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Submissions from 2026
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Butte Priority Soils Operable Unit (BPSOU) 2025 Monthly Progress Report. Consent Decree for the Butte Priority Soils Operable Unit. Civil Action No. CV 89-039-BU-SEH, Atlantic Richfield Company
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Final Repository Siting Study (RSS) Detailed Evaluation and Recommendations Report, Atlantic Richfield Company and Butte Silver Bow
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2020 through 2024 Groundwater Compliance Evaluation Technical Memorandums Silver Bow Creek Butte Area NPL Site, Butte Priority Soils Operable Unit Consent Decree-Civil Action No. CV 89-039-BU-SHE, Josh Bryson
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2020 through 2024 Groundwater Compliance Evaluation Technical Memorandums Silver Bow Creek Butte Area NPL Site, Butte Priority Soils Operable Unit Consent Decree-Civil Action No. CV 89-039-BU-SHE, Josh Bryson
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2020 through 2024 Groundwater Compliance Evaluation Technical Memorandums Silver Bow Creek Butte Area NPL Site, Butte Priority Soils Operable Unit Consent Decree-Civil Action No. CV 89-039-BU-SHE, Josh Bryson
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2020 through 2024 Groundwater Compliance Evaluation Technical Memorandums Silver Bow Creek Butte Area NPL Site, Butte Priority Soils Operable Unit Consent Decree-Civil Action No. CV 89-039-BU-SHE, Josh Bryson
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2020 through 2024 Groundwater Compliance Evaluation Technical Memorandums Silver Bow Creek Butte Area NPL Site, Butte Priority Soils Operable Unit Consent Decree-Civil Action No. CV 89-039-BU-SHE, Josh Bryson
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2020 through 2024 Surface Water Compliance Evaluation Technical Memorandums Silver Bow Creek Butte Area NPL Site, Butte Priority Soils Operable Unit Consent Decree-Civil Action No. CV 89-039-BU-SHE, Josh Bryson
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2020 through 2024 Surface Water Compliance Evaluation Technical Memorandums Silver Bow Creek Butte Area NPL Site, Butte Priority Soils Operable Unit Consent Decree-Civil Action No. CV 89-039-BU-SHE, Josh Bryson
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2020 through 2024 Surface Water Compliance Evaluation Technical Memorandums Silver Bow Creek Butte Area NPL Site, Butte Priority Soils Operable Unit Consent Decree-Civil Action No. CV 89-039-BU-SHE, Josh Bryson
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2020 through 2024 Surface Water Compliance Evaluation Technical Memorandums Silver Bow Creek Butte Area NPL Site, Butte Priority Soils Operable Unit Consent Decree-Civil Action No. CV 89-039-BU-SHE, Josh Bryson
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2020 through 2024 Surface Water Compliance Evaluation Technical Memorandums Silver Bow Creek Butte Area NPL Site, Butte Priority Soils Operable Unit Consent Decree-Civil Action No. CV 89-039-BU-SHE, Josh Bryson
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MONTHLY PROGRESS REPORT BUTTE PRIORITY SOILS OPERABLE UNIT CONSENT DECREE PARTIAL REMEDIAL DESIGN/REMEDIAL ACTION AND OPERATION AND MAINTENANCE January 2026, Josh Bryson
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Response to Agency Comments Re: Comment Letter for the 2022 Butte Priority Soils Operable Unit (BPSOU) Groundwater Compliance Evaluation (dated March 10, 2025), Josh Bryson
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Response to Agency Comments Re: Comment Letter for the 2023 Butte Priority Soils Operable Unit (BPSOU) Groundwater Compliance Evaluation (dated March 10, 2025) Received May 7, 2025, Josh Bryson
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Response to Agency Comments Re: Comments on the Draft Butte Priority Soils Operable Unit (BPSOU) 2020 Groundwater Compliance and Interpretation Technical Memorandum (dated May 12, 2022, Josh Bryson
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Response to Agency Comments Re: Comments on the Draft Butte Priority Soils Operable Unit (BPSOU) Draft Surface Water Compliance and Interpretation Technical Memorandum (dated May 12, 2022), Josh Bryson
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2024 Annual Operations and Maintenance Report - 2024 BRES Annual Summary Report for Work Completed in Quadrant 4, Butte-Silver Bow Department of Reclamation and Environmental Services
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Butte Priority Soils Operable Unit (BPSOU) Data Summary Report (DSR) Statement of Authenticity Updates, Mike McAnulty
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Butte Medical Monitoring Working Group Meeting, Mike McAnulty and Eric Hassler
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2026 Revised Draft Final BPSOU Backfill and Cover Material Quality Assurance Project Plan (QAPP), Pioneer Technical Services, Inc.
