Appendix 11 Mine Site: Management and Monitoring Plans Outlines

NORTHMET PROJECT MANAGEMENT AND MONITORING PLANS MINE SITE AIR QUALITY MANAGEMENT AND MONITORING PLAN

AUGUST 2016 DRAFT

TABLE OF CONTENTS

1.0 INTRODUCTION

2.0 BACKGROUND 2.1 Permits

3.0 DESCRIPTION OF SOURCES AND MITIGATION MEASURES 3.1 Point Sources 3.2 Fugitive Sources 3.3 Mitigation Measures

4.0 AIR QUALITY MANAGEMENT 4.1 Management Objectives 4.2 Point Source Controls

4.2.1 Lime Silo 4.3 Fugitive Source Controls

4.3.1 Fugitive Emissions Control Plan 5.0 MONITORING

5.1 Point Source Tons Processed or Operating Hours 5.2 Boiler/Heater/Stationary Engine Fuel Usage 5.3 Stack Tests 5.4 Compliance Assurance Monitoring/Periodic Monitoring System 5.5 Material Handling Tons and Rates for Fugitive Emissions 5.6 Mobile Equipment Vehicle Miles Traveled 5.7 Ambient Air Monitoring 5.8 Other Monitoring 5.9 Mobile Source Monitoring (Tailpipe Emissions)

6.0 REPORTING AND ADAPTIVE MANAGEMENT 6.1 Air Operating Permit Reporting 6.2 Adaptive Management 6.3 Contingency Mitigation

LIST OF ATTACHMENTS

ATTACHMENT A AIR OPERATING PERMIT

ATTACHMENT B MINE SITE FUGITIVE EMISSIONS CONTROL (FEC) PLAN

ATTACHMENT C AMBIENT AIR BOUNDARY CONTROL PLAN

ATTACHMENT D SPECIAL PURPOSE MONITORING PLAN

ATTACHMENT E QUALITY ASSURANCE PROJECT PLAN

LIST OF STANDARD OPERATING PROCEDURES (SOP)

MAQ SOP 1 STACK TESTING SOP

MAQ SOP 2 AIR QUALITY MONITORING SOP

MAQ SOP 3 MOBILE EQUIPMENT VMT TRACKING SOP

MAQ SOP 4 AIR OPERATING PERMIT REPORTING SOP

NORTHMET PROJECT MANAGEMENT AND MONITORING PLANS MINE SITE WATER MANAGEMENT AND MONITORING PLAN

AUGUST 2016 DRAFT

TABLE OF CONTENTS

1.0 INTRODUCTION

2.0 BACKGROUND 2.1 Permit Overview

3.0 TYPES OF WATER TO MANAGE

4.0 WATER BALANCE

5.0 WATER MANAGEMENT 5.1 Management Objectives 5.2 Mine Water

5.2.1 Construction Mine Water 5.2.2 Pit Dewatering 5.2.3 Stockpile Drainage

5.2.3.1 Temporary Stockpile Drainage 5.2.3.2 Category 1 Stockpile Drainage

5.2.4 OSLA Drainage 5.2.5 Haul Road Drainage 5.2.6 Rail Transfer Hopper Drainage 5.2.7 Waste Water Treatment Facility 5.2.8 Central Pumping Station and Treated Water Pipeline

5.3 Stormwater 5.3.1 Construction Stormwater Management 5.3.2 Industrial Stormwater Management 5.3.3 Stormwater Infrastructure

5.3.3.1 Exclusion Ditches 5.3.3.2 Interior Ditches 5.3.3.3 Sedimentation Ponds and Outlets

5.4 Sewage

6.0 MONITORING 6.1 Mine Water

6.1.1 Construction Mine Water 6.1.2 Pit Dewatering 6.1.3 Stockpile Drainage 6.1.4 OSLA Drainage 6.1.5 Haul Road Drainage 6.1.6 Rail Transfer Hopper Drainage

6.2 Sewage 6.3 Stormwater 6.4 Groundwater 6.5 Wetlands 6.6 Surface Water 6.7 Spills

7.0 REPORTING AND ADAPTIVE MANAGEMENT 7.1 NPDES/SDS Permit Reporting

7.1.1 Discharge Monitoring Reporting 7.1.2 Annual Report

7.2 Water Appropriations Permit Reporting 7.2.1 Monthly/Quarterly Reporting

NorthMet Project Management and Monitoring Plans Mine Site Water Management and Monitoring Plan Draft Table of Contents Page: 2

