Re: Comment Letter For The Draft Final Butte Priority Soils Operable Unit (Bpsou) Insufficiently Reclaimed Sites Bres No. 30 – Atlantic 1 Remedial Action Work Plan (Rawp) (Dated March 24, 2026),
2026
Environmental Protection Agency
Re: Comment Letter For The Draft Final Butte Priority Soils Operable Unit (Bpsou) Insufficiently Reclaimed Sites Bres No. 30 – Atlantic 1 Remedial Action Work Plan (Rawp) (Dated March 24, 2026), Molly Roby
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Re: Approval Letter For The Butte Priority Soils Operable Unit (Bpsou) Revised Draft Final Insufficiently Reclaimed Sites Joesphine Shaft (Bres No. 37) – Remedial Action Work Plan (Rawp) (Dated March 24, 2026),
2026
Environmental Protection Agency
Re: Approval Letter For The Butte Priority Soils Operable Unit (Bpsou) Revised Draft Final Insufficiently Reclaimed Sites Joesphine Shaft (Bres No. 37) – Remedial Action Work Plan (Rawp) (Dated March 24, 2026), Molly Roby
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Re: Approval Letter For The Butte Priority Soils Operable Unit (Bpsou) Final Unreclaimed Sites Field Sampling Plan (Fsp) Package #7: Ur-01, Ur-12, Ur-03, Ur-04, Ur-15, And Ur-17 Amendment (Dated April 28, 2026),
2026
Environmental Protection Agency
Re: Approval Letter For The Butte Priority Soils Operable Unit (Bpsou) Final Unreclaimed Sites Field Sampling Plan (Fsp) Package #7: Ur-01, Ur-12, Ur-03, Ur-04, Ur-15, And Ur-17 Amendment (Dated April 28, 2026), Molly Roby
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Final Unreclaimed Sites Quality Assurance Project Plan (Qapp),
2026
Montana Tech Library
Final Unreclaimed Sites Quality Assurance Project Plan (Qapp), Pioneer Technical Services, Inc.
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Butte Priority Soils Operable Unit (Bpsou) Final Unreclaimed Sites Field Sampling Plan (Fsp) Package #7: Ur-01, Ur-12, Ur-03, Ur-04, Ur-15, And Ur-17 Amendment,
2026
Atlantic Richfield Company
Butte Priority Soils Operable Unit (Bpsou) Final Unreclaimed Sites Field Sampling Plan (Fsp) Package #7: Ur-01, Ur-12, Ur-03, Ur-04, Ur-15, And Ur-17 Amendment, Mike Mcanulty
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Final Insufficiently Reclaimed Sites Quality Assurance Project Plan (Qapp),
2026
Montana Tech Library
Final Insufficiently Reclaimed Sites Quality Assurance Project Plan (Qapp), Pioneer Technical Services, Inc.
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Re: Approval Letter For The Butte Priority Soils Operable Unit (Bpsou) Draft Final Whitehall Borrow Submittal #3 (Dated March 27, 2026),
2026
Environmental Protection Agency
Re: Approval Letter For The Butte Priority Soils Operable Unit (Bpsou) Draft Final Whitehall Borrow Submittal #3 (Dated March 27, 2026), Molly Roby
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Draft Uniform Federal Policyquality Assurance Project Plan Addendum,
2026
Montana Tech Library
Draft Uniform Federal Policyquality Assurance Project Plan Addendum, Hydrogeologic, Inc.
