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Submissions from 2025
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Re: Comment Letter for Butte Priority Soils Operable Unit (BPSOU) Draft 2026 Interim Site-Wide Groundwater Monitoring Quality Assurance Project Plan (QAPP) (dated November 18, 2025), Emma Rott
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Re: Comment Letter for Butte Priority Soils Operable Unit (BPSOU) Draft Interim Site-Wide Surface Water Monitoring Quality Assurance Project Plan (QAPP) (dated November 24, 2025), Emma Rott
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Re: Comment Letter for Butte Priority Soils Operable Unit (BPSOU), Draft Preliminary (30%) Remedial Design Report, Blacktail Creek Riparian Actions (dated July 28, 2025), Emma Rott
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Re: Comment Letter for Butte Priority Soils Operable Unit (BPSOU) Notice of Intent to Abandon BPS07-05A and BPS07-05B (dated July 14, 2025), Emma Rott
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Re: Comment Letter for Butte Priority Soils Operable Unit (BPSOU) Principles for a Greener Cleanup Report (dated December 23, 2024), Emma Rott
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Re: Comment Letter for Butte Priority Soils Operable Unit (BPSOU) Superfund Operation and Maintenance (O&M) Request for Maintenance – Kelley Stormwater Channels (dated April 22, 2025), Emma Rott
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Re: Comment Letter for Butte Priority Soils Operable Unit Draft Final Leak Infiltration Evaluation (dated July 24, 2025), Emma Rott
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Re: Comment Letter for Butte Priority Soils Operable Unit Subdrain Pump Station 30% Remedial Design Package Submittal (dated January 31, 2025), Emma Rott
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Re: Comment Letter for Clark Tailings Consolidated Waste Management Area (CTCWMA) Site Investigation Quality Assurance Project Plan Revision 01 (dated June 6, 2025), Emma Rott
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Re: Comment Letter for Diggings East 95 % Remedial Design Package Submittal (dated August 29, 2025), the Silver Bow Creek Conservation Area (SBCCA) – 95 Percent Programmatic Technical Specifications Submittal (dated August 19, 2025), the Draft Final SBCCA Construction Quality Assurance Plan (dated August 20, 2025) and the Butte Priority Soils SBCCA Operations and Maintenance (O&M) Plan (dated August 14, 2025), Emma Rott
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Re: Comment Letter for Draft Blacktail Creek Groundwater Hydraulic Control System Preliminary 30% Remedial Design Report (dated October 28, 2024), Emma Rott
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Re: Comment Letter for the 2022 Butte Priority Soils Operable Unit (BPSOU) Groundwater Compliance Evaluation (dated March 10, 2025), Emma Rott
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Re: Comment Letter for the 2023 Butte Priority Soils Operable Unit (BPSOU) Groundwater Compliance Evaluation (dated March 10, 2025), Emma Rott
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Re: Comment letter for the Butte Priority Soils Operable Unit (BPSOU) Butte Treatment Lagoons (BTL) Groundwater Treatment System Quarterly Operation and Maintenance Report – Quarter 2 2025 (dated September 30, 2025), Emma Rott
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Re: Comment letter for the Butte Priority Soils Operable Unit (BPSOU) Butte Treatment Lagoons (BTL) Groundwater Treatment System Routine Operations, Maintenance, and Monitoring (OM&M) Plan (dated December 10, 2024), Emma Rott
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Re: Comment letter for the Butte Priority Soils Operable Unit (BPSOU) Draft Final Materials Management Plan (dated November 21, 2024), Emma Rott
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Re: Comment letter for the Draft Final Silver Bow Creek Conservation Area Repository Data Gap Data Summary Report (dated January 3, 2025), Emma Rott
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Re: Comment letter for the Final Butte Reduction Works (BRW) Smelter Area Waste Remediation and Contaminated Groundwater Hydraulic Control Site Air Monitoring Quality Assurance Project Plan (QAPP) for Interim Demolition Activities (dated May 19, 2025), Emma Rott
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Re: Comments on the Draft Final Butte Mine Waste Repository Geotechnical Investigation Work Plan (dated September 23, 2025), Emma Rott
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Re: Comments on the Repository, Haul Route, and Pipeline Geotechnical Pre-Design Investigation Summary Report (dated December 30, 2024), Emma Rott
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Re: Comments on the Repository, Haul Route, and Pipeline Geotechnical Pre-Design Investigation Summary Report (dated May 13, 2025), Emma Rott
