – The discharge of PM (particulate matter) to the atmosphere shall not

exceed more than 0.16 ton per year, based on 12-month rolling period. (2) NAC 445B.305 Part 70 Program – The discharge of PM10 (particulate matter less than or equal to 10 microns

in diameter) to the atmosphere shall not exceed more than 0.056 ton per year, based on 12-month rolling period.

(3) NAC 445B.305 Part 70 Program – The discharge of PM2.5 (particulate matter less than or equal to 2.5 microns in diameter) to the atmosphere shall not exceed more than 0.009 ton per year, based on 12-month rolling period.

b. The Permittee, upon issuance of this operating permit, shall not discharge or cause the discharge into the atmosphere from PF1.018 through PF1.021, combined, the following pollutants in excess of the following specified limits: (1) NAC 445B.305 Part 70 Program – The discharge of PM (particulate matter) to the atmosphere shall not

exceed more than 0.40 ton per year, based on 12-month rolling period. (2) NAC 445B.305 Part 70 Program – The discharge of PM10 (particulate matter less than or equal to 10 microns

in diameter) to the atmosphere shall not exceed more than 0.23 ton per year, based on 12-month rolling period. (3) NAC 445B.305 Part 70 Program – The discharge of PM2.5 (particulate matter less than or equal to 2.5

microns in diameter) to the atmosphere shall not exceed more than 0.04 ton per year, based on 12-month rolling period.




379

Section VIII. Emission Caps (continued) A. Emission Units S2.028 through S2.031 and PF1.018 through PF1.021 (continued)


Monitoring The permittee, upon issuance of this operating permit, shall: a. Record the throughput rate of lime or soda ash for S2.028 through S2.031, combined, on a cumulative monthly

basis, for each 12- month rolling period. b. Record the throughput rate of lime or soda ash for PF1.018 through PF1.021, combined, on a cumulative monthly

basis, for each 12- month rolling period.

****End of Emission Caps****




380

Section IX. Continuous Emissions Monitoring System (CEMS) Conditions A. CEMS Requirements for Emission Unit S2.209.1 and S2.209.2 (NAC 445B.3405, NAC 445B.316) Part 70 Program

1. On or before the date of start-up of S2.209.1 and S2.209.2, each, the permittee shall install, certify, operate, and maintain a NOX continuous emission monitoring system (CEMS) (consisting of a NOX pollutant concentration monitor and flow monitoring system) in the exhaust stack of S2.209.1 and S2.209.2. The CEMS monitoring probe must be installed at an appropriate location in the exhaust stack of S2.209.1 and S2.209.2, to accurately and continuously measure NOX concentration (in ppm), volumetric gas flow (in acfm), and NOX emission rate (in lb/hr) discharged to the atmosphere, in accordance with all the requirements prescribed in NAC 445B.252 to NAC 445B.267; 40 CFR Part 60, Appendix B, Performance Specifications 2 and 6; and 40 CFR Part 60, Appendix F – Quality Assurance Procedures. The permittee shall account for total NOx emissions, both NO and NO2, either by monitoring for both NO and NO2 or by monitoring for NO only and adjusting the emissions data to account for NO2.

2. On or before the date of start-up of S2.209.1 and S2.209.2, each, the permittee shall install, certify, operate, and maintain a SO2 continuous emission monitoring system (CEMS) and a flow monitoring system in the exhaust stack of S2.209.1 and S2.209.2. The CEMS monitoring probe must be installed at an appropriate location in the exhaust stack of S2.209.1 and S2.209.2, to accurately and continuously measure SO2 concentration (in ppm), volumetric gas flow (in acfm), and SO2 mass emissions (in lb/hr) discharged to the atmosphere, in accordance with all the requirements prescribed in NAC 445B.252 to NAC 445B.267; 40 CFR Part 60, Appendix B, Performance Specifications 2 and 6; and 40 CFR Part 60, Appendix F – Quality Assurance Procedures.

3. On or before the date of start-up of S2.209.1 and S2.209.2, each, the permittee shall install, certify, operate, and maintain a CO continuous emission monitoring system (CEMS) in the exhaust stack of S2.209.1 and S2.209.2. The CEMS monitoring probe must be installed at an appropriate location in the exhaust stack of S2.209.1 and S2.209.2, to accurately and continuously measure CO concentration (in ppm), and CO mass emissions (in lb/hr) discharged to the atmosphere, in accordance with all the requirements prescribed in NAC 445B.252 to NAC 445B.267; 40 CFR Part 60, Appendix B, Performance Specifications 4 or 4A; and 40 CFR Part 60, Appendix F – Quality Assurance Procedures.