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Final 2022 Insufficiently Reclaimed Sites Sampling: BRES No. 30 – Atlantic-1 Site Evaluation Summary Report, Pioneer Technical Services, Inc.
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Final 2022 Insufficiently Reclaimed Sites Sampling: BRES No. 32 – Corra 2 Dump Site Evaluation Summary Report, Pioneer Technical Services, Inc.
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Final 2022 Insufficiently Reclaimed Sites Sampling: BRES No. 38 – Sister Dump Site Evaluation Summary Report, Pioneer Technical Services, Inc.
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Final 2022 Unreclaimed Sites Sampling: UR-06 Site Evaluation Summary Report, Pioneer Technical Services, Inc.
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Final 2022 Unreclaimed Sites Sampling: UR-12 Site Evaluation Summary Report, Pioneer Technical Services, Inc.
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Final 2022 Unreclaimed Sites Sampling: UR-13 Site Evaluation Summary Report, Pioneer Technical Services, Inc.
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Final 2022 Unreclaimed Sites Sampling: UR-20 Site Evaluation Summary Report, Pioneer Technical Services, Inc.
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Final 2022 Unreclaimed Sites Sampling: UR-22 Site Evaluation Summary Report, Pioneer Technical Services, Inc.
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Final 2022 Unreclaimed Sites Sampling: UR-28 Site Evaluation Summary Report, Pioneer Technical Services, Inc.
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Final 2022 Unreclaimed Sites Sampling: UR-28 Site Evaluation Summary ReportFinal 2022 Unreclaimed Sites Sampling: UR-28 Site Evaluation Summary Report, Pioneer Technical Services, Inc.
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Final Annual Operations and Maintenance (O&M) Report: Butte Treatment Lagoon (BTL) System – 2023, Pioneer Technical Services, Inc.
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Final Butte Priority Soils Operable Unit (BPSOU) Unreclaimed Sites: UR-08 (Anderson Shaft) Remedial Action Work Plan (RAWP), Pioneer Technical Services, Inc.
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Re: Approval letter for the Butte Priority Soils Operable Unit (BPSOU) Revised Draft Final 2022 Unreclaimed Sites Sampling: UR-06 Site Evaluation Summary Report (dated December 10, 2025), Molly Roby
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Re: Approval letter for the Butte Priority Soils Operable Unit (BPSOU) Revised Draft Final 2022 Unreclaimed Sites Sampling: UR-12 Site Evaluation Summary Report (dated December 9, 2025), Molly Roby
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Re: Approval letter for the Butte Priority Soils Operable Unit (BPSOU) Revised Draft Final 2022 Unreclaimed Sites Sampling: UR-22 Site Evaluation Summary Report (dated December 10, 2025), Molly Roby
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Re: Approval letter for the Draft Final 2026 Butte Priority Soils Operable Unit (BPSOU) McDermott Basin Creek Water Treatment Plant Subsurface Fill Borrow Submittal #1, Molly Roby
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Re: Comment letter for the Butte Priority Soils Operable Unit (BPSOU) 2026 Revised Draft Final Backfill and Cover Soil Quality Assurance Project Plan (QAPP) (dated January 5, 2026), Molly Roby
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Re: Conditional Approval letter for the Butte Priority Soils Operable Unit (BPSOU) Draft Final Potential Logan, Montana, Borrow Source Site Environmental Assessment Checklist, Molly Roby
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Re: Comment Letter for Draft Clark Tailings Consolidated Waste Management Area (CTCWMA) 2024 Data Summary Report (dated October 15, 2025), Emma Rott
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Re: Conditional Approval Letter for the Draft Final Butte Reduction Works (BRW) Smelter Area Mine Waste Remediation and Contaminated Groundwater Hydraulic Control Site Pre-Design Investigation (PDI) Evaluation Report (dated September 12, 2025), Emma Rott
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Re: Conditional Approval Letter with comments for Butte Priority Soils Operable Unit (BPSOU) Draft Final 2026 Interim Site-Wide Surface Water Monitoring Quality Assurance Project Plan (QAPP) (dated February 4, 2026), Emma Rott