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Re: Conditional Approval Letter for Butte Priority Soils (BPSOU) Draft Blacktail Creek Riparian Actions Remedial Design Work Plan (dated May 1, 2025, received July 28, 2025), Emma Rott
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Re: Conditional approval letter for the Butte Priority Soils Operable Unit (BPSOU) Draft Final Quarterly Operations and Maintenance Report Butte Treatment Lagoons (BTL) System – Third Quarter 2024 (dated December 23, 2024), Emma Rott
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Re: Conditional Approval Letter for the Butte Priority Soils Operable Unit Clark Tailings Consolidated Waste Management Area Site Investigation Quality Assurance Project Plan Revision 0 (2025 Update) and Response to EPA Comments. (dated September 16, 2025), Emma Rott
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Re: Conditional Approval Letter for the Final Butte Mine Waste Repository Geotechnical Investigation Work Plan (dated November 14, 2025), Emma Rott
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Re: Condition Approval Letter for BPSOU Draft Final Phase I Design Investigation Evaluation Report, Blacktail Creek Riparian Actions (dated May 2, 2025, received July 28, 2025), Emma Rott
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Re: Letter response to Butte Priority Soils Operable Unit (BPSOU) Continued Use of the Approved Groundwater Quality Assurance Project Plan Silver Bow Creek Butte Area NPL Site (dated September 15, 2025), Emma Rott
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Re: Letter response to Butte Priority Soils Operable Unit (BPSOU) Continued Use of the Approved Surface Water Quality Assurance Project Plan Silver Bow Creek Butte Area NPL Site (dated September 15, 2025), Emma Rott
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Technical Memorandum - RE: 2022 Butte Priority Soils Operable Unit (BPSOU) Groundwater Compliance Evaluation, Paddy Stoy
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Technical Memorandum - RE: 2022 Butte Priority Soils Operable Unit (BPSOU) Groundwater Compliance Evaluation, Paddy Stoy
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TECHNICAL MEMORANDUM - RE: 2022 Butte Priority Soils Operable Unit (BPSOU) Groundwater Compliance Evaluation, Paddy Stoy
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Technical Memorandum - RE: 2023 Butte Priority Soils Operable Unit (BPSOU) Groundwater Compliance Evaluation, Paddy Stoy
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February 2025 Berkeley Pit Migratory Waterfowl Protection Monthly Report, Mark Thompson and Loren Burmeister
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February 2025 Berkeley Pit Migratory Waterfowl Protection Monthly Report, Mark Thompson and Loren Burmeister
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Re: 2025 Spring Migration Seasonal Report for Berkeley Pit Waterfowl Protection Plan, Mark Thompson and Loren Burmeister
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Re: August 2025 Berkeley Pit Migratory Waterfowl Protection Monthly Report, Mark Thompson and Loren Burmeister
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Re: December 2024 Berkeley Pit Migratory Waterfowl Protection Monthly Report, Mark Thompson and Loren Burmeister
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Re: January 2025 Berkeley Pit Migratory Waterfowl Protection Monthly Report, Mark Thompson and Loren Burmeister
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Re: July 2025 Berkeley Pit Migratory Waterfowl Protection Monthly Report, Mark Thompson and Loren Burmeister
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Re: June 2025 Berkeley Pit Migratory Waterfowl Protection Monthly Report, Mark Thompson and Loren Burmeister
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Re: Pilot Project 2025 Annual Update, Mark Thompson and Loren Burmeister
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Butte Mine Flooding Operable Unit Berkeley Pit and Discharge Pilot Project – January 2025 Monthly Discharge Monitoring Report, Mark Thompson and Dave Griffis
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DISCHARGE SYSTEM FIELD SAMPLING PLAN, 2025 UPDATE SILVER BOW CREEK/BUTTE AREA NPL SITE BUTTE MINE FLOODING OPERABLE UNIT | BUTTE, MONTANA, Mark Thompson and Dave Griffis
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Re: Butte Mine Flooding Operable Unit Berkeley Pit and Discharge Pilot Project – August 2025 Monthly Discharge Monitoring Report, Mark Thompson and Dave Griffis
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Re: Butte Mine Flooding Operable Unit Berkeley Pit and Discharge Pilot Project – December 2024 Monthly Discharge Monitoring Report, Mark Thompson and Dave Griffis
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Re: Butte Mine Flooding Operable Unit Berkeley Pit and Discharge Pilot Project – July 2025 Monthly Discharge Monitoring Report, Mark Thompson and Dave Griffis