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Re: Approval Letter For The Butte Priority Soils Operably Unit (Bpsou) Revised Draft Final Quarterly Operations And Maintenance Report: Butte Treatment Lagoon System (Btl) Second Quarter 2025 (Dated April 10, 2026),
2026
Environmental Protection Agency
Re: Approval Letter For The Butte Priority Soils Operably Unit (Bpsou) Revised Draft Final Quarterly Operations And Maintenance Report: Butte Treatment Lagoon System (Btl) Second Quarter 2025 (Dated April 10, 2026), Emma Rott
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Re: Approval Letter For The 2024 Butte Priority Soils Operable Unit (Bpsou) Stormwater Evaluation And Maintenance Report (Dated April 8, 2026),
2026
Environmental Protection Agency
Re: Approval Letter For The 2024 Butte Priority Soils Operable Unit (Bpsou) Stormwater Evaluation And Maintenance Report (Dated April 8, 2026), Emma Rott
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Re: Conditional Approval Letter For Diggings East 95 % Remedial Design Package Submittal (Dated March 25, 2006), The Silver Bow Creek Conservation Area (Sbcca) – 95 Percent Programmatic Technical Specifications Submittal (Dated March 25, 2026), The Butte Priority Soils Operable Unit (Bpsou) Sbcca Operations And Maintenance (O&M) Plan (Dated March 24, 2026), And The Sbcca Final Principles For A Greener Cleanup Report (Dated February 4, 2026), Emma Rott
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Re: Approval Letter For The 2022 Butte Priority Soils Operable Unit (Bpsou) Stormwater Evaluation And Maintenance Report (Dated April 8, 2026),
2026
Environmental Protection Agency
Re: Approval Letter For The 2022 Butte Priority Soils Operable Unit (Bpsou) Stormwater Evaluation And Maintenance Report (Dated April 8, 2026), Emma Rott
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Re: Approval Letter For The 2023 Butte Priority Soils Operable Unit (Bpsou) Stormwater Evaluation And Maintenance Report (Dated April 8, 2026),
2026
Environmental Protection Agency
Re: Approval Letter For The 2023 Butte Priority Soils Operable Unit (Bpsou) Stormwater Evaluation And Maintenance Report (Dated April 8, 2026), Emma Rott
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Revised Draft Final Butte Priority Soils Operable Unit (Bpsou) Unreclaimed (Ur) Sites New And Mahoney (Ur-23) Construction Completion Report (Ccr),
2026
Montana Tech Library
Revised Draft Final Butte Priority Soils Operable Unit (Bpsou) Unreclaimed (Ur) Sites New And Mahoney (Ur-23) Construction Completion Report (Ccr), Pioneer Technical Services, Inc.
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Revised Draft Final Butte Priority Soils Operable Unit (Bpsou) Unreclaimed (Ur) Sites New And Mahoney (Ur-23) Construction Completion Report (Ccr),
2026
Montana Tech Library
Revised Draft Final Butte Priority Soils Operable Unit (Bpsou) Unreclaimed (Ur) Sites New And Mahoney (Ur-23) Construction Completion Report (Ccr), Pioneer Technical Services, Inc.
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Re: Comment Letter For The Silver Bow Creek/Butte Area Npl Site Butte Priority Soils Operable Unit, 60% Remedial Design Documents For The Blacktail Creek Area Groundwater Hydraulic Control System (Dated March 2, 2026),
2026
Environmental Protection Agency
Re: Comment Letter For The Silver Bow Creek/Butte Area Npl Site Butte Priority Soils Operable Unit, 60% Remedial Design Documents For The Blacktail Creek Area Groundwater Hydraulic Control System (Dated March 2, 2026), Emma Rott
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Final 2022 Insufficiently Reclaimed Sites Sampling: Bres No. 96 – Washoe Dump Site Evaluation Summary Report,
2026
Montana Tech Library
Final 2022 Insufficiently Reclaimed Sites Sampling: Bres No. 96 – Washoe Dump Site Evaluation Summary Report, Pioneer Technical Services, Inc.
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Draft Final Butte Priority Soils Operable Unit Unreclaimed Sites: Ur-03 Construction Completion Report,
2026
Montana Tech Library
Draft Final Butte Priority Soils Operable Unit Unreclaimed Sites: Ur-03 Construction Completion Report, Pioneer Technical Services, Inc.
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Draft Final Butte Priority Soils Operable Unit Unreclaimed Sites: Ur-03 Construction Completion Report,
2026
Montana Tech Library
Draft Final Butte Priority Soils Operable Unit Unreclaimed Sites: Ur-03 Construction Completion Report, Pioneer Technical Services, Inc.
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Butte Priority Soils Operable Unit (Bpsou) 2026 Monthly Progress Report. Consent Decree For The Butte Priority Soils Operable Unit. Civil Action No. Cv 89-039-Bu-Seh,
2026
Management Service Company, ARCO
Butte Priority Soils Operable Unit (Bpsou) 2026 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.
