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Final Quarterly Operations And Maintenance Report Butte Treatment Lagoon System – First Quarter 2024, Pioneer Technical Services, Inc. Dec 2025

Final Quarterly Operations And Maintenance Report Butte Treatment Lagoon System – First Quarter 2024, Pioneer Technical Services, Inc.

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.


Re: Conditional Approval Letter For The Final Butte Mine Waste Repository Geotechnical Investigation Work Plan (Dated November 14, 2025), Emma Rott Nov 2025

Re: Conditional Approval Letter For The Final Butte Mine Waste Repository Geotechnical Investigation Work Plan (Dated November 14, 2025), Emma Rott

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.


Final Butte Priority Soils Operable Unit (Bpsou) Insufficiently Reclaimed Sites Remedial Action Work Plan (Rawp): Bres No. 104 (Colorado Dump) North Slope, Pioneer Technical Services, Inc. Nov 2025

Final Butte Priority Soils Operable Unit (Bpsou) Insufficiently Reclaimed Sites Remedial Action Work Plan (Rawp): Bres No. 104 (Colorado Dump) North Slope, Pioneer Technical Services, Inc.

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.


Butte Medical Monitoring Working Group Meeting, Mike Mcanulty, Eric Hassler Nov 2025

Butte Medical Monitoring Working Group Meeting, Mike Mcanulty, Eric Hassler

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.


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 Nov 2025

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

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.


Re: Approval Letter For The Butte Priority Soils Operable Unit (Bpsou) Unreclaimed Sites Ur-46 Temporary Best Management Practices Work Plan (Dated October 17, 2025), Molly Roby Nov 2025

Re: Approval Letter For The Butte Priority Soils Operable Unit (Bpsou) Unreclaimed Sites Ur-46 Temporary Best Management Practices Work Plan (Dated October 17, 2025), Molly Roby

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.


Final Butte Mine Waste Repository Geotechnical Investigation Work Plan, Pioneer Technical Services, Inc. Nov 2025

Final Butte Mine Waste Repository Geotechnical Investigation Work Plan, Pioneer Technical Services, Inc.

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.


2025 Field Evaluation Of Reclaimed Sites Summary Report, Butte-Silver Bow Department Of Reclamation And Environmental Services Nov 2025

2025 Field Evaluation Of Reclaimed Sites Summary Report, Butte-Silver Bow Department Of Reclamation And Environmental Services

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.


Re: Approval Letter For The Butte Priority Soils Operable Unit (Bpsou) Draft Final Insufficiently Reclaimed Sites Remedial Action Work Plan (Rawp): Bres No. 104 – (Colorado Dump) North Slope (Dated October 17, 2025), Molly Roby Nov 2025

Re: Approval Letter For The Butte Priority Soils Operable Unit (Bpsou) Draft Final Insufficiently Reclaimed Sites Remedial Action Work Plan (Rawp): Bres No. 104 – (Colorado Dump) North Slope (Dated October 17, 2025), Molly Roby

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.


Re: Medical Monitoring Working Group Meeting Minutes, Mike Mcanulty, Eric Hassler Nov 2025

Re: Medical Monitoring Working Group Meeting Minutes, Mike Mcanulty, Eric Hassler

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.


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 Nov 2025

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

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.


Draft 2026 Interim Site-Wide Groundwater Monitoring Quality Assurance Project Plan, Woodard & Curran Nov 2025

Draft 2026 Interim Site-Wide Groundwater Monitoring Quality Assurance Project Plan, Woodard & Curran

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.


Butte Priority Soils Operable Unit Clark Tailings Consolidated Waste Management Area Site Investigation Quality Assurance Project Plan (Qapp) Revision 0, Woodard & Curran Nov 2025

Butte Priority Soils Operable Unit Clark Tailings Consolidated Waste Management Area Site Investigation Quality Assurance Project Plan (Qapp) Revision 0, Woodard & Curran

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.


Draft 2026 Interim Site-Wide Surface Water Monitoring Quality Assurance Project Plan, Woodard & Curran Nov 2025

Draft 2026 Interim Site-Wide Surface Water Monitoring Quality Assurance Project Plan, Woodard & Curran

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.


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 Oct 2025

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

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.