4. Verification of the operational status of CEMS described in A.1 through A.3 of this section shall, as a minimum, include completion of the manufacturer’s written requirements or recommendations for installation and operation, and complete certification of CEMS in accordance with all the requirements prescribed in NAC 445B.252 to NAC 445B.267; 40 CFR Part 60 Appendix F; and this operating permit.

5. On or before the date of start-up of S2.209.1 and S2.209.2, each, the Permittee shall install, certify, operate, and maintain an automated data acquisition and handling system (DAHS) to accurately and continuously record total NOX emission rates, SO2 emission rates, CO emission rates, and volumetric gas flow rates as described in A.1 through A.3 of this section. The DAHS shall be installed, certified, operated, and maintained in accordance with the manufacturer’s specifications, and all the requirements prescribed in NAC 445B.252 to NAC 445B.267; 40 CFR Part 60 Appendices B and F; and this operating permit. The DAHS shall read and record the entire range of pollutant concentrations and volumetric flow from zero through full-scale and provide a continuous, permanent record of all measurements and required information in an electronic format. The DAHS shall have the capacity to produce a continuous readout of pollutant emission rates or pollutant mass emissions (as applicable) in the appropriate units (e.g., lb/hr, tons/hr) from the pollutant concentration monitors as described in A.1 through A.3 of this section. The DAHS shall also compute and record: Monitor calibration error; and any bias adjustments to the pollutant emission rate data.

6. The Permittee shall ensure that each CEMS described in A.1 through A.3 of this section meets all the initial certification and recertification requirements as identified in NAC 445B.252 to NAC 445B.267; 40 CFR Part 60 Appendix F; and this operating permit.




381

Section IX. Continuous Emissions Monitoring System (CEMS) Conditions (continued)

A. CEMS Requirements for Emission Unit S2.209.1 and S2.209.2 (continued) 7. Quality Assurance and Quality Control (QA/QC) Plan: The Permittee shall develop and submit a Quality Assurance and

Quality Control (QA/QC) Plan for their CEMS in accordance with all the requirements set forth in NAC 445B.252 to NAC 445B.267; 40 CFR Part 60 Appendix F, Procedure 1; and this operating permit. As a minimum, the QC Plan must include written procedures which should describe in detail, complete, step-by-step procedures and operations for each of the following activities: (1) Calibration of CEMS, (2) Calibration Drift (CD) determination and adjustment of CEMS, (3) Preventive maintenance of CEMS (including spare parts inventory), (4) Data recording, calculations, and reporting, (5) Accuracy audit procedures including sampling and analysis methods, and (6) Program of corrective action for malfunctioning CEMS. As described in 40 CFR Part 60 Appendix F, Section 5.2, whenever excessive inaccuracies occur for two consecutive quarters, the facility must revise the current written procedures or modify or replace the CEMS to correct the deficiency causing the excessive inaccuracies. The Director requests that the permittee submit the QA/QC Plan within 180 days of the issuance of this operating permit for their review and approval [NAC 445B.315(h)]. Any revisions to the QA/QC Plan must be notified in writing to the Director before becoming effective.

8. The Permittee shall determine the span value(s) and range(s) for each CEMS in accordance with all the applicable requirements prescribed in NAC 445B.252 to NAC 445B.267; applicable performance specifications in 40 CFR Part 60 Appendix B; 40 CFR Part 60 Appendix F; and this operating permit. Whenever the permittee makes any span and range adjustments, the permittee must perform applicable diagnostic checks as appropriate for their gas concentration monitors and the CEMS as identified in 40 CFR Part 60 Appendices B and F, and this operating permit; and comply with the appropriate reporting requirements. The permittee must provide detail information about the span and range determinations and adjustments including the necessary calculations and the results to the Director [NAC 445B.315(h)]. The permittee shall keep the results of the most recent span and range evaluation on-site, in a format suitable for inspection.

9. The CEMS described in A.1 through A.3 of this section shall be operated and maintained in accordance with the quality assurance and quality control requirements contained in NAC 445B.252 to NAC 445B267; 40 CFR Part 60, Appendix F; and the facility’s QA/QC Plan. The zero and span drift of the CEMS must be checked at least once daily in accordance with the method prescribed by the manufacturer of the systems unless the manufacturer recommends adjustments at shorter intervals, in which case the recommendations must be followed. The zero and span drifts must, as a minimum, be adjusted whenever the 24-hour zero drift or 24-hour calibration drift limits of the applicable performance specifications as identified in 40 CFR Part 60 Appendices B and F are exceeded.

