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Submissions from 2025

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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 Gar􀏐ield, 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

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Butte Priority Soils Operable Unit, Butte Reclamation Evaluation System Draft 2024 Field Evaluation of Previously Reclaimed Sites Summary and Technical Recommendations Report, Butte-Silver Bow Department of Reclamation and Environmental Services

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FINAL 2023 BRES FSR and CAPs, Butte-Silver Bow Department of Reclamation and Environmental Services

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Butte Reduction Work (BRW) Phase II Interim Demolition Plan Construction Drawings and Floodplain Encroachment Analysis, Julia Crain

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Proposed Plan to Amend the Remedial Action for the Butte Priority Soils Operable Unit, Environmental Protection Agency

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2024 Residential Metals Abatement Program (RMAP) Field Sampling Plan (FSP) – Indoor Dust – Group 10 - After the Bell Child Care Center, Environmental Resource Management (ERM)

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2024 Residential Metals Abatement Program (RMAP) Field Sampling Plan (FSP) – Indoor Dust – Group 11 - Baptist Student Union, Environmental Resource Management (ERM)

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2024 Residential Metals Abatement Program (RMAP) Field Sampling Plan (FSP) – Indoor Dust – Group 11 - Baptist Student Union, Environmental Resource Management (ERM)

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2024 Residential Metals Abatement Program (RMAP) Field Sampling Plan (FSP) – Indoor Dust – Kennedy Elementary Surface Dust Resampling, Environmental Resource Management (ERM)

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2024 Residential Metals Abatement Program (RMAP) Field Sampling Plan (FSP) – Indoor Dust – Kennedy Elementary Surface Dust Resampling, Environmental Resource Management (ERM)

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Remedial Action Work Plan Silver Bow Montessori, Environmental Resource Management (ERM)

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Residential Metals Abatement Program Construction Completion Report (Non- Residential Parcels – Indoor Dust) Small World Day Care, Environmental Resource Management (ERM)

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Residential Metals Abatement Program Construction Completion Report (Non-Residential Parcels – Indoor Soil) - Butte High School, Environmental Resource Management (ERM)

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Residential Metals Abatement Program Construction Completion Report (Non-Residential Parcels – Indoor Soil) - Butte High School, Environmental Resource Management (ERM)

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Residential Metals Abatement Program Investigation Summary Report After the Bell Child Care Center, Environmental Resource Management (ERM)

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Residential Metals Abatement Program Investigation Summary Report (Non-Residential Parcels – Indoor Dust) - East Middle School, Environmental Resource Management (ERM)

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Residential Metals Abatement Program Investigation Summary Report (Non-Residential Parcels – Indoor Dust) East Middle School, Environmental Resource Management (ERM)

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Residential Metals Abatement Program Investigation Summary Report (Non-Residential Parcels – Indoor Dust) East Middle School, Environmental Resource Management (ERM)

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Residential Metals Abatement Program Investigation Summary Report (Non-Residential Parcels – Indoor Dust) - Emerson Elementary School, Environmental Resource Management (ERM)

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Residential Metals Abatement Program Investigation Summary Report (Non-Residential Parcels – Indoor Dust) - Gold Hill Lutheran Church (Creativity Factory Preschool), Environmental Resource Management (ERM)

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Residential Metals Abatement Program Investigation Summary Report (Non- Residential Parcels – Indoor Dust) Small World Daycare, Environmental Resource Management (ERM)

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Residential Metals Abatement Program Investigation Summary Report (Non-Residential Parcels – Indoor Dust) - Small World Daycare, Environmental Resource Management (ERM)

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Residential Metals Abatement Program Investigation Summary Report (Non-Residential Parcels – Indoor Dust) - Small World Daycare, Environmental Resource Management (ERM)

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Residential Metals Abatement Program Investigation Summary Report (Non-Residential Parcels – Indoor Dust) United Congregational Church (Crayon Academy Preschool), Environmental Resource Management (ERM)

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United Congregational Church (Crayon Academy Preschool), Environmental Resource Management (ERM)

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Draft Comments on BPSOU “Diggings East 60% Remedial Design Package” Received from British Petroleum - Atlantic Richfield Company (BP-AR) on 4/23/2024, Jim Ford

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Approval letter for the Butte Priority Soils Operable Unit (BPSOU) Revised 2023 Residential Metals Abatement Program (RMAP) Field Sampling Plan (FSP) – Indoor Dust – Group 8 – Gold Hill Lutheran Church (Creativity Factory Preschool) and United Congregational (Crayon Academy Preschool) (dated July 26, 2023), Nikia Greene

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Approval letter for the Request for Change (RFC) to the Butte Priority Soils Operable Unit (BPSOU) Request for Change (RFC)-BRW-2023-03 to the Final Butte Reduction Works (BRW) Smelter Area Mine Waste Remediation and Contaminated Groundwater Hydraulic Control Site Phase III Quality Assurance Project Plan (QAPP) (Phase III) (dated June 29, 2023)., Nikia Greene

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Re: Approval of Berkeley Pit Predictive Water Level Model letter; dated January 24, 2024, Nikia Greene

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Re: Approval of Quality Assurance Project Plan, 2024 [QAPP] – Butte Mine Flooding Operable Unit, Long-Term Monitoring Program; dated November 30, 2023, Nikia Greene

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Re: Comments on: Berkeley Pit and Discharge Pilot Project, Quarterly Pilot Project Report, Third Quarter 2023, dated December 20, 2023, Nikia Greene

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BMFOU Pilot Project RFC - REQUEST FOR CHANGE, Nikia Greene and Daryl Reed

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Butte Priority Soils Operable Unit (BPSOU) Draft Final Quarterly Operations and Maintenance Report Butte Treatment Lagoon System – Third Quarter 2024., Dave Griffis

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Submittal of Operations and Maintenance Manual for the Horseshoe Bend Water Treatment Plant, Dave Griffis and Mark Thompson

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Repository and Haul Route Geotechnical Pre-Design Investigation (PDI) Work Plan, Jacobs Engineering Group

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Repository and Proposed Haul Route – Silver Bow Creek Conservation Area Quality Assurance Project Plan, Jacobs Engineering Group

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Approved Butte Priority Soils Operable Unit (BPSOU) Unreclaimed and Insufficiently Reclaimed Sites Request for Change 2023-02, Mike McAnulty

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Approved Butte Priority Soils Operable Unit (BPSOU) Unreclaimed and Insufficiently Reclaimed Sites Request for Information 2022-01, Mike McAnulty

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Butte Priority Soils Operable Unit (BPSOU) Butte Hill Revegetation Specifications (BHRS), Mike McAnulty