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12R1 Tank Inspection_External
SA-PLT-CTLO-SLP-T1311 5/28/2014
SUMMARY
• All UT data exceeds the minimum thickness requirements of API-12R1
• The next internal/external inspection is due by 5/28/2019
• Clean off foundation and remove any compacted soil/dirt in the gravel and address any area where there are spaces under the tank.
• Verify that the secondary containment is adequate per AB-1960
• Repair any damaged insulation and seal around nozzles and appurtenances to prevent CUI. DS14875887 UWWNNJ8205EXP
TANK DATA
Equip Name/Number SA-PLT-CTLO-SLP-T1311
Diameter ft. 30
Height ft. 16
BBL 2014
Current Activity OIL
Operation Status INACTIVE
Insulated YES
Painted YES
Inspection Openings NO
Is there a Floating Roof? NO
INSPECTION REPORT
Inspection Date 5/28/2014
Customer Rep ERIKA BAILEY
Area SAN ARDO
Latitude 35.96145408
Longitude -120.87636243
Report/IDMS Number DS14875887
Work Order # UWWNNJ8205EXP
Inspect Type IN-SERVICE TANK
Inspection Methods UT,VT
Requesting Party CHEVRON
Technician DANIEL RATNER
Equipment Description SWING TANK
Tank Type OTHER
Comments OVERFLOW TANK
Construction Method WELDED
VRU YES
Shell Insulated? YES
Roof Insulated? NO
How CRITICAL is this tank CAN RUN WITHOUT TANK.
Can it be bypassed? CAN BYPASS WITH SOME EFFORT.
Overall Tank Setting Condition FAIR
Containment CONCRETE WALL
Foundation GRAVEL
Gravel Band Intact YES
Comments PARTIALLY BURIED
Impact of Spill MEDIUM
Spill Detection NO
Above Grade NO
Wet Soil / Standing Liquids around Tank NO
Fill Methods AUTOMATIC/INTERMITTENT
Open Drain System NO
Overflow TO ANOTHER TANK
Alarms BEACON
Pumps YES
Level LEVEL SWITCHES
Other Patching YES
Holes in roof NO
Visible emissions from roof NO
Oil stains on/around varec hatches NO
Oil stains or Buildup in roof NO
Roof Sagging YES
Frangible Joint YES
FIELD NOTES
External Inspection
• API-653 was used as a guide for the VT inspection, Tmin calculated per API-12R1
• This is an overflow tank with a fully insulated shell
• There is a gravel foundation with an intact gravel band, though the band is partially buried by debris
• There is a ground wire on the north end
• The foundation under the tank is missing at the clean out
• The tank is shut in at this time
• Repairs to the roof were done recently and fresh paint is present where patches were installed
• Due to obstruction, access to the roof was not possible, only limited visual inspection from the catwalk
• There is a concrete wall for containment
• The level board cable is broken, though there are level switches installed Calculations
• Shell per API-12R1 calculations: 0.062”
• Corrosion Rate: 0.002” per year
• Remaining Life: >25 years Conclusion
• All UT data exceeds the minimum thickness requirements of API-12R1
• The next internal/external inspection is due by 5/28/2019
• Clean off foundation and remove any compacted soil/dirt in the gravel and address any area where there are spaces under the tank.
• Verify that the secondary containment is adequate per AB-1960
• Repair any damaged insulation and seal around nozzles and appurtenances to prevent CUI.
API-21R1 Tmin Calculations Ring 1
Min Yield
Material Stress(S) = 0.8Y 28800 A36 36000
Efficiency (E) 0.7 RT Unknown
Diameter (D) 29.75
Height (H) 16
Spec Gravity (G) 1
Absolute minimum t 0.062
Ring # 1
t=((2.6*D*(H-1)*G)/(S*E))*0.75
t=((2.6*29.75*(16-1)*1.0)/(28800*0.70))*0.75
t=( 1160.25
)*0.75
20160
t= 0.043 < 0.062
t= 0.062
API 653 Checklist
FOUNDATION
Inspect for cavities under foundation and vegetation against bottom of tank. CONCERN
Comments SEVERAL CAVITIES
Check that runoff rainwater from the shell drains away from tank. ACCEPTABLE
Check for settlement around perimeter of tank. ACCEPTABLE
Look for areas where leaching of oil has left rock filler exposed, which indicates hydrocarbon leakage. ACCEPTABLE
Check for settlement into the base which would direct runoff rain water under the tank rather than away from it. ACCEPTABLE
Presence of crushed rock under the steel bottom usually results in severe underside corrosion. Make a note to do additional bottom plate examination (ultrasonic, hammer testing, or turning of coupons) when the tank is out of service. ACCEPTABLE