10. Within 90 days of the initial start-up or as specified in 40 CFR Part 60 Appendix F, the Permittee will conduct Relative Accuracy Test Audits (RATA) of NOX, SO2, CO, and flow, for each CEMS described in A.1 through A.3 of this section, to certify the performance of the CEMS. The RATA must be conducted at least once every four calendar quarters from the previously conducted RATA. In the case where the affected facility is off-line (does not operate) in the fourth calendar quarter since the quarter of the previous RATA, the RATA shall be performed in the quarter in which the unit recommences operation (40 CFR Part 60 Appendix F 5.1.4). The RATA must be conducted in accordance with all the applicable Performance Specifications 2, 4 or 4A, and 6, as specified in 40 CFR Part 60 Appendix B; and comply with the notification, protocol approval, and reporting requirements of NAC 445B.252 Testing and Sampling, NAC 445B.259 Monitoring systems: Performance evaluations, and 40 CFR Part 60 Appendix F.

11. The Permittee shall conduct quarterly Cylinder Gas Audit (CGA) for each CEMS described in A.1 through A.3 of this section, in accordance with the applicable requirements prescribed in NAC 445B.252 to NAC 445B.267, and 40 CFR Part 60 Appendix F. The CGA may be conducted in three of four calendar quarters, but in no more than three quarters in succession. Successive quarterly CGAs shall occur no closer than 2 months. The CGA is not required for calendar quarters in which the affected facility does not operate.

12. The permittee shall submit complete CEMS quarterly reports along with audit results and supporting documents in accordance with the applicable requirements prescribed in NAC 445B.252 to NAC 445B.267, and 40 CFR Part 60 Appendix F (Section 7. Reporting Requirements and Figure 1). All quarterly reports must be postmarked by the 30th day following the end of each calendar quarter.




382

Section IX. Continuous Emissions Monitoring System (CEMS) Conditions (continued)

A. CEMS Requirements for Emission Unit S2.209.1 and S2.209.2 (continued)

13. The permittee shall submit all quarterly reports, test protocols and reports, and the QA/QC Plan both in hard and electronic copies [NAC 445B.315(h)] and maintain all CEMS related records in accordance with the applicable requirements prescribed in NAC 445B.265.

14. All the requirements listed above will also be applicable to facility’s backup and/or secondary CEMS monitors.

****End of Continuous Emissions Monitoring System (CEMS) Conditions****




383

Section X. Surface Disturbance Conditions A. Fugitive Dust (NAC 445B.22037)

1. Permittee may not cause or permit the handling, transporting, or storing of any material in a manner which allows or may allow controllable particulate matter to become airborne.

2. Except as otherwise provided in subsection 4, Permittee may not cause or permit the construction, repair, demolition, or use of unpaved or untreated areas without first putting into effect an ongoing program using the best practical methods to prevent particulate matter from becoming airborne. As used in this subsection, “best practical methods” includes, but is not limited to, paving, chemical stabilization, watering, phased construction, and revegetation.

3. Except as provided in subsection 4, Permittee may not disturb or cover 5 acres or more of land or its topsoil until Permittee has obtained an Operating permit for surface area disturbance to clear, excavate, or level the land or to deposit any foreign material to fill or cover the land.

4. The provisions of subsections 2 and 3 do not apply to: a. Agricultural activities occurring on agricultural land; or b. Surface disturbances authorized by a permit issued pursuant to NRS 519A.180 which occur on land which is not less

than 5 acres or more than 20 acres.

****End of Surface Disturbance Conditions*****




384

Section XI. Schedule of Compliance A. None.

****End of Schedules of Compliance****




385

Section XII. Amendments This permit: 1. Is non-transferable. (NAC 445B.287(3)) Part 70 Program 2. Shall be posted conspicuously at or near the stationary source. (NAC 445B.318(5)) (State Only Requirement) 3. Shall expire and be subject to renewal five (5) years from July 17, 2017 . (NAC 445B.315) Part 70 Program 4. A complete application for renewal of an operating permit must be submitted to the director on the form provided by him

with the appropriate fee at least 240 calendar days before the expiration date of this operating permit. (NAC 445B.3443.2) Part 70 Program

5. Any party aggrieved by the Department’s decision to issue this permit may appeal to the State Environmental Commission (SEC) within ten days after the date of notice of the Department’s action. (NRS 445B.340) (State Only Requirement)

THIS PERMIT EXPIRES ON: July 17, 2022

Signature

Issued by:

Jennifer Collier Supervisor, Permitting Branch Bureau of Air Pollution Control

Phone: (775) 687-9551 Date: Date xx, 2018 ts xx/2018


CLASS I NON-PERMIT EQUIPMENT LIST Appended to Barrick Goldstrike Mines Inc. Facility #A0005 Permit #AP1041-0739.04

