Most Recent Additions* | Digital Commons @ Montana Tech

Skip to main content

Most Recent Additions*

Butte Medical Monitoring Working Group Meeting
Mike McAnulty and Eric Hassler

Final Butte Treatment Lagoons (BTL) Groundwater Treatment System Routine Operations, Maintenance, and Monitoring (OM&M) Plan
Pioneer Technical Services, Inc.

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

Draft Final Quarterly Operations and Maintenance Report: Butte Treatment Lagoon System – Third Quarter 2025
Pioneer Technical Services, Inc.

Re: Comment Letter for Butte Priority Soils Operable Unit (BPSOU) Draft Interim Site-Wide Surface Water Monitoring Quality Assurance Project Plan (QAPP) (dated November 24, 2025)
Emma Rott

Re: Comment Letter for Butte Priority Soils Operable Unit (BPSOU) Draft 2026 Interim Site-Wide Groundwater Monitoring Quality Assurance Project Plan (QAPP) (dated November 18, 2025)
Emma Rott

Re: Approval letter for the Revised Draft Final Annual Operations and Maintenance (O&M) Report: Butte Treatment Lagoon (BTL) System - 2023 (dated October 29, 2025)
Emma Rott

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

Revised Draft Final 2022 Unreclaimed Sites Sampling: UR-22 Site Evaluation Summary Report
Pioneer Technical Services, Inc.

Revised Draft Final 2022 Unreclaimed Sites Sampling: UR-06 Site Evaluation Summary Report
Pioneer Technical Services, Inc.

Draft Final 2022 Insufficiently Reclaimed Sites Sampling: BRES No. 96 – Washoe Dump Site Evaluation Summary Report
Pioneer Technical Services, Inc.

Draft Final 2022 Insufficiently Reclaimed Sites Sampling: BRES No. 50 – Zelia Site Evaluation Summary Report
Pioneer Technical Services, Inc.

Draft Final 2022 Insufficiently Reclaimed Sites Sampling: BRES No. 16 Site Evaluation Summary Report
Pioneer Technical Services, Inc.

Revised Draft Final 2022 Unreclaimed Sites Sampling: UR-12 Site Evaluation Summary Report
Pioneer Technical Services, Inc.

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

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

Re: Approval letter for the Revised Butte Priority Soils Operable Unit (BPSOU) Butte Treatment Lagoons (BTL) Groundwater Treatment System Annual Operations, Maintenance, and Monitoring (OM&M) Plan – 2023 (dated October 29, 2025)
Emma Rott

Re: Approval Letter for the Butte Priority Soils Operable Unit Clark Tailings Consolidated Waste Management Area 2019-2023 Data Summary Report and Response to EPA Comments (dated September 24, 2025)
Emma Rott

Re: Comment letter for the Butte Priority Soils Operable Unit (BPSOU) Butte Treatment Lagoons (BTL) Groundwater Treatment System Quarterly Operation and Maintenance Report – Quarter 2 2025 (dated September 30, 2025)
Emma Rott

Re: Conditional Approval Letter for the Final Butte Mine Waste Repository Geotechnical Investigation Work Plan (dated November 14, 2025)
Emma Rott

*Updated as of 01/06/26.