Operations Documents
Operating and Reclamation Plan
- Operations Plan 2023 (PDF, 33 MB)
- Reclamation Plan 2023 (PDF, 28 MB)
- DEQ Approval of Revision 23-001 - Operations Plan (PDF, 309 KB)
5-Year Bond Review
- Projected 2025 Disturbance Area Figure (PDF, 10 MB)
- Projected 2025 Disturbance (PDF, 72 KB)
- Primary Crusher Figure (PDF, 6 MB)
- DEQ Proposed Five-Year Bond Determination (PDF, 222 KB)
- Proposed Five-Year Bond Calculation (XLSX, 2 MB)
- MR Responses_Bond Review Letter (PDF, 6 MB)
- DEQ Final Five-Year Bond Determination (PDF, 185 KB)
Annual Progress Reports
- 2021 Annual Progress Report for Operating Permit (PDF, 35 MB)
- 2022 Annual Progress Report for Operating Permit (PDF, 73 MB)
- 2023 Annual Progress Report for Operating Permit (PDF, 45 MB)
DEQ Hard Rock Mine Bureau Inspections
- Field Inspection Report 06-07-2022 (PDF, 3 MB)
- Field Inspection Report 07-18-2022 (PDF, 1 MB)
- Field Inspection Report 11-22-2022 (PDF, 2 MB)
- Field Inspection Report 06-20-2023 (PDF, 3 MB)
- Field Inspection Report 09-06-2023 (PDF, 2 MB)
- Field Inspection Report 09-28-2023 (PDF, 2 MB)
- Field Inspection Report 11-29-2023 (PDF, 2 MB)
- Field Inspection Report 06-25-2024 (PDF, 7 MB)
- Field Inspection Report 09-04-2024 (PDF, 9 MB)
- Field Inspection Report 09-04-2024 Addendum (PDF, 227 MB)
- Field Inspection Report 11-08-2024 (PDF, 6 MB)
Tailings Storage Facility Documents
Annual Inspection Reports and Corrective Action Plans
- 2020 Annual Inspection Report - Rev 0 (PDF, 27 MB)
- 2020 MR Corrective Action Plan (PDF, 906 KB)
- 2021 Annual Inspection Report - Rev 0 (PDF, 54 MB)
- 2021 MR Corrective Action Plan (PDF, 904 KB)
- 2022 Annual Inspection Report - Rev 0 (PDF, 26 MB)
- 2022 MR Corrective Action Plan (PDF, 3 MB)
- 2023 Annual Inspection Report - Rev 0 (PDF, 38 MB)
- 2023 MR Corrective Action Plan (PDF, 506 KB)
Tailings and Water Management Quarterly Reports
- Q1 2023 Water Monitoring Data Summary (PDF, 3 MB)
- Q2 2023 Water Monitoring Data Summary (PDF, 2 MB)
- Q3 2023 Tailings and Water Monitoring Summary (PDF, 2 MB)
- Q4 2023 Tailings and Water Monitoring Summary (PDF, 3 MB)
- Q1 2024 Tailings and Water Monitoring Summary (PDF, 2 MB)
Piezometric and Deformation Monitoring
- Q1 2023 Piezometric and Deformation Monitoring Summary (PDF, 10 MB)
- Q2 2023 Piezometric and Deformation Monitoring Summary (PDF, 20 MB)
- Q3 2023 Piezometric and Deformation Monitoring Summary (PDF, 14 MB)
- Q4 2023 Piezometric and Deformation Monitoring Summary (PDF, 12 MB)
- Q1 2024 Piezometric and Deformation Monitoring Summary (PDF, 13 MB)
Data Analysis Reports
- 2020 Data Analysis Report (PDF, 76 MB)
- 2021 Data Analysis Report (PDF, 279 MB)
- 2022 Data Analysis Report (PDF, 266 MB)
Risk Assessment
- 2022 Risk Assessment Report (PDF, 6 MB)
- Risk Assessment April 2024 Presentation (PDF, 10 MB)
Environmental Documents
Air Quality Permit
- Montana Air Quality Permit #1749-14 (PDF, 416 KB)
Seasonal Emissions Inventory
- 2022 Summer Seasonal Final Report
- 2023 Summer Seasonal Final Report
- 2024 Summer Seasonal Final Report
- 2022-2023 Winter Seasonal Final Report
- 2023-2024 Winter Seasonal Final Report