7.2.2 Annual Report 7.3 Comparison to Water Model

7.3.1 Comparison of Monitoring Results to Model Estimates 7.3.2 Model Refinements 7.3.3 Reporting

7.4 Adaptive Management 7.5 Contingency Mitigation

LIST OF ATTACHMENTS

ATTACHMENT A NPDES/SDS PERMIT

ATTACHMENT B WATER APPROPRIATIONS PERMITS

ATTACHMENT C MINE SITE WATER BALANCE

ATTACHMENT D QUALITY ASSURANCE PROJECT PLAN

LIST OF STANDARD OPERATING PROCEDURES (SOP)

MWM SOP 1 MINE WATER SUMP AND POND OPERATIONS SOP

MWM SOP 2 CONSTRUCTION MINE WATER AND STORMWATER HANDLING SOP

MWM SOP 3 WATER MONITORING AND SAMPLING SOP

MWM SOP 4 SPILL HANDLING AND REPORTING SOP

MWM SOP 5 WATER PERMIT-REQUIRED REPORTING SOP

MWM SOP 6 COMPARISON TO WATER MODEL SOP

NORTHMET PROJECT MANAGEMENT AND MONITORING PLANS MINE SITE OVERBURDEN MANAGEMENT AND MONITORING PLAN

AUGUST 2016 DRAFT

TABLE OF CONTENTS

1.0 INTRODUCTION

2.0 BACKGROUND 2.1 Permit Overview

3.0 OVERBURDEN CHARACTERISTICS AND CLASSIFICATION 3.1 Geochemical Characteristics 3.2 Geotechnical Characteristics

4.0 OVERBURDEN EXTRACTION 4.1 Pit Pre-stripping 4.2 Construction Areas 4.3 Borrow Areas

5.0 OVERBURDEN MANAGEMENT 5.1 Management Objectives 5.2 OSLA

5.2.1 Stockpiling 5.2.2 Water Management

5.3 Saturated Mineral Overburden 5.3.1 Construction Uses 5.3.2 Storage and Disposal

5.4 Unsaturated Mineral Overburden 5.4.1 Construction Uses 5.4.2 Storage and Disposal

5.5 Peat 5.5.1 Construction Uses 5.5.2 Storage and Disposal

5.6 Excavation and Segregation

6.0 MONITORING 6.1 Material Characteristics Verification 6.2 Placement Verification 6.3 Stabilization Monitoring 6.4 Survey Monitoring 6.5 Drainage Monitoring

7.0 REPORTING AND ADAPTIVE MANAGEMENT 7.1 Annual Reporting

7.1.1 Annual Comparison to Plan 7.2 Adaptive Management 7.3 Contingency Mitigation

LIST OF ATTACHMENTS

ATTACHMENT A QUALITY ASSURANCE PROJECT PLAN

NorthMet Project Management and Monitoring Plans Mine Site Overburden Management and Monitoring Plan Draft Table of Contents Page: 2

LIST OF STANDARD OPERATING PROCEDURES (SOP)

OVBN SOP 1 OSLA OPERATIONS SOP

OVBN SOP 2 MATERIAL CHARACTERISTICS TESTING SOP

OVBN SOP 3 OVERBURDEN EXCAVATION AND SEGREGATION SOP

OVBN SOP 4 OVERBURDEN CONSTRUCTION USAGE SOP

OVBN SOP 5 MINE PIT OVERBURDEN SLOPE STABILITY MONITORING SOP

OVBN SOP 6 OSLA SURVEY AND STABILITY MONITORING SOP

OVBN SOP 7 OSLA DRAINAGE MONITORING SOP

NORTHMET PROJECT MANAGEMENT AND MONITORING PLANS TRANSPORTATION AND UTILITY CORRIDORS MANAGEMENT AND MONITORING PLAN

AUGUST 2016 DRAFT

TABLE OF CONTENTS

1.0 INTRODUCTION

2.0 BACKGROUND 2.1 Permit Overview

3.0 TYPES OF MEDIA TO MANAGE

4.0 TUC MANAGEMENT 4.1 Management Objectives 4.2 Ore Transport 4.3 Treated Water Pipeline 4.4 Dust Suppression 4.5 Wildlife Protection 4.6 Water Management