Check site for drainage away from the tank and associated piping and manifolds. ACCEPTABLE
Check operating condition of the dike drains. ACCEPTABLE
Inspect the area for buildup of trash, vegetation, and other inflammables buildup. CONCERN
Comments DEBRIS ON GROUND
SHELLS
Comments SHELL IS FULLY INSULATED
SHELL APPURTENANCES
Inspect for cracks or signs of leakage on weld joint at nozzles, man ways, and reinforcing plates. ACCEPTABLE
Comments TANK IS SHUT IN AT THIS TIME
Inspect for flange leaks and leaks around bolting. ACCEPTABLE
Inspect sealing of insulation around man ways and nozzles. ACCEPTABLE
Inspect manifold piping, flanges, and valves for leaks. ACCEPTABLE
Check for anchored piping which would be hazardous to the tank shell or bottom connections during earth movement. ACCEPTABLE
Check for adequate thermal pressure relief of piping to the tank. ACCEPTABLE
Inspect condition of board and legibility of board-type auto gauges. ACCEPTABLE
Comments CABLE AND INDICATOR ARE REMOVED
Inspect for proper mounting flange and support. ACCEPTABLE
Inspect for leakage. ACCEPTABLE
Check for leaks at threaded and flanged joints. ACCEPTABLE
ROOFS
Visually inspect for paint failure, holes, pitting, and corrosion product on the roof deck. ACCEPTABLE
Comments ONLY FROM CATWALK
Look for indication of standing water. (Significant sagging of fixed roof deck indicates potential rafter failure. Large standing water areas on a floating roof indicate inadequate drainage design or, if to one side, a non-level roof with possible leaking pontoons.) ACCEPTABLE
ROOF APPURTENANCES
Check the hatch for corrosion and missing bolts. ACCEPTABLE
ACCESSWAYS
Identify and report type (steel pipe, galvanized pipe, square tube, and angle) and size of handrails. ACCEPTABLE
Comments STEEL
Inspect for pitting and holes, paint failure. ACCEPTABLE
Inspect attachment welds. ACCEPTABLE
Identify cold joints and sharp edges. Inspect the handrails and mid-rails. ACCEPTABLE
Inspect safety drop bar (or safety chain) for corrosion, functioning, and length. ACCEPTABLE
Inspect frame for corrosion and paint failure. ACCEPTABLE
Inspect the surface that deck plate or grating rests on, for thinning and holes. ACCEPTABLE
Inspect deck plate for corrosion-caused thinning or holes (not drain holes) and paint failure. ACCEPTABLE
Inspect plate-to-frame weld for rust scale buildup. ACCEPTABLE
Inspect grating for corrosion-caused thinning of bars and failure of welds. ACCEPTABLE
UT Data
TECHNIQUES
Ultrasonic Instrument 38 DL PLUS
Serial Number 13068806
Couplant MFG APPLS RTD
Couplant Material CELLULOSE
Calibration Frequency Minutes 30
Transducer 1 Serial 882979
Transducer 1 Frequency (Mhz.) 5
Transducer 1 Size (In.) .375
Transducer 1 Type DUAL
Transducer 1 Cable Length (Ft) 5
Connect Type LIMO TO MICRODOT
Process Type MANUAL
Contact Type CONTACT
Gain (db.) 66
Waveform 1/2 NEGATIVE
Scanning Speed (In. per second) 6
Scanning Pattern SPOT
Screen Range 2"
Gate Logic EDGE
Presentation Type A SCAN
Calibration Block 5 STEP WEDGE
Material CARBON STEEL
Thickness Range .1-.5
Block Serial 246011
Cal Block 1 .1
Cal Block 2 .2
Cal Block 3 .3
Cal Block 4 .4
Cal Block 5 .5
CALIBRATIONS
LAST LOCATION DATE ACCEPTABLE AMBIENT SURFACE COMMENTS
START OF INSPECTION
5/28/2014 TIME: 12:59 YES 90 85 -
42 5/28/2014 TIME: 13:29 YES 90 85 -
END OF INSPECTION
5/28/2014 TIME: 13:35 YES 90 85 -
READINGS
TML # DATE LOCATION SIZE THICKNESS COMMENTS
1 5/28/2014 TIME: 13:34 S1-A-0 30 0.239 -
2 5/28/2014 TIME: 13:09 S1-A-45 30 0.251 -
3 5/28/2014 TIME: 13:010 S1-A-90 30 0.247 -
4 5/28/2014 TIME: 13:11 S1-A-135 30 0.246 -
5 5/28/2014 TIME: 13:11 S1-A-180 30 0.243 -
6 5/28/2014 TIME: 13:11 S1-A-225 30 0.24 -
7 5/28/2014 TIME: 13:11 S1-A-270 30 0.245 -
8 5/28/2014 TIME: 13:12 S1-A-315 30 0.245 -
9 5/28/2014 TIME: 13:13 S1-B-0 30 0.25 -
10 5/28/2014 TIME: 13:13 S1-B-45 30 0.247 -
11 5/28/2014 TIME: 13:13 S1-B-90 30 0.243 -
12 5/28/2014 TIME: 13:14 S1-B-135 30 0.244 -
13 5/28/2014 TIME: 13:14 S1-B-180 30 0.239 -
14 5/28/2014 TIME: 13:14 S1-B-225 30 0.235 -
15 5/28/2014 TIME: 13:15 S1-B-270 30 0.237 -