Submissions from 2025
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REVISED FINAL MULTI-PATHWAY RESIDENTIAL METALS ABATEMENT PROGRAM PLAN, Atlantic Richfield Company and Butte Silver Bow
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REVISED FINAL MULTI-PATHWAY RESIDENTIAL METALS ABATEMENT PROGRAM PLAN, Atlantic Richfield Company and Butte Silver Bow
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Berkeley Pit and Discharge Pilot Project Quarterly Pilot Project Report Second Quarter 2025, Atlantic Richfield Company and Montana Resources, LLC
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Berkeley Pit and Discharge Pilot Project Quarterly Pilot Project Report Third Quarter 2024, Atlantic Richfield Company and Mark Thompson
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Residential Metals Abatement Program Investigation Summary Report (Non-Residential Parcels – Indoor Dust) - CCCS Gym Annex, Christopher Berg and Thomas J. Beckman
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Butte Priority Soils Operable Unit (BPSOU) 2024 Monthly Progress Report. Consent Decree for the Butte Priority Soils Operable Unit. Civil Action No. CV 89-039-BU-SEH, Josh Bryson
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Butte Priority Soils Operable Unit (BPSOU) 2025 Monthly Progress Report. Consent Decree for the Butte Priority Soils Operable Unit. Civil Action No. CV 89-039-BU-SEH, Josh Bryson
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Butte Priority Soils Operable Unit (BPSOU) 2025 Monthly Progress Report. Consent Decree for the Butte Priority Soils Operable Unit. Civil Action No. CV 89-039-BU-SEH, Josh Bryson
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Butte Priority Soils Operable Unit (BPSOU) 2025 Monthly Progress Report. Consent Decree for the Butte Priority Soils Operable Unit. Civil Action No. CV 89-039-BU-SEH, Josh Bryson
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Butte Priority Soils Operable Unit (BPSOU) 2025 Monthly Progress Report. Consent Decree for the Butte Priority Soils Operable Unit. Civil Action No. CV 89-039-BU-SEH, Josh Bryson
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Butte Priority Soils Operable Unit (BPSOU) Groundwater Remedy Optimization Subdrain Pump Station Preliminary (30%) Remedial Design Package Submittal, Josh Bryson
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Butte Priority Soils Operable Unit (BPSOU) Superfund Operation and Maintenance (O&M) Request for Maintenance – Kelley Stormwater Channels (Dated April 22, 2025), Josh Bryson
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MONTHLY PROGRESS REPORT BUTTE PRIORITY SOILS OPERABLE UNIT CONSENT DECREE PARTIAL REMEDIAL DESIGN/REMEDIAL ACTION AND OPERATION AND MAINTENANCE, Josh Bryson
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RE: 1st Quarter 2025 – Interim Site-Wide Surface Water Monitoring Data Report Silver Bow Creek Butte Area NPL Site, Butte Priority Soils Operable Unit Consent Decree-Civil Action No. CV 89-039-BU-SHE, Josh Bryson
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RE: 2025 Spring Semi-Annual – Interim Site-Wide Groundwater Monitoring Data Report Silver Bow Creek Butte Area NPL Site, Butte Priority Soils Operable Unit Consent Decree-Civil Action No. CV 89-039-BU-SHE, Josh Bryson
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RE: 2nd Quarter 2025 – Interim Site-Wide Surface Water Monitoring Data Report Silver Bow Creek Butte Area NPL Site, Butte Priority Soils Operable Unit Consent Decree-Civil Action No. CV 89-039-BU-SHE, Josh Bryson
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RE: 3rd Quarter 2025 – Interim Site-Wide Surface Water Monitoring Data Report Silver Bow Creek Butte Area NPL Site, Butte Priority Soils Operable Unit Consent Decree-Civil Action No. CV 89-039-BU-SHE, Josh Bryson
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RE: BPSOU Superfund Stormwater Operation and Maintenance (O&M) Request for Maintenance – Kelley Stormwater Channels, Josh Bryson
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RE: Butte Priority Soils Operable Unit (BPSOU) 2025 Monthly Progress Report. Consent Decree for the Butte Priority Soils Operable Unit. Civil Action No. CV 89-039-BU-SEH, Josh Bryson
