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Submissions from 2024

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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 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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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 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 (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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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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Medical Monitoring Working Group Focused Call Summaries, Mike McAnulty

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Medical Monitoring Working Group Focused Call Summary Amendment, Mike McAnulty

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Medical Monitoring Working Group Meeting Minutes, Mike McAnulty

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2024 Draft Final Insufficiently Reclaimed Sites Quality Assurance Project Plan (QAPP), Pioneer Technical Services, Inc.

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2024 Draft Final Silver Bow Creek Conservation Area Repository Data Gap Quality Assurance Project Plan (QAPP), Pioneer Technical Services, Inc.

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2024 Draft Final Unreclaimed Sites Quality Assurance Project Plan (QAPP), Pioneer Technical Services, Inc.

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Draft Final 2023 Residential Metals Abatement Program (RMAP) Whitehall Borrow Submittal #2, Pioneer Technical Services, Inc.

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Draft Final 2024 Butte Priority Soils Operable Unit Helehan Borrow Submittal #2, Pioneer Technical Services, Inc.

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Draft Final 2024 Butte Priority Soils Operable Unit Type B Borrow Material Submittal #2, Pioneer Technical Services, Inc.

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Final 2023 Butte Priority Soils Operable Unit Type B Borrow Material Submittal #1, Pioneer Technical Services, Inc.

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Final 2024 Butte Priority Soils Operable Unit Type B Borrow Material Submittal #2, Pioneer Technical Services, Inc.

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Final 2024 Residential Metals Abatement Program (RMAP) Whitehall Borrow Submittal #2, Pioneer Technical Services, Inc.

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Final 2024 Residential Metals Abatement Program (RMAP) Whitehall Borrow Submittal #2, Pioneer Technical Services, Inc.

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Re: Approval letter for the Butte Priority Soils Operable Unit (BPSOU) Draft Final 2024 Type B Borrow Material Submittal #2 (dated February 14, 2024), Molly Roby

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Re: Comments for the Butte Priority Soils Operable Unit (BPSOU) Butte Reclamation Evaluation System (BRES) Draft 2023 BRES Field Evaluation Summary Report and Technical Recommendations Proposal (dated November 15, 2023) and 2023 Corrective Action Plans for Reclaimed Sites (dated January 31, 2024), Molly Roby

Submissions from 2023

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Comment Letter for Draft BPSOU Uncontrolled Surface Flow Areas Remedial Design (RD) Work Plan and Draft BPSOU Uncontrolled Surface Flow Areas Pre-Design Investigation (PDI) Work Plan (dated August 31, 2023), 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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September 2023 Monthly Activity Report for BNSF and Union Pacific Butte Priority Soils Operating Unit Unilateral Administrative Order-Docket No. CERCLA 08-2011-0011 KJ 2399019*00, Doug Brannan P.E.

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Subject: BNSF and Union Pacific Butte Priority Soils Operating Unit Activity Report - August 2023 Unilateral Administrative Order-Docket No. CERCLA 08-2011-0011 KJ 2399019*00, Doug Brannan P.E.

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Subject: BNSF and Union Pacific Butte Priority Soils Operating Unit Activity Report - July 2023 Unilateral Administrative Order-Docket No. CERCLA 08-2011-0011 KJ 2399019*00, Doug Brannan P.E.

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2022 Stormwater BMPs Repair, Inspection Report, and Maintenance Work Plan BNSF Railway Company and Union Pacific Railroad Company Butte Priority Soils Operable Unit KJ 2299019.00, Doug Brannan P.E. and Kennedy Jenks

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Approved Butte Reduction Works (BRW) Phase III Quality Assurance Project Plan (QAPP) Request for Change BRW-2023-01, Josh Bryson

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Approved Butte Reduction Works (BRW) Smelter Area Mine Waste Remediation and Contaminated Groundwater Hydraulic Control Site Quality Assurance Project Plan (QAPP) for Microbial Analysis and Biotreatability; Request for Change BRW-2023-02, Josh Bryson

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Butte Reduction Works (BRW) Phase III Quality Assurance Project Plan (QAPP) Request for Change BRW-2023-01, Josh Bryson