16 5/28/2014 TIME: 13:15 S1-B-315 30 0.254 -
17 5/28/2014 TIME: 13:15 S1-C-0 30 0.239 -
18 5/28/2014 TIME: 13:16 S1-C-45 30 0.245 -
19 5/28/2014 TIME: 13:16 S1-C-90 30 0.25 -
20 5/28/2014 TIME: 13:16 S1-C-135 30 0.249 -
21 5/28/2014 TIME: 13:17 S1-C-180 30 0.235 -
22 5/28/2014 TIME: 13:17 S1-C-225 30 0.251 -
23 5/28/2014 TIME: 13:22 S1-C-270 30 0.249 -
24 5/28/2014 TIME: 13:22 S1-C-315 30 0.239 -
25 5/28/2014 TIME: 13:23 S1-N1-0 6 0.241 -
26 5/28/2014 TIME: 13:23 S1-N1-90 6 0.245 -
27 5/28/2014 TIME: 13:24 S1-N1-180 6 0.239 -
28 5/28/2014 TIME: 13:24 S1-N1-270 6 0.242 -
29 5/28/2014 TIME: 13:24 S1-MW-0 34 0.381 -
30 5/28/2014 TIME: 13:25 S1-MW-90 34 0.383 -
31 5/28/2014 TIME: 13:25 S1-MW-180 34 0.383 -
32 5/28/2014 TIME: 13:25 S1-MW-270 34 0.383 -
33 5/28/2014 TIME: 13:26 S1-N7-0 6 0.239 -
34 5/28/2014 TIME: 13:27 S1-N7-90 6 0.237 -
35 5/28/2014 TIME: 13:27 S1-N7-180 6 0.242 -
36 5/28/2014 TIME: 13:27 S1-N7-270 6 0.24 -
37 5/28/2014 TIME: 13:28 S1-N10-0 6 0.242 -
38 5/28/2014 TIME: 13:28 S1-N10-90 6 0.245 -
39 5/28/2014 TIME: 13:28 S1-N10-180 6 0.243 -
40 5/28/2014 TIME: 13:28 S1-N10-270 6 0.243 -
41 5/28/2014 TIME: 13:29 S1-CO-0 24 0.306 -
42 5/28/2014 TIME: 13:29 S1-CO-90 24 0.31 -
API Examiner API Inspector review
Name: Daniel Ratner Jerry P. Van Heel
Date: 6/1/2014 06/13/2014
Cert #: Examiner API Cert# 21573
The gravel band appears to be intact though there is debris partially burying the area
There is empty foundation space under the clean out
There is a stairway leading to the roof area
The scaffolding was not signed off for safety and there was not enough room to get around it for a close
up roof inspection
----------------------------------------------------------------------------------------------- Applus RTD Valley Industrial X-Ray and Inspection Services Inc. UltraPIPE Inspection Data Management -----------------------------------------------------------------------------------------------
Caution TML Logic: TML Corrosion Rate > 15.0 MPY .OR. TML Remaining Life < 1.00 Years. New Survey by: Date:
New Survey Report (Thickness in Inches) Report Date: 05/29/2014 07:17:01 Unit: SA_TANK Unit: SA_TANK Eq/Circ ID: PLT-CTLO-T1311 Eq/Circ ID: PLT-CTLO-T1311 Eq Type: TANK Description: Eq Type: TANK Class: UT,VT Class: RBI: RBI: TML No Location Component
Code Size Material
Code Retire Thick
Last Thick
Ctn. or In. TML
New Thick
Note
1.01 S1-A-0 02-SLPT1311 30.00 0004 0.062 0.239 No 2.01 S1-A-45 02-SLPT1311 30.00 0004 0.062 0.251 No 3.01 S1-A-90 02-SLPT1311 30.00 0004 0.062 0.247 No 4.01 S1-A-135 02-SLPT1311 30.00 0004 0.062 0.246 No 5.01 S1-A-180 02-SLPT1311 30.00 0004 0.062 0.243 No 6.01 S1-A-225 02-SLPT1311 30.00 0004 0.062 0.240 No 7.01 S1-A-270 02-SLPT1311 30.00 0004 0.062 0.245 No 8.01 S1-A-315 02-SLPT1311 30.00 0004 0.062 0.245 No 9.01 S1-B-0 02-SLPT1311 30.00 0004 0.062 0.250 No 10.01 S1-B-45 02-SLPT1311 30.00 0004 0.062 0.247 No 11.01 S1-B-90 02-SLPT1311 30.00 0004 0.062 0.243 No 12.01 S1-B-135 02-SLPT1311 30.00 0004 0.062 0.244 No 13.01 S1-B-180 02-SLPT1311 30.00 0004 0.062 0.239 No 14.01 S1-B-225 02-SLPT1311 30.00 0004 0.062 0.235 No 15.01 S1-B-270 02-SLPT1311 30.00 0004 0.062 0.237 No 16.01 S1-B-315 02-SLPT1311 30.00 0004 0.062 0.254 No 17.01 S1-C-0 02-SLPT1311 30.00 0004 0.062 0.239 No 18.01 S1-C-45 02-SLPT1311 30.00 0004 0.062 0.245 No 19.01 S1-C-90 02-SLPT1311 30.00 0004 0.062 0.250 No 20.01 S1-C-135 02-SLPT1311 30.00 0004 0.062 0.249 No 21.01 S1-C-180 02-SLPT1311 30.00 0004 0.062 0.235 No 22.01 S1-C-225 02-SLPT1311 30.00 0004 0.062 0.251 No 23.01 S1-C-270 02-SLPT1311 30.00 0004 0.062 0.249 No 24.01 S1-C-315 02-SLPT1311 30.00 0004 0.062 0.239 No 25.01 S1-N1-0 07-06S40 6.00 0035 R 0.134 0.241 No 26.01 S1-N1-90 07-06S40 6.00 0035 R 0.134 0.245 No 27.01 S1-N1-180 07-06S40 6.00 0035 R 0.134 0.239 No 28.01 S1-N1-270 07-06S40 6.00 0035 R 0.134 0.242 No 29.01 S1-MW-0 07-34MW 34.00 0004 0.250 0.381 No 30.01 S1-MW-90 07-34MW 34.00 0004 0.250 0.383 No 31.01 S1-MW-180 07-34MW 34.00 0004 0.250 0.383 No 32.01 S1-MW-270 07-34MW 34.00 0004 0.250 0.383 No 33.01 S1-N7-0 07-06S40 6.00 0035 R 0.134 0.239 No 34.01 S1-N7-90 07-06S40 6.00 0035 R 0.134 0.237 No 35.01 S1-N7-180 07-06S40 6.00 0035 R 0.134 0.242 No 36.01 S1-N7-270 07-06S40 6.00 0035 R 0.134 0.240 No 37.01 S1-N10-0 07-06S40 6.00 0035 R 0.134 0.242 No 38.01 S1-N10-90 07-06S40 6.00 0035 R 0.134 0.245 No 39.01 S1-N10-180 07-06S40 6.00 0035 R 0.134 0.243 No 40.01 S1-N10-270 07-06S40 6.00 0035 R 0.134 0.243 No 41.01 S1-CO-0 07-24CO 24.00 0004 0.125 0.306 No 42.01 S1-CO-90 07-24CO 24.00 0004 0.125 0.310 No