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RE: Butte Priority Soils Operable Unit (BPSOU) Superfund Operation and Maintenance (O&M) Request for Maintenance – Kelley Stormwater Channels (Dated April 22, 2025), Josh Bryson
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RE: Butte Priority Soils Operable Unit Final Leak Infiltration Evaluation, Josh Bryson
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RE: Continued Use of the Approved Groundwater Quality Assurance Project Plan Silver Bow Creek Butte Area NPL Site, Butte Priority Soils Operable Unit Consent Decree-Civil Action No. CV 89-039-BU-SHE, Josh Bryson
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RE: Continued Use of the Approved Groundwater Quality Assurance Project Plan Silver Bow Creek Butte Area NPL Site, Butte Priority Soils Operable Unit Consent Decree-Civil Action No. CV 89-039-BU-SHE, Josh Bryson
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RE: Continued Use of the Approved Surface Water Quality Assurance Project Plan Silver Bow Creek Butte Area NPL Site, Butte Priority Soils Operable Unit Consent Decree-Civil Action No. CV 89-039-BU-SHE, Josh Bryson
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RE: Continued Use of the Approved Surface Water Quality Assurance Project Plan Silver Bow Creek Butte Area NPL Site, Butte Priority Soils Operable Unit Consent Decree-Civil Action No. CV 89-039-BU-SHE, Josh Bryson
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RE: Final Blacktail Creek Groundwater Hydraulic Control System Pre-Design Investigation Evaluation Report, Josh Bryson
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RE: Silver Bow Creek Butte Area NPL Site 4th Quarter 2024 Butte Priority Soils Operable Unit Interim Site-Wide Surface Water Monitoring Data Report. Consent Decree- Civil Action No. CV 89- 039-BU-SHE, Josh Bryson
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RE: Silver Bow Creek Butte Area NPL Site Fall Semi-Annual 2024 Butte Priority Soils Operable Unit Interim Site-Wide Groundwater Monitoring Data Report. Consent Decree- Civil Action No. CV 89-039-BU-SHE, Josh Bryson
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Silver Bow Creek Butte Area NPL Site 4th Quarter 2024 Butte Priority Soils Operable Unit Interim Site-Wide Surface Water Monitoring Data Report. Consent Decree- Civil Action No. CV 89- 039-BU-SHE, Josh Bryson
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Silver Bow Creek Butte Area NPL Site Fall Semi-Annual 2024 Butte Priority Soils Operable Unit Interim Site-Wide Groundwater Monitoring Data Report. Consent Decree- Civil Action No. CV 89-039-BU-SHE, Josh Bryson
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2022 Annual Operations and Maintenance Report, Butte Silver Bow
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2023 Annual Operations and Maintenance Report, Butte-Silver Bow Department of Reclamation and Environmental Services
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2024 Annual Operations and Maintenance Report, Butte-Silver Bow Department of Reclamation and Environmental Services
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2025 Field Evaluation of Reclaimed Sites Summary Report, Butte-Silver Bow Department of Reclamation and Environmental Services
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Butte Reclamation Evaluation System Corrective Action Plans for Reclaimed Sites - 2024 BRES Site Specific Corrective Action Plans for Quadrant 1, Butte-Silver Bow Department of Reclamation and Environmental Services
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Exhibit 2 “Basement ISWP” 1029 Oregon Ave. Butte, MT 59701 January 30, 2025 Database Residential Identifier: R-03611, Butte-Silver Bow Department of Reclamation and Environmental Services
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Exhibit 2 “Basement ISWP” 122 W. Daly St. Butte, MT 59701 January 16, 2025 Database Residential Identifier: R-00845, Butte-Silver Bow Department of Reclamation and Environmental Services
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Exhibit 2 “Basement ISWP” 1232 E. Second St. Butte, MT 59701 January 21, 2025 Database Residential Identifier: R-04389, Butte-Silver Bow Department of Reclamation and Environmental Services
