Now Available for Public Review and Comment: Draft Former Asarco East Helena Facility Corrective Measures Study (CMS) Report

The Corrective Measures Study (CMS) Report, prepared by the Montana Environmental Trust Group, LLC (METG), Trustee of the Montana Environmental Custodial Trust, consists of an 88-page document followed by 6 appendices, 149 figures and 42 tables.  Due to the size of the CMS Report, it has been uploaded to the METG website in the following ten (10) separate links or installments.  Please note that it may take a few minutes to access the larger files.

  1. CMS Report
  2. Appendix A—Summary of Groundwater Modeling Supporting Corrective Measures Study
  3. Appendix B—Tier II Source Control Measure/Groundwater Remedy Evaluation—Phase 2 Results and Recommendations
  4. Appendix C—Summary of Soil Removal Alternatives Evaluation and Mining Visualization System Model Development
  5. Appendix D—Summary of Supplemental RFI Soil Sampling Results for Undeveloped Lands
  6. Appendix E—Human Health and Ecological Risk Assessment
  7. Appendix F—Slag Pile Cover Concepts Technical Memorandum
  8. Appendix G—Lead Education and Abatement Program Administrative Boundary
  9. Tables referenced in the CMS Report
  10. Figures referenced in the CMS Report

EPA has issued the CMS Report for public review and comment.  There will be a public meeting on Wednesday, April 11th from 6:30 to 8:30 pm at the Custodial Trust’s offices in East Helena (325 Manlove Street, East Helena) to review the CMS