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Butte Reduction Works (BRW) Phase III Quality Assurance Project Plan (QAPP) Request for Change BRW-2023-03, Josh Bryson

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Final Butte Reduction Works (BRW) Phase III Quality Assurance Project Plan (QAPP) Request for Change BRW-2023-03, Josh Bryson

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Silver Bow Creek Butte Area NPL Site 1st 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 1st 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 2024 Draft Final Butte Priority Soils Operable Unit Interim Site-Wide Groundwater Monitoring Quality Assurance Project Plan. Consent Decree - Civil Action No. CV 89-039-BU-SHE, Josh Bryson

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Silver Bow Creek Butte Area NPL Site 2nd 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 2nd 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 3rd 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 Fall Semi-Annual 2022 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 Spring 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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Remedial Action Work Plan - East Middle School, Environmental Protection Agency

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Residential Metals Abatement Program Investigation Summary Report (Non-Residential Parcels – Indoor Dust) Butte High School, Environmental Protection Agency

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2023 Residential Metals Abatement Program (RMAP) Field Sampling Plan (FSP) – Indoor Dust – Group 9 - Montana Technological University (Prospector Residence Hall), Environmental Resource Management (ERM)

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2023 Residential Metals Abatement Program (RMAP) Field Sampling Plan (FSP) – Interior Soils - Silver Bow Montessori, Environmental Resource Management (ERM)

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

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

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

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Draft - Residential Metals Abatement Program Investigation Summary Report (Non-Residential Parcels – Indoor Dust) Monroe Head Start Preschool, Environmental Resource Management (ERM)

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

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Residential Metals Abatement Program – Interior School Dust – Remedial Action Work Plan – East Middle School, Environmental Resource Management (ERM)

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Residential Metals Abatement Program Investigation Summary Report (Non-Residential Parcels – Indoor Dust) - Aware Early Head Start, Environmental Resource Management (ERM)

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Residential Metals Abatement Program Investigation Summary Report (Non-Residential Parcels – Indoor Dust) - Aware Early Head Start, Environmental Resource Management (ERM)

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Residential Metals Abatement Program Investigation Summary Report (Non-Residential Parcels – Indoor Dust) - Aware Early Head Start, Environmental Resource Management (ERM)

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Residential Metals Abatement Program Investigation Summary Report (Non-Residential Parcels – Indoor Dust) Aware Early Head Start, Environmental Resource Management (ERM)

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Residential Metals Abatement Program Investigation Summary Report (Non-Residential Parcels – Indoor Dust) Aware Early Head Start, Environmental Resource Management (ERM)

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

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

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

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Residential Metals Abatement Program Investigation Summary Report (Non-Residential Parcels – Indoor Dust) - Butte High 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) - Former Hawthorne School, Environmental Resource Management (ERM)

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

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

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

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

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

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

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

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Residential Metals Abatement Program Investigation Summary Report (Non-Residential Parcels – Indoor Dust) - Lincoln Head Start, Environmental Resource Management (ERM)

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Residential Metals Abatement Program Investigation Summary Report (Non-Residential Parcels – Indoor Dust) Lincoln Head Start, Environmental Resource Management (ERM)

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

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

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

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Residential Metals Abatement Program Investigation Summary Report (Non-Residential Parcels – Indoor Dust) - Monroe Head Start Preschool, Environmental Resource Management (ERM)

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Residential Metals Abatement Program Investigation Summary Report (Non-Residential Parcels – Indoor Dust) Monroe Head Start Preschool, Environmental Resource Management (ERM)

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

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

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

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

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

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

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

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

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

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Residential Metals Abatement Program Investigation Summary Report (Non-Residential Parcels – Indoor Soil) - Silver Bow Montessori, Environmental Resource Management (ERM)

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2021 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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Final Revised Residential Metals Abatement Program (RMAP) (Non-Residential Parcels) 2021 DATA SUMMARY REPORT (DSR), Environmental Standards, Inc. and Pioneer Technical Services, Inc.

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Approval for the Butte Priority Soils Operable Unit (BPSOU) 2023 Residential Metals Abatement Program Stodden Park Soil Remedial Action Work Plan (RAWP) (dated August 8, 2023), Nikia Greene