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Re: Butte Mine Flooding Operable Unit Berkeley Pit and Discharge Pilot Project – June 2025 Monthly Discharge Monitoring Report, Mark Thompson and Dave Griffis
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Re: Butte Mine Flooding Operable Unit Berkeley Pit and Discharge Pilot Project – May 2025 Monthly Discharge Monitoring Report, Mark Thompson and Dave Griffis
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Re: BUTTE MINE FLOODING SITE CD, CV 02-35 Bu-RFC, 2024 Fourth Quarter Report, Mark Thompson and Dave Griffis
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Re: BUTTE MINE FLOODING SITE CD, CV 02-35 Bu-RFC, 2025 Second Quarter Report, Mark Thompson and Dave Griffis
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Settling Defendants BMFOU Annual Report Consent Decree for the Butte Mine Flooding Site CD, CV 02-35 Bu-RFC Remedial Action – Implementation of the Remedy Horseshoe Bend Water Treatment Plant 2024 Annual Report, Mark Thompson and Dave Griffis
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On-Site Water Management Field Sampling Plan (FSP), 2025 Update, Mark Thompson and Rampart Solutions
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Butte Priority Soils Operable Unit Clark Tailings Consolidated Waste Management Area Site Investigation Quality Assurance Project Plan (QAPP) Revision 0, Woodard & Curran
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Butte Priority Soils Operable Unit Clark Tailings Consolidated Waste Management Area Site Investigation Quality Assurance Project Plan (QAPP) Revision 0, Woodard & Curran
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Clark Tailings Consolidated Waste Management Area (CTCWMA) Site Investigation Draft Data Summary Report 2019 Surface Water, Groundwater Seep, and Soil Characterization 2021-2023 Surface Water and Groundwater Seep Evaluation 2023 Waterloo APS Soil and Groundwater Evaluation, Woodard & Curran
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Clark Tailings Consolidated Waste Management Area (CTCWMA) Site Investigation Draft Data Summary Report 2024 Surface Water, Groundwater, and Soil Characterization, Woodard & Curran
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Clark Tailings Consolidated Waste Management Area (CTCWMA) Site Investigation Final Data Summary Report 2019 Surface Water, Groundwater Seep, and Soil Characterization 2021-2023 Surface Water and Groundwater Seep Evaluation 2023 Waterloo APS Soil and Groundwater Evaluation, Woodard & Curran
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DRAFT 2025 Interim Site-Wide Surface Water Monitoring Quality Assurance Project Plan, Woodard & Curran
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DRAFT 2026 Interim Site-Wide Groundwater Monitoring Quality Assurance Project Plan, Woodard & Curran
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DRAFT 2026 Interim Site-Wide Surface Water Monitoring Quality Assurance Project Plan, Woodard & Curran
Submissions from 2024
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PILOT PROJECT QUALITY ASSURANCE PROJECT PLAN 2024 UPDATE, Alloy Group
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Butte Priority Soils Operable Unit (BPSOU) Draft Final Unreclaimed Sites Field Sampling Plan (FSP) Package #11: UR-49 and UR-50, Atlantic Richfield Company
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TECHNICAL SPECIFICATIONS - Silver Bow Creek Conservation Area - 60% SUBMITTAL April 2024, Atlantic Richfield Company
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REVISED FINAL MULTI-PATHWAY RESIDENTIAL METALS ABATEMENT PROGRAM PLAN, Atlantic Richfield Company and Butte Silver Bow
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Residential Metals Abatement Program – Interior School Dust – Investigation Summary Report – After the Bell Child Care Center, Thomas J. Beckman, Christopher Berg, and Environmental Resource Management (ERM)
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Residential Metals Abatement Program Construction Completion Report (Non- Residential Parcels – Indoor Dust) Butte Career Center / Webster Garfield, Christopher Berg and Thomas J. Beckman
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Residential Metals Abatement Program Construction Completion Report (Non- Residential Parcels – Indoor Dust) East Middle School, Christopher Berg and Thomas J. Beckman
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Residential Metals Abatement Program Construction Completion Report (Non- Residential Parcels – Indoor Dust) Kennedy Elementary, Christopher Berg and Thomas J. Beckman
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Residential Metals Abatement Program Construction Completion Report Butte Career Center / Webster Garield, Christopher Berg, Thomas J. Beckman, and Environmental Resource Management (ERM)