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Corrosion Monitoring Eq/Circ ID Analysis Report (Report in Inches, Corrosion Rates in MPY) Report Date: 05/29/2014 07:17:19 Analysis: Straight Line Unit: SA_TANK Flange Rating: 0 lb/in² Eq/Circ ID: PLT-CTLO-T1311 Design Fill Ht: 16.0 ft Eq Type: TANK Description: Design Temp: 0 °F Class: UT,VT RBI: Summary: Group Name: Group description: Insp. Due Date = 05/28/2019 RCR = 2.0 MPY 0 C.A. Status: No Pred. Ret. Date = 06/15/2063 Rem. Life (from last survey 05/28/2014) = 49.0 yrs Total Caution TMLs = 0 TML Number
Location Description
CtnTML
First Survey Thick Nt
First Survey Date
Previous Survey Thick Nt
Previous Survey Date
Last Survey Thick Nt
Last Survey Date
Short Term Rate
Long Term Rate
Best Fit Rate
Max Hist CR
Retirement Thickness
Rep TML CR
TML Retirement Date
TML Inspection Due Date
1.01 S1-A-0 N 0.250 NM 01/01/1994 N/A N/A 0.239 05/28/2014 N/A 0.5 N/A 0.5 0.062 S 2.0 11/28/2102 05/28/2019 2.01 S1-A-45 N 0.250 NM 01/01/1994 N/A N/A 0.251 05/28/2014 N/A 0.0 N/A 0.0 0.062 S 2.0 11/27/2108 05/28/2019 3.01 S1-A-90 N 0.250 NM 01/01/1994 N/A N/A 0.247 05/28/2014 N/A 0.1 N/A 0.1 0.062 S 2.0 11/28/2106 05/28/2019 4.01 S1-A-135 N 0.250 NM 01/01/1994 N/A N/A 0.246 05/28/2014 N/A 0.2 N/A 0.2 0.062 S 2.0 05/29/2106 05/28/2019 5.01 S1-A-180 N 0.250 NM 01/01/1994 N/A N/A 0.243 05/28/2014 N/A 0.3 N/A 0.3 0.062 S 2.0 11/27/2104 05/28/2019 6.01 S1-A-225 N 0.250 NM 01/01/1994 N/A N/A 0.240 05/28/2014 N/A 0.5 N/A 0.5 0.062 S 2.0 05/29/2103 05/28/2019 7.01 S1-A-270 N 0.250 NM 01/01/1994 N/A N/A 0.245 05/28/2014 N/A 0.2 N/A 0.2 0.062 S 2.0 11/27/2105 05/28/2019 8.01 S1-A-315 N 0.250 NM 01/01/1994 N/A N/A 0.245 05/28/2014 N/A 0.2 N/A 0.2 0.062 S 2.0 11/27/2105 05/28/2019 9.01 S1-B-0 N 0.250 NM 01/01/1994 N/A N/A 0.250 05/28/2014 N/A -0.0 N/A 0.0 0.062 S 2.0 05/29/2108 05/28/2019 10.01 S1-B-45 N 0.250 NM 01/01/1994 N/A N/A 0.247 05/28/2014 N/A 0.1 N/A 0.1 0.062 S 2.0 11/28/2106 05/28/2019 11.01 S1-B-90 N 0.250 NM 01/01/1994 N/A N/A 0.243 05/28/2014 N/A 0.3 N/A 0.3 0.062 S 2.0 11/27/2104 05/28/2019 12.01 S1-B-135 N 0.250 NM 01/01/1994 N/A N/A 0.244 05/28/2014 N/A 0.3 N/A 0.3 0.062 S 2.0 05/29/2105 05/28/2019 13.01 S1-B-180 N 0.250 NM 01/01/1994 N/A N/A 0.239 05/28/2014 N/A 0.5 N/A 0.5 0.062 S 2.0 11/28/2102 05/28/2019 14.01 S1-B-225 N 0.250 NM 01/01/1994 N/A N/A 0.235 05/28/2014 N/A 0.7 N/A 0.7 0.062 S 2.0 11/27/2100 05/28/2019 15.01 S1-B-270 N 0.250 NM 01/01/1994 N/A N/A 0.237 05/28/2014 N/A 0.6 N/A 0.6 0.062 S 2.0 11/27/2101 05/28/2019 16.01 S1-B-315 N 0.250 NM 01/01/1994 N/A N/A 0.254 05/28/2014 N/A 0.0 N/A 0.0 0.062 S 2.0 05/29/2110 05/28/2019 17.01 S1-C-0 N 0.250 NM 01/01/1994 N/A N/A 0.239 05/28/2014 N/A 0.5 N/A 0.5 0.062 S 2.0 11/28/2102 05/28/2019 18.01 S1-C-45 N 0.250 NM 01/01/1994 N/A N/A 0.245 05/28/2014 N/A 0.2 N/A 0.2 0.062 S 2.0 11/27/2105 05/28/2019 19.01 S1-C-90 N 0.250 NM 01/01/1994 N/A N/A 0.250 05/28/2014 N/A -0.0 N/A 0.0 0.062 S 2.0 05/29/2108 05/28/2019 20.01 S1-C-135 N 0.250 NM 01/01/1994 N/A N/A 0.249 05/28/2014 N/A 0.0 N/A 0.0 0.062 S 2.0 11/28/2107 05/28/2019 21.01 S1-C-180 N 0.250 NM 01/01/1994 N/A N/A 0.235 05/28/2014 N/A 0.7 N/A 0.7 0.062 S 2.0 11/27/2100 05/28/2019 22.01 S1-C-225 N 0.250 NM 01/01/1994 N/A N/A 0.251 05/28/2014 N/A 0.0 N/A 0.0 0.062 S 2.0 11/27/2108 05/28/2019 23.01 S1-C-270 N 0.250 NM 01/01/1994 N/A N/A 0.249 05/28/2014 N/A 0.0 N/A 0.0 0.062 S 2.0 11/28/2107 05/28/2019 24.01 S1-C-315 N 0.250 NM 01/01/1994 N/A N/A 0.239 05/28/2014 N/A 0.5 N/A 0.5 0.062 S 2.0 11/28/2102 05/28/2019 25.01 S1-N1-0 N 0.280 NM 01/01/1994 N/A N/A 0.241 05/28/2014 N/A 1.9 N/A 1.9 0.134 S 2.0 11/27/2067 05/28/2019 26.01 S1-N1-90 N 0.280 NM 01/01/1994 N/A N/A 0.245 05/28/2014 N/A 1.7 N/A 1.7 0.134 S 2.0 