386

Emission Unit # Emission Unit Description IA1.001 Ancillary Roaster Process – Fuel Oil Storage Tank (16,000 gallons) IA1.002 Fuel Oil Storage Tank (30,000 gallons) IA1.003 Sage and Ball Mills Associated Screen (wet process) IA1.004 Pre-oxidation thickener tanks (wet process) IA1.005 Acidulation Tanks (4 units) IA1.006 Flash Tanks (wet process) IA1.007 Slurry Cooler Surge Tanks (wet process) IA1.008 Slurry Coolers (wet process) IA1.009 Neutralization Tanks (wet process) IA1.010 Carbon-in-Leach Tanks (22 units) IA1.011 Carbon-in-Leach Screens (wet process) IA1.012 Cyanide Destruction System IA1.013 Reclaim Water Tanks (wet process) IA1.015 Carbon Acid Wash Vessels (wet process) IA1.016 Propane Fired Carbon Strip Heaters (7 units) IA1.017 Mill Refinery Central Vacuum System IA1.018 Carbon Reactivation Quench Tanks (wet process) IA1.019 Carbon Screens (wet process) IA1.020 Activated Carbon Tanks (wet process) IA1.021 Laboratory Sample Preparation Equipment (9 units) IA1.022 Propane Storage Tanks (pressurized tank) (6 units) IA1.023 Ammonium Storage Tank IA1.024 VOL Storage Tanks IA1.025a Propane and Natural Gas Fired HVAC for Human Comfort (326 units) IA1.025b Propane Fired Water Boilers (4 units) IA1.025c Portable Kerosene Heaters (4 units) IA1.025d Propane Vaporizer IA1.025e TCM Water Treatment Plant IA1.026 Antifreeze Storage Tanks (6 units) IA1.032 Nitric Acid and Sulfuric Acid Tanks (3 units) IA1.033 Anti Scalent Storage Tanks (9 units) IA1.034 Meikle Mine Air Refrigeration Plant IA1.035 Portable Water Treatment Systems IA1.036 Rotating Biological Contractor Sewer System IA1.037 Underground Mixing Plant IA1.038 Magnesium Sulfate Mix Tanks (2 units) IA1.039 Milk of Lime Storage Tanks (5 units) IA1.040 210’ Clarifiers (water storage pond) IA1.041 Sulfuric Acid Storage Tank IA1.042 Roaster Neutralization Tanks (2 units) IA1.043 Roaster Thickener Tank IA1.044 Units Associated with SO2 Scrubber IA1.046 Polymer Storage and Handling IA1.047 Propane Storage Tank (roasters) IA1.048 Ammonium Hydroxide Solution Tank IA1.049 VOL Storage Tanks (roasters) (5 units) IA1.050 Sodium Cyanide Solution Tanks IA1.051 VIL Storage Tanks (roasters) (5 units) IA1.054 Laboratory Fume Hoods (24 units) IA1.056 Cold Cleaning Parts Cleaners (67 units)


CLASS I NON-PERMIT EQUIPMENT LIST Appended to Barrick Goldstrike Mines Inc. Facility #A0005 Permit #AP1041-0739.04

387

Emission Unit # Emission Unit Description IA1.057 Diesel Contaminated Soil Bio-pad IA1.058 Electrowinning Water Heater IA1.059 Lime Slaker IA1.060 Flocculent Mixing System IA1.061 Backwash Tank IA1.062 Flocculent Hopper Loading IA1.063 RIL and Elution IA Equipment IA1.064 TS Storage Tanks and Associated Units (10 units) IA1.065 Promoter (VIL) Storage Tanks (3 units) IA1.066 Gypsum 2 Reactor Tanks (2 units) IA1.067 Ammonium Nitrate Prill Silo #1 – Loading and Unloading IA1.068 Ammonium Nitrate Prill Silo #2 – Loading and Unloading IA1.069 Ammonium Nitrate Prill Silo #3 – Loading and Unloading IA1.070 Scrubber Water Cooling Tower IA1.071 Scrubber Water Cooling Tower IA1.072 Thiosulfate Cooling Tower IA1.073 Elution Area Cooling Tower IA1.074 Meikle Refrigeration Plant (pre-cooling) IA1.075 Autoclave Phase I Cooling Tower IA1.076 Autoclave Phase II Cooling Tower IA1.077 IA1.078 IA1.079

Autoclave Phase III Cooling Tower Banshee Cooling Tower 1 Banshee Cooling Tower 2

Documents

Facility ID No. A0005 Permit No. AP1041-0739 · S2.205.12 Ball Chip Removal System O. System 16 – Mill #2 Pre-heater and Mill #2 Dry Grinding Process S2.206 Mill #2 Air Pre-heater