Re: Approval Letter For The Butte Priority Soils Operable Unit Draft Final Reclamation Improvement Field Sampling And Investigation Plan: Bres No. 129 – Heaney Dump,
2026
Environmental Protection Agency
Re: Approval Letter For The Butte Priority Soils Operable Unit Draft Final Reclamation Improvement Field Sampling And Investigation Plan: Bres No. 129 – Heaney Dump, Molly Roby
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Re: Approval Letter For The Butte Priority Soils Operable Unit Draft Final Reclamation Improvement Field Sampling And Investigation Plan: Bres No. 46 – Missoula Mine,
2026
Environmental Protection Agency
Re: Approval Letter For The Butte Priority Soils Operable Unit Draft Final Reclamation Improvement Field Sampling And Investigation Plan: Bres No. 46 – Missoula Mine, Molly Roby
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Re: Approval Letter For The Butte Priority Soils Operable Unit Draft Final Insufficiently Reclaimed Sites Field Sampling And Investigation Plan: Bres No. 11 – Magna Charta Lessee Dumps,
2026
Environmental Protection Agency
Re: Approval Letter For The Butte Priority Soils Operable Unit Draft Final Insufficiently Reclaimed Sites Field Sampling And Investigation Plan: Bres No. 11 – Magna Charta Lessee Dumps, Molly Roby
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Re: Approval Letter For The Butte Priority Soils Operable Unit Draft Final Insufficiently Reclaimed Sites Field Sampling And Investigation Plan: Bres No. 1503 – Hornet Addition,
2026
Environmental Protection Agency
Re: Approval Letter For The Butte Priority Soils Operable Unit Draft Final Insufficiently Reclaimed Sites Field Sampling And Investigation Plan: Bres No. 1503 – Hornet Addition, Molly Roby
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
2026 Final Bpsou Backfill And Cover Material Quality Assurance Project Plan (Qapp),
2026
Montana Tech Library
2026 Final Bpsou Backfill And Cover Material Quality Assurance Project Plan (Qapp), Pioneer Technical Services, Inc.
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Butte Priority Soils Operable Unit Final Reclamation Improvement Field Sampling And Investigation Plan: Bres No. 75 – National Dump,
2026
Atlantic Richfield Company
Butte Priority Soils Operable Unit Final Reclamation Improvement Field Sampling And Investigation Plan: Bres No. 75 – National Dump, Mike Mcanulty
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Butte Priority Soils Operable Unit Final Reclamation Improvement Field Sampling And Investigation Plan: Bres No. 57 – Little Mina-1,
2026
Atlantic Richfield Company
Butte Priority Soils Operable Unit Final Reclamation Improvement Field Sampling And Investigation Plan: Bres No. 57 – Little Mina-1, Mike Mcanulty
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Butte Priority Soils Operable Unit Final Reclamation Improvement Field Sampling And Investigation Plan: Bres No. 180 – Tullamore Dump,
2026
Atlantic Richfield Company
Butte Priority Soils Operable Unit Final Reclamation Improvement Field Sampling And Investigation Plan: Bres No. 180 – Tullamore Dump, Mike Mcanulty
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Butte Priority Soils Operable Unit Final Reclamation Improvement Field Sampling And Investigation Plan: Bres No. 160s – Syndicate Pit Dumps,
2026
Atlantic Richfield Company
Butte Priority Soils Operable Unit Final Reclamation Improvement Field Sampling And Investigation Plan: Bres No. 160s – Syndicate Pit Dumps, Mike Mcanulty
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Butte Priority Soils Operable Unit Final Reclamation Improvement Field Sampling And Investigation Plan: Bres No. 68 – Little Mina-2,
2026
Atlantic Richfield Company
Butte Priority Soils Operable Unit Final Reclamation Improvement Field Sampling And Investigation Plan: Bres No. 68 – Little Mina-2, Mike Mcanulty
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Butte Priority Soils Operable Unit Final Reclamation Improvement Field Sampling And Investigation Plan: Bres No. 171 – Blaine Center,
2026
Montana Tech Library
Butte Priority Soils Operable Unit Final Reclamation Improvement Field Sampling And Investigation Plan: Bres No. 171 – Blaine Center, Pioneer Technical Services, Inc.