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Exhibit 2 “Basement ISWP” 223 N. Alabama St. Butte, MT 59701 January 2, 2025 Database Residential Identifier: R-00455, Butte-Silver Bow Department of Reclamation and Environmental Services
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Exhibit 2 “Basement ISWP” 537 S. Colorado St. Butte, MT 59701 January 22, 2025 Database Residential Identifier: R-05338, Butte-Silver Bow Department of Reclamation and Environmental Services
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Exhibit 2 “Basement ISWP” 604 S. Clark St. Butte, MT 59701 January 24, 2025 Database Residential Identifier: R-01537, Butte-Silver Bow Department of Reclamation and Environmental Services
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Exhibit 2 “Basement ISWP” 615 W. Galena St. Butte, MT 59701 January 23, 2025 Database Residential Identifier: R-05384, Butte-Silver Bow Department of Reclamation and Environmental Services
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FINAL REMOVAL SIGN OFF Individual Site Work Plans 2025 Round 2 RMAP Basement Projects Butte, MT 59701 January 31, 2025, Butte-Silver Bow Department of Reclamation and Environmental Services and Atlantic Richfield Company
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REVISED FINAL - MULTI-PATHWAY RESIDENTIAL METALS ABATEMENT PROGRAM PLAN, Butte-Silver Bow Department of Reclamation and Environmental Services and Atlantic Richfield Company
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RESPONSE TO EPA COMMENTS DATED SEPTEMBER 16, 2025 FOR THE BLACKTAIL CREEK RIPARIAN ACTIONS UNIFORM FEDERAL POLICY - QUALITY ASSURANCE PROJECT PLAN SILVER BOW CREEK/BUTTE AREA SUPERFUND SITE SILVER BOW COUNTY, MONTANA, Environmental Protection Agency
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EPA REGION 8 OPTIMIZED UFP-QAPP REVIEW CROSSWALK, Environmental Protection Agency and Emma Rott
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Residential Metals Abatement Program Construction Completion Report East Middle School, Environmental Resource Management (ERM)
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2024 RMAP NON-RESIDENTIAL PARCELS DATA SUMMARY REPORT SILVER BOW CREEK/BUTTE AREA NPL SITE BPSOU, Environmental Standards, Inc. and Pioneer Technical Services, Inc.
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NRDP Comments on BP-Atlantic Richfield (BP-AR’s) Draft Materials Management Plan and Associated Documents at Butte Priority Soils Operable Unit of the Silver Bow Creek/Butte Area Superfund Site, Jim Ford
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Blacktail Creek PDIER, HGL
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DRAFT FINAL PHASE I PRE-DESIGN INVESTIGATION EVALUATION REPORT BLACKTAIL CREEK RIPARIAN ACTIONS BUTTE PRIORITY SOILS OPERABLE UNIT OF THE SILVER BOW CREEK/BUTTE AREA SUPERFUND SITE SILVER BOW COUNTY, MONTANA, HydroGeoLogic, Inc.
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REVISED DRAFT FINAL UNIFORM FEDERAL POLICYQUALITY ASSURANCE PROJECT PLAN, HydroGeoLogic, Inc.
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REVISED FINAL UNIFORM FEDERAL POLICY- QUALITY ASSURANCE PROJECT PLAN, HydroGeoLogic, Inc.
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REVISED FINAL UNIFORM FEDERAL POLICYQUALITY ASSURANCE PROJECT PLAN, HydroGeoLogic, Inc.
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Butte Priority Soils Operable Unit (BPSOU)2020 Consent Decree Appendix D Attachment C Sections 7 and 8 Discrepancies, Mike McAnulty
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Butte Priority Soils Operable Unit (BPSOU) Draft Final Insufficiently Reclaimed Sites Field Sampling and Investigation Plan (FSP): BRES No. 100 – Capri Motel – Arctic Dump, Mike McAnulty
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Butte Priority Soils Operable Unit (BPSOU) Draft Final Reclamation Improvement Sites Field Sampling and Investigation Plan (FSP): BRES No. 18 – Walkerville Ballfield, Mike McAnulty
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Butte Priority Soils Operable Unit (BPSOU) Final BPSOU Insufficiently Reclaimed Sites Belle of Butte (BRES No. 8 & UR-39) Remedial Action Work Plan (RAWP) Request for Change IR- 2024-RA-01, Mike McAnulty