Final Quarterly Operations And Maintenance Report Butte Treatment Lagoon System – Fourth Quarter 2024, Pioneer Technical Services, Inc. Oct 2025

Final Quarterly Operations And Maintenance Report Butte Treatment Lagoon System – Fourth Quarter 2024, Pioneer Technical Services, Inc.

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.


Revised Draft Final Annual Operations And Maintenance (O&M) Report: Butte Treatment Lagoon (Btl) System – 2023, Pioneer Technical Services, Inc. Oct 2025

Revised Draft Final Annual Operations And Maintenance (O&M) Report: Butte Treatment Lagoon (Btl) System – 2023, Pioneer Technical Services, Inc.

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.


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 Oct 2025

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

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.


Re: Approval 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 August 29, 2025), Emma Rott Oct 2025

Re: Approval 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 August 29, 2025), Emma Rott

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.


Re: Butte Priority Soils Operable Unit Final Leak Infiltration Evaluation, Josh Bryson Oct 2025

Re: Butte Priority Soils Operable Unit Final Leak Infiltration Evaluation, Josh Bryson

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.


Revised Draft Final 2022 Insufficiently Reclaimed Sites Sampling: Bres No. 32 – Corra 2 Dump Site Evaluation Summary Report, Pioneer Technical Services, Inc. Oct 2025

Revised Draft Final 2022 Insufficiently Reclaimed Sites Sampling: Bres No. 32 – Corra 2 Dump Site Evaluation Summary Report, Pioneer Technical Services, Inc.

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.


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 Oct 2025

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

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.


Revised Draft Final Butte Priority Soils Operable Unit (Bpsou) Unreclaimed Sites: Ur-08 (Anderson Shaft) Remedial Action Work Plan (Rawp), Pioneer Technical Services, Inc. Oct 2025

Revised Draft Final Butte Priority Soils Operable Unit (Bpsou) Unreclaimed Sites: Ur-08 (Anderson Shaft) Remedial Action Work Plan (Rawp), Pioneer Technical Services, Inc.

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.


Revised Draft Final 2022 Insufficiently Reclaimed Sites Sampling: Bres No. 30 – Atlantic-1 Site Evaluation Summary Report, Pioneer Technical Services, Inc. Oct 2025

Revised Draft Final 2022 Insufficiently Reclaimed Sites Sampling: Bres No. 30 – Atlantic-1 Site Evaluation Summary Report, Pioneer Technical Services, Inc.

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.


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 Oct 2025

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

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.


Revised Draft Final 2022 Unreclaimed Sites Sampling: Ur-13 Site Evaluation Summary Report, Pioneer Technical Services, Inc. Oct 2025

Revised Draft Final 2022 Unreclaimed Sites Sampling: Ur-13 Site Evaluation Summary Report, Pioneer Technical Services, Inc.

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.


Revised Draft Final 2022 Insufficiently Reclaimed Sites Sampling: Bres No. 37 – Josephine Shaft Site Evaluation Summary Report, Pioneer Technical Services, Inc. Oct 2025

Revised Draft Final 2022 Insufficiently Reclaimed Sites Sampling: Bres No. 37 – Josephine Shaft Site Evaluation Summary Report, Pioneer Technical Services, Inc.

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.


Revised Draft Final 2022 Insufficiently Reclaimed Sites Sampling: Bres No. 37 – Josephine Shaft Site Evaluation Summary Report, Pioneer Technical Services, Inc. Oct 2025

Revised Draft Final 2022 Insufficiently Reclaimed Sites Sampling: Bres No. 37 – Josephine Shaft Site Evaluation Summary Report, Pioneer Technical Services, Inc.

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.


Clark Tailings Consolidated Waste Management Area (Ctcwma) Site Investigation Draft Data Summary Report 2024 Surface Water, Groundwater, And Soil Characterization, Woodard & Curran Oct 2025

Clark Tailings Consolidated Waste Management Area (Ctcwma) Site Investigation Draft Data Summary Report 2024 Surface Water, Groundwater, And Soil Characterization, Woodard & Curran

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.


Re: Butte Priority Soil Operable Unit (Bpsou) Final Bres No.94 – Rialto Dump Reclamation Improvement (Ri) Field Sampling Plan (Fsp), Mike Mcanulty Oct 2025

Re: Butte Priority Soil Operable Unit (Bpsou) Final Bres No.94 – Rialto Dump Reclamation Improvement (Ri) Field Sampling Plan (Fsp), Mike Mcanulty

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.