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Residential Metals Abatement Program Construction Completion Report Kennedy Elementary, Christopher Berg, Thomas J. Beckman, and Environmental Resource Management (ERM)
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Residential Metals Abatement Program Construction Completion Report (Non- Residential Parcels – Indoor Dust) Silver Bow Montessori, Christopher Berg, Thomas J. Beckman, and Environmental Resource Management (ERM)
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Residential Metals Abatement Program Investigation Summary Report Kennedy Elementary School Post- Remedial Action Surface Dust Sampling, Christopher Berg and Elsie King
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Approved Silver Bow Creek Conservation Area Repository Data Gap Quality Assurance Project Plan Request for Change to Install Additional Test Pits and Perform Material Characterization, Josh Bryson
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Attachment A Demonstration of Need for Butte Priority Soils Operable Unit (BPSOU) Temporary Construction Surface Water Performance Standards Variance Request for Grove Gulch Sedimentation Bay Remedial Action Site, Josh Bryson
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Berkeley Pit Geochemical and Limnological Evaluation Pre-Design Investigation (PDI) Work Plan, Josh Bryson
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Berkely Pit Repository Cost Comparison, Josh Bryson
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Butte Priority Soils Operable Unit Diggings East 60% Remedial Design Package Submittal, Josh Bryson
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Butte Priority Soils Operable Unit Grove Gulch Sedimentation Bay 100% Remedial Design, Josh Bryson
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Butte Priority Soils Operable Unit SBCCA Principles for a Greener Cleanup Report, Josh Bryson
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Butte Reduction Works (BRW) Phase II Interim Demolition Plan Construction Drawings and Floodplain Encroachment Analysis, Josh Bryson
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Butte Reduction Works (BRW) Phase III Quality Assurance Project Plan (QAPP) Request for Change BRW-2024-01, Josh Bryson
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RE: Approved Silver Bow Creek Conservation Area Repository Data Gap Quality Assurance Project Plan Request for Change to Install Additional Test Pits and Perform Material Characterization, Josh Bryson
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RE: Butte Reduction Works (BRW) Phase III Quality Assurance Project Plan (QAPP) Request for Change BRW-2024-01, Josh Bryson
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RE: Silver Bow Creek Butte Area NPL Site 2nd 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 3rd 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 4th Quarter 2023 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 2023 Butte Priority Soils Operable Unit Interim Site-Wide Groundwater Monitoring Data Report. Consent DecreeCivil Action No. CV 89-039-BU-SHE, Josh Bryson
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RE: Silver Bow Creek Butte Area NPL Site Spring 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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RE: Silver Bow Creek Conservation Area Repository Data Gap Quality Assurance Project Plan (QAPP), Josh Bryson
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RE: Silver Bow Creek Conservation Area Repository Data Gap Quality Assurance Project Plan (QAPP), Josh Bryson
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Silver Bow Creek Butte Area NPL Site 3rd 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 4th Quarter 2023 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 Butte Priority Soils Operable Unit, Remedial Design Documents for the Blacktail Creek Area Groundwater Hydraulic Control System, Josh Bryson
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Silver Bow Creek/Butte Area NPL Site Butte Priority Soils Operable Unit, Remedial Design Documents for the Blacktail Creek Area Groundwater Hydraulic Control System, Josh Bryson
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Silver Bow Creek Butte Area NPL Site Fall Semi-Annual 2023 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 Spring 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 Conservation Area Repository Data Gap Quality Assurance Project Plan Request for Change to Install Additional Test Pits and Perform Material Characterization, Josh Bryson
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Silver Bow Creek Conservation Area (SBCCA) 60% Technical Specifications Submittal, Josh Bryson
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TECHNICAL MEMORANDUM Grove Gulch Earth Volumetric Studio Model Inputs, Josh Bryson
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Pilot Project 2024 Annual Update, Loren Burmeister and Mark Thompson