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Butte Priority Soils Operable Unit Final Reclamation Improvement Field Sampling And Investigation Plan: Bres No. 9 – Clark Street Dump,
2026
Atlantic Richfield Company
Butte Priority Soils Operable Unit Final Reclamation Improvement Field Sampling And Investigation Plan: Bres No. 9 – Clark Street Dump, Mike Mcanulty
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Re: Comment Letter For Butte Priority Soils Operable Unit (Bpsou) 2025 Surface Water Compliance Evaluation Technical Memorandum (Dated June 29, 2026),
2026
Environmental Protection Agency
Re: Comment Letter For Butte Priority Soils Operable Unit (Bpsou) 2025 Surface Water Compliance Evaluation Technical Memorandum (Dated June 29, 2026), Emma Rott
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Re: Approval Letter For The Butte Priority Soils Operable Unit (Bpsou) Final 2026 Interim Site- Wide Surface Water Monitoring Quality Assurance Project Plan (Qapp) (Dated August 28, 2026),
2026
Environmental Protection Agency
Re: Approval Letter For The Butte Priority Soils Operable Unit (Bpsou) Final 2026 Interim Site- Wide Surface Water Monitoring Quality Assurance Project Plan (Qapp) (Dated August 28, 2026), Emma Rott
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Re: Approval Letter For The Final 2026 Interim Site-Wide Groundwater Monitoring Quality Assurance Project Plan (Dated August 28, 2026),
2026
Environmental Protection Agency
Re: Approval Letter For The Final 2026 Interim Site-Wide Groundwater Monitoring Quality Assurance Project Plan (Dated August 28, 2026), Emma Rott
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Re: Comment Letter For Butte Priority Soils Operable Unit (Bpsou) Draft 2025 Site-Wide Surface Water Monitoring Data Summary Report (Dated May 29, 2026),
2026
Environmental Protection Agency
Re: Comment Letter For Butte Priority Soils Operable Unit (Bpsou) Draft 2025 Site-Wide Surface Water Monitoring Data Summary Report (Dated May 29, 2026), Emma Rott
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Re: Comment Letter For Butte Priority Soils Operable Unit (Bpsou) Draft 2025 Groundwater Monitoring Data Summary Report January – December 2025 (Dated May 29, 2026),
2026
Environmental Protection Agency
Re: Comment Letter For Butte Priority Soils Operable Unit (Bpsou) Draft 2025 Groundwater Monitoring Data Summary Report January – December 2025 (Dated May 29, 2026), Emma Rott
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Re: Comment Letter For Butte Priority Soils Operable Unit (Bpsou) Butte Reduction Works Smelter Area Intermediate 60% Remedial Design Submittal (Dated May 19, 2026),
2026
Environmental Protection Agency
Re: Comment Letter For Butte Priority Soils Operable Unit (Bpsou) Butte Reduction Works Smelter Area Intermediate 60% Remedial Design Submittal (Dated May 19, 2026), Emma Rott
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Re: Approval Letter For The Butte Priority Soils Operable Unit (Bpsou) Clark Tailings Consolidated Waste Management Area (Ctcwma) Site Investigation Quality Assurance Project Plan (Qapp) Revision 0 (2026) Request For Change (Rfc)-2026-001 (Dated September 8, 2026),
2026
Environmental Protection Agency
Re: Approval Letter For The Butte Priority Soils Operable Unit (Bpsou) Clark Tailings Consolidated Waste Management Area (Ctcwma) Site Investigation Quality Assurance Project Plan (Qapp) Revision 0 (2026) Request For Change (Rfc)-2026-001 (Dated September 8, 2026), Emma Rott
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Re: Butte Priority Soils Operable Unit Final Butte Priority Soils Operable Unit Unreclaimed Sites Field Sampling And Investigation Plan: Ur-53 – South Of Surprise Dump,
2026
Atlantic Richfield Company
Re: Butte Priority Soils Operable Unit Final Butte Priority Soils Operable Unit Unreclaimed Sites Field Sampling And Investigation Plan: Ur-53 – South Of Surprise Dump, Mike Mcanulty
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