5.0 MONITORING AND INSPECTION 5.1 Ore Spillage 5.2 Treated Water Pipeline 5.3 Dust 5.4 Stormwater 5.5 Surface Water

6.0 REPORTING AND ADAPTIVE MANAGEMENT 6.1 NPDES/SDS Permit Reporting

6.1.1 Discharge Monitoring Reporting 6.1.2 Annual Report

6.2 Annual Review and Reporting 6.2.1 Ore Transport Annual Review 6.2.2 Annual Report

6.3 Adaptive Management 6.4 Contingency Mitigation

LIST OF ATTACHMENTS

ATTACHMENT A QUALITY ASSURANCE PROJECT PLAN

LIST OF STANDARD OPERATING PROCEDURES (SOP)

TUC SOP 1 TRANSPORTATION AND UTILITY CORRIDOR OPERATIONS SOP

TUC SOP 2 ORE LOADING, TRANSPORT, AND UNLOADING SOP

TUC SOP 3 RAILROAD TRACK INSPECTION SOP

TUC SOP 4 ORE CAR INSPECTION SOP

TUC SOP 5 WATER MONITORING AND SAMPLING SOP

TUC SOP 6 SPILL HANDLING AND REPORTING SOP

TUC SOP 7 WATER PERMIT-REQUIRED REPORTING SOP

NORTHMET PROJECT MANAGEMENT AND MONITORING PLANS WASTE ROCK AND ORE MANAGEMENT AND MONITORING PLAN

AUGUST 2016 DRAFT

TABLE OF CONTENTS

1.0 INTRODUCTION

2.0 BACKGROUND 2.1 Permit Overview

3.0 WASTE ROCK AND ORE CHARACTERISTICS AND CLASSIFICATION 3.1 Geochemical Characteristics 3.2 Geotechnical Characteristics

4.0 WASTE ROCK AND ORE EXTRACTION 4.1 Mine Pit Operations 4.2 Construction Areas

5.0 WASTE ROCK AND ORE MANAGEMENT 5.1 Management Objectives 5.2 Category 1 Waste Rock

5.2.1 Permanent Stockpile 5.2.2 Groundwater Containment System 5.2.3 Construction Uses 5.2.4 East Pit Backfill

5.3 Category 2/3 and 4 Waste Rock 5.3.1 Temporary Stockpiles 5.3.2 Mine Water Sumps and Ponds 5.3.3 East Pit Backfill

5.4 Ore Surge Pile 5.4.1 Temporary Stockpile 5.4.2 Mine Water Sump and Pond

6.0 MONITORING 6.1 Material Characteristics Verification 6.2 Block Model Refinement 6.3 Placement Verification 6.4 Category 1 Stockpile Confirmation Sampling 6.5 Survey Monitoring 6.6 Stabilization Monitoring 6.7 Drainage Monitoring

7.0 REPORTING AND ADAPTIVE MANAGEMENT 7.1 Annual Reporting

7.1.1 Annual Comparison to Plan 7.2 Adaptive Management 7.3 Contingency Mitigation

NorthMet Project Management and Monitoring Plans Waste Rock and Ore Management and Monitoring Plan Draft Table of Contents Page: 2

LIST OF ATTACHMENTS

ATTACHMENT A QUALITY ASSURANCE PROJECT PLAN

LIST OF STANDARD OPERATING PROCEDURES (SOP)

WRO SOP 1 BLASTING PROCEDURE SOP

WRO SOP 2 BLOCK MODEL REFINEMENT SOP

WRO SOP 3 STOCKPILE OPERATIONS SOP

WRO SOP 4 MATERIAL CHARACTERISTICS TESTING SOP

WRO SOP 5 CATEGORY 1 STOCKPILE CONFIRMATION SAMPLING STABILITY MONITORING SOP

WRO SOP 6 STOCKPILE SURVEY AND STABILITY MONITORING SOP

WRO SOP 7 STOCKPILE DRAINAGE MONITORING SOP