11/26/2069 05/28/2019 27.01 S1-N1-180 N 0.280 NM 01/01/1994 N/A N/A 0.239 05/28/2014 N/A 2.0 N/A 2.0 0.134 S 2.0 11/27/2066 05/28/2019 28.01 S1-N1-270 N 0.280 NM 01/01/1994 N/A N/A 0.242 05/28/2014 N/A 1.9 N/A 1.9 0.134 S 2.0 05/27/2068 05/28/2019 29.01 S1-MW-0 N 0.375 NM 01/01/1994 N/A N/A 0.381 05/28/2014 N/A 0.0 N/A 0.0 0.250 S 2.0 11/27/2079 05/28/2019 30.01 S1-MW-90 N 0.375 NM 01/01/1994 N/A N/A 0.383 05/28/2014 N/A 0.0 N/A 0.0 0.250 S 2.0 11/26/2080 05/28/2019 31.01 S1-MW-180 N 0.375 NM 01/01/1994 N/A N/A 0.383 05/28/2014 N/A 0.0 N/A 0.0 0.250 S 2.0 11/26/2080 05/28/2019 32.01 S1-MW-270 N 0.375 NM 01/01/1994 N/A N/A 0.383 05/28/2014 N/A 0.0 N/A 0.0 0.250 S 2.0 11/26/2080 05/28/2019 33.01 S1-N7-0 N 0.280 NM 01/01/1994 N/A N/A 0.239 05/28/2014 N/A 2.0 N/A 2.0 0.134 S 2.0 11/27/2066 05/28/2019 34.01 S1-N7-90 N * 0.280 NM 01/01/1994 N/A N/A 0.237 05/28/2014 N/A 2.1 N/A 2.1 0.134 S 2.1 06/15/2063 05/28/2019 35.01 S1-N7-180 N 0.280 NM 01/01/1994 N/A N/A 0.242 05/28/2014 N/A 1.9 N/A 1.9 0.134 S 2.0 05/27/2068 05/28/2019 36.01 S1-N7-270 N 0.280 NM 01/01/1994 N/A N/A 0.240 05/28/2014 N/A 2.0 N/A 2.0 0.134 S 2.0 05/28/2067 05/28/2019 37.01 S1-N10-0 N 0.280 NM 01/01/1994 N/A N/A 0.242 05/28/2014 N/A 1.9 N/A 1.9 0.134 S 2.0 05/27/2068 05/28/2019 38.01 S1-N10-90 N 0.280 NM 01/01/1994 N/A N/A 0.245 05/28/2014 N/A 1.7 N/A 1.7 0.134 S 2.0 11/26/2069 05/28/2019 39.01 S1-N10-180 N 0.280 NM 01/01/1994 N/A N/A 0.243 05/28/2014 N/A 1.8 N/A 1.8 0.134 S 2.0 11/26/2068 05/28/2019
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TML Number
Location Description
CtnTML
First Survey Thick Nt
First Survey Date
Previous Survey Thick Nt
Previous Survey Date
Last Survey Thick Nt
Last Survey Date
Short Term Rate
Long Term Rate
Best Fit Rate
Max Hist CR
Retirement Thickness
Rep TML CR
TML Retirement Date
TML Inspection Due Date
40.01 S1-N10-270 N 0.280 NM 01/01/1994 N/A N/A 0.243 05/28/2014 N/A 1.8 N/A 1.8 0.134 S 2.0 11/26/2068 05/28/2019 41.01 S1-CO-0 N 0.375 NM 01/01/1994 N/A N/A 0.306 05/28/2014 N/A 3.4 N/A 3.4 0.125 S 3.4 08/22/2067 05/28/2019 42.01 S1-CO-90 N 0.375 NM 01/01/1994 N/A N/A 0.310 05/28/2014 N/A 3.2 N/A 3.2 0.125 S 3.2 03/20/2072 05/28/2019
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(Report in Inches, Corrosion Rates in MPY) Report Date: 05/29/2014 07:17:20 Analysis: Straight Line Unit: SA_TANK Flange Rating: 0 lb/in² Eq/Circ ID: PLT-CTLO-T1311 Design Fill Ht: 16.0 ft Eq Type: TANK Description: Design Temp: 0 °F Class: UT,VT RBI: -------------------------------------------------------------------------------------------------------------------------------------------------------------- TML Corrosion Rates are each the maximum of: (A) -- Calculated Corrosion Rates x 1.00 : Varies (B) -- Default Corrosion Rate : 2.0 MPY Representative Corrosion Rate is the Maximum of: (A) -- Average Corrosion Rate x 1.10 : Not Used. (B) -- Average Max 25.0% of TMLs, Min of 2 : Not Used. (C) -- Formula Corrosion Rate (Sigma = 1.28) : Not Used. (D) -- Default Corrosion Rate : 2.0 MPY Representative Corrosion Rate = 2.0 MPY TML thickness readings have not been compensated for high Temperatures. TML thickness readings have not been compensated for growths. TML Life calculations are based on the Representative TML Corrosion Rate using Short Term and Long Term Corrosion Rates. Nominal thickness is used for TML corrosion rate calculations with less than 3 surveys. Minimum time between inspections required for corrosion rate calculation is 6 months. TML Inspection Interval is: (A) -- Minimum( TML Life / 2.00, 5.00 years ) Eq/Circ ID Last Survey Date is based on the LAST of the last 0% of TML survey dates (Min 1). Eq/Circ ID Estimated life = 49.0 years from the most recent survey date. (Estimated Life is based on the average of the earliest 0% (Min 1) TML retirement dates.) Predicted Eq/Circ ID Retirement date is 06/15/2063 Recommended Eq/Circ UT/RT Inspection Date is 05/28/2019 UT/RT Inspection Interval is the minimum( Remaining life / 2.0, 5.00 years ). Caution TML Logic: TML Corrosion Rate > 15.0 MPY .OR. TML Remaining Life < 1.00 Years. There are 0 Caution TMLs in this Eq/Circ ID.
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Corrosion Monitoring Fill Height Analysis (Thickness in Inches, Height in feet) Report Date: 05/29/2014 07:17:38 Unit: SA_TANK Flange Rating: N/A Eq/Circ ID: PLT-CTLO-T1311 Design Fill Ht: 16.0 ft Eq Type: TANK Description: Design Temp: 0 °F Class: UT,VT RBI: TML No. Location Ctn
TML Retirement Date
Retirement Thickness
Last Thick
Last Date Fill Height
Minimum Fill Ht
1.01 S1-A-0 N 11/28/2102 0.062 S 0.239 05/28/2014 77.20 2.01 S1-A-45 N 11/27/2108 0.062 S 0.251 05/28/2014 81.10 3.01 S1-A-90 N 11/28/2106 0.062 S 0.247 05/28/2014 79.80 4.01 S1-A-135 N 05/29/2106 0.062 S 0.246 05/28/2014 79.50 5.01 S1-A-180 N 11/27/2104 0.062 S 0.243 05/28/2014 78.50 6.01 S1-A-225 N 05/29/2103 0.062 S 0.240 05/28/2014 77.60 7.01 S1-A-270 N 11/27/2105 0.062 S 0.245 05/28/2014 79.20 8.01 S1-A-315 N 11/27/2105 0.062 S 0.245 05/28/2014 79.20 9.01 S1-B-0 N 05/29/2108 0.062 S 0.250 05/28/2014 80.80 10.01 S1-B-45 N 11/28/2106 0.062 S 0.247 05/28/2014 79.80 11.01 S1-B-90 N 11/27/2104 0.062 S 0.243 05/28/2014 78.50 12.01 S1-B-135 N 05/29/2105 0.062 S 0.244 05/28/2014 78.80 13.01 S1-B-180 N 11/28/2102 0.062 S 0.239 05/28/2014 77.20 14.01 S1-B-225 N 11/27/2100 0.062 S 0.235 05/28/2014 76.00 * 15.01 S1-B-270 N 11/27/2101 0.062 S 0.237 05/28/2014 76.60 16.01 S1-B-315 N 05/29/2110 0.062 S 0.254 05/28/2014 82.00 17.01 S1-C-0 N 11/28/2102 0.062 S 0.239 05/28/2014 77.20 18.01 S1-C-45 N 11/27/2105 0.062 S 0.245 05/28/2014 79.20 19.01 S1-C-90 N 05/29/2108 0.062 S 0.250 05/28/2014 80.80 20.01 S1-C-135 N 11/28/2107 0.062 S 0.249 05/28/2014 80.40 21.01 S1-C-180 N 11/27/2100 0.062 S 0.235 05/28/2014 76.00 * 22.01 S1-C-225 N 11/27/2108 0.062 S 0.251 05/28/2014 81.10 23.01 S1-C-270 N 11/28/2107 0.062 S 0.249 05/28/2014 80.40 24.01 S1-C-315 N 11/28/2102 0.062 S 0.239 05/28/2014 77.20 25.01 S1-N1-0 N 11/27/2067 0.134 S 0.241 05/28/2014 N/A 26.01 S1-N1-90 N 11/26/2069 0.134 S 0.245 05/28/2014 N/A 27.01 S1-N1-180 N 11/27/2066 0.134 S 0.239 05/28/2014 N/A 28.01 S1-N1-270 N 05/27/2068 0.134 S 0.242 05/28/2014 N/A 29.01 S1-MW-0 N 11/27/2079 0.250 S 0.381 05/28/2014 N/A 30.01 S1-MW-90 N 11/26/2080 0.250 S 0.383 05/28/2014 N/A 31.01 S1-MW-180 N 11/26/2080 0.250 S 0.383 05/28/2014 N/A 32.01 S1-MW-270 N 11/26/2080 0.250 S 0.383 05/28/2014 N/A 33.01 S1-N7-0 N 11/27/2066 0.134 S 0.239 05/28/2014 N/A 34.01 S1-N7-90 N 06/15/2063 0.134 S 0.237 05/28/2014 N/A 35.01 S1-N7-180 N 05/27/2068 0.134 S 0.242 05/28/2014 N/A 36.01 S1-N7-270 N 05/28/2067 0.134 S 0.240 05/28/2014 N/A 37.01 S1-N10-0 N 05/27/2068 0.134 S 0.242 05/28/2014 N/A 38.01 S1-N10-90 N 11/26/2069 0.134 S 0.245 05/28/2014 N/A 39.01 S1-N10-180 N 11/26/2068 0.134 S 0.243 05/28/2014 N/A 40.01 S1-N10-270 N 11/26/2068 0.134 S 0.243 05/28/2014 N/A 41.01 S1-CO-0 N 08/22/2067 0.125 S 0.306 05/28/2014 N/A 42.01 S1-CO-90 N 03/20/2072 0.125 S 0.310 05/28/2014 N/A
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(Thickness in Inches, Height in feet) Report Date: 05/29/2014 07:17:39 Unit: SA_TANK Flange Rating: N/A Eq/Circ ID: PLT-CTLO-T1311 Design Fill Ht: 16.0 ft Eq Type: TANK Description: Design Temp: 0 °F Class: UT,VT RBI: -------------------------------------------------------------------------------------------------- Report Summary: Eq/Circ ID Minimum Fill Height: 76 ft at TML number 14.01
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Predicted Corroded Thickness and Fill Height Analysis Report Report Date: 05/29/2014 07:17:30 (Thickness in Inches, Height in feet) Analysis: Straight Line Unit: SA_TANK Eq/Circ ID: PLT-CTLO-T1311 Design Fill Ht: 16.0 ft Eq Type: TANK Description: Design Temp: 0 °F Class: UT,VT RBI: TML Number
Location Description
CtnTML
Last Survey Thick NT
Last Survey Date
Corr. Rate
Predicted Date
Pred. Thick
Pred. Fill Ht
Min. Fill Ht
1.01 S1-A-0 N 0.239 05/28/2014 2.0 05/28/2019 0.229 73.10 2.01 S1-A-45 N 0.251 05/28/2014 2.0 05/28/2019 0.241 76.90 3.01 S1-A-90 N 0.247 05/28/2014 2.0 05/28/2019 0.237 75.60 4.01 S1-A-135 N 0.246 05/28/2014 2.0 05/28/2019 0.236 75.30 5.01 S1-A-180 N 0.243 05/28/2014 2.0 05/28/2019 0.233 74.30 6.01 S1-A-225 N 0.240 05/28/2014 2.0 05/28/2019 0.230 73.40 7.01 S1-A-270 N 0.245 05/28/2014 2.0 05/28/2019 0.235 75.00 8.01 S1-A-315 N 0.245 05/28/2014 2.0 05/28/2019 0.235 75.00 9.01 S1-B-0 N 0.250 05/28/2014 2.0 05/28/2019 0.240 76.60 10.01 S1-B-45 N 0.247 05/28/2014 2.0 05/28/2019 0.237 75.60 11.01 S1-B-90 N 0.243 05/28/2014 2.0 05/28/2019 0.233 74.30 12.01 S1-B-135 N 0.244 05/28/2014 2.0 05/28/2019 0.234 74.60 13.01 S1-B-180 N 0.239 05/28/2014 2.0 05/28/2019 0.229 73.10 14.01 S1-B-225 N 0.235 05/28/2014 2.0 05/28/2019 0.225 71.80 * 15.01 S1-B-270 N 0.237 05/28/2014 2.0 05/28/2019 0.227 72.40 16.01 S1-B-315 N 0.254 05/28/2014 2.0 05/28/2019 0.244 77.80 17.01 S1-C-0 N 0.239 05/28/2014 2.0 05/28/2019 0.229 73.10 18.01 S1-C-45 N 0.245 05/28/2014 2.0 05/28/2019 0.235 75.00 19.01 S1-C-90 N 0.250 05/28/2014 2.0 05/28/2019 0.240 76.60 20.01 S1-C-135 N 0.249 05/28/2014 2.0 05/28/2019 0.239 76.20 21.01 S1-C-180 N 0.235 05/28/2014 2.0 05/28/2019 0.225 71.80 * 22.01 S1-C-225 N 0.251 05/28/2014 2.0 05/28/2019 0.241 76.90 23.01 S1-C-270 N 0.249 05/28/2014 2.0 05/28/2019 0.239 76.20 24.01 S1-C-315 N 0.239 05/28/2014 2.0 05/28/2019 0.229 73.10 25.01 S1-N1-0 N 0.241 05/28/2014 2.0 05/28/2019 0.231 N/A 26.01 S1-N1-90 N 0.245 05/28/2014 2.0 05/28/2019 0.235 N/A 27.01 S1-N1-180 N 0.239 05/28/2014 2.0 05/28/2019 0.229 N/A 28.01 S1-N1-270 N 0.242 05/28/2014 2.0 05/28/2019 0.232 N/A 29.01 S1-MW-0 N 0.381 05/28/2014 2.0 05/28/2019 0.371 N/A 30.01 S1-MW-90 N 0.383 05/28/2014 2.0 05/28/2019 0.373 N/A 31.01 S1-MW-180 N 0.383 05/28/2014 2.0 05/28/2019 0.373 N/A 32.01 S1-MW-270 N 0.383 05/28/2014 2.0 05/28/2019 0.373 N/A 33.01 S1-N7-0 N 0.239 05/28/2014 2.0 05/28/2019 0.229 N/A 34.01 S1-N7-90 N * 0.237 05/28/2014 2.1 05/28/2019 0.227 N/A 35.01 S1-N7-180 N 0.242 05/28/2014 2.0 05/28/2019 0.232 N/A 36.01 S1-N7-270 N 0.240 05/28/2014 2.0 05/28/2019 0.230 N/A 37.01 S1-N10-0 N 0.242 05/28/2014 2.0 05/28/2019 0.232 N/A 38.01 S1-N10-90 N 0.245 05/28/2014 2.0 05/28/2019 0.235 N/A 39.01 S1-N10-180 N 0.243 05/28/2014 2.0 05/28/2019 0.233 N/A 40.01 S1-N10-270 N 0.243 05/28/2014 2.0 05/28/2019 0.233 N/A 41.01 S1-CO-0 N 0.306 05/28/2014 3.4 05/28/2019 0.289 N/A 42.01 S1-CO-90 N 0.310 05/28/2014 3.2 05/28/2019 0.294 N/A
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Corrosion Monitoring Eq/Circ ID Analysis Report Report Date: 05/29/2014 07:17:31 (Report in Inches, Corrosion Rates in MPY) Analysis: Straight Line Unit: SA_TANK Flange Rating: 0 lb/in² Eq/Circ ID: PLT-CTLO-T1311 Design Fill Ht: 16.0 ft Eq Type: TANK Description: Design Temp: 0 °F Class: UT,VT RBI: ------------------------------------------------------------------------------------------------------------ TML Corrosion Rates are each the maximum of: (A) -- Calculated Corrosion Rates x 1.00 : Varies (B) -- Default Corrosion Rate : 2.0 MPY Representative Corrosion Rate is the Maximum of: (A) -- Average Corrosion Rate x 1.10 : Not Used. (B) -- Average Max 25.0% of TMLs, Min of 2 : Not Used. (C) -- Formula Corrosion Rate (Sigma = 1.28) : Not Used. (D) -- Default Corrosion Rate : 2.0 MPY Representative Corrosion Rate = 2.0 MPY TML thickness readings have not been compensated for high Temperatures. TML thickness readings have not been compensated for growths. TML Life calculations are based on the Representative TML Corrosion Rate using Short Term and Long Term Corrosion Rates. Nominal thickness is used for TML corrosion rate calculations with less than 3 surveys. Minimum time between inspections required for corrosion rate calculation is 6 months. TML Inspection Interval is: (A) -- Minimum( TML Life / 2.00, 5.00 years ) Eq/Circ ID Last Survey Date is based on the LAST of the last 0% of TML survey dates (Min 1). Eq/Circ ID Estimated life = 49.0 years from the most recent survey date. (Estimated Life based on the ave of the earliest 0% (Min 1) TML retirement dates.) Predicted Eq/Circ ID Retirement date is 06/15/2063 Recommended Eq/Circ UT/RT Inspection Date is 05/28/2019 UT/RT Inspection Interval is the minimum( Remaining life / 2.0, 5.00 years ). Caution TML Logic: TML Corrosion Rate > 15.0 MPY .OR. TML Remaining Life < 1.00 Years. There are 0 Caution TMLs in this Eq/Circ ID.
--------------------------------------------------------------------------T-Min Calculation Report - Eq/Circ ID: PLT-CTLO-T1311 TML #: 1.01-------------------------------------------------------------------------- Unit : SA_TANK Design: API653 Component Code: 02-SLPT1311Material Code: 0004 Design Temp: 0.0 °FMSpec: A 36 GR: Notes: ASTM-------------------------------------------------------------------------- T-Min has been calculated using the variables listed below. t = Pressure design wall thickness, in S = Min(0.80*MYS, 0.429*MTS) = (24882 lb/in²) E = Quality Factor, long weld joint factor (1.00) D = Outside Diameter (30.00 ft) H = Maximum Liquid Height (16.00 ft) G = Specific Gravity (1.000)
Welded Shell - 1st and 2nd Course
2.6*D*(H-1)*G 2.6*30.00*(16.00 - 1)*1.000 t = ------------- = ----------------------------- = 0.047 in S * E 24882 * 1.00
Due to Structural Requirements (Component Code Table) T-Min = 0.062 in
--------------------------------------------------------------------------T-Min Calculation Report - Eq/Circ ID: PLT-CTLO-T1311 TML #: 25.01-------------------------------------------------------------------------- Unit : SA_TANK Design: API653 Component Code: 07-06S40Material Code: 0035 R Design Temp: 0.0 °FMSpec: A 106 B GR: Notes: ASTM-------------------------------------------------------------------------- T-Min has been calculated using the variables listed below. t = Pressure design wall thickness, in
6" Nozzle t = 0
Due to Structural Requirements (Component Code Table) T-Min = 0.134 in
--------------------------------------------------------------------------T-Min Calculation Report - Eq/Circ ID: PLT-CTLO-T1311 TML #: 29.01-------------------------------------------------------------------------- Unit : SA_TANK Design: API653 Component Code: 07-34MWMaterial Code: 0004 Design Temp: 0.0 °FMSpec: A 36 GR: Notes: ASTM-------------------------------------------------------------------------- T-Min has been calculated using the variables listed below. t = Pressure design wall thickness, in
(34" Manway) Nozzle t = 0
Due to Structural Requirements (Component Code Table) T-Min = 0.250 in
--------------------------------------------------------------------------T-Min Calculation Report - Eq/Circ ID: PLT-CTLO-T1311 TML #: 41.01-------------------------------------------------------------------------- Unit : SA_TANK Design: API653 Component Code: 07-24COMaterial Code: 0004 Design Temp: 0.0 °FMSpec: A 36 GR: Notes: ASTM-------------------------------------------------------------------------- T-Min has been calculated using the variables listed below. t = Pressure design wall thickness, in
(24" Clean-Out) Nozzle t = 0
Due to Structural Requirements (Component Code Table) T-Min = 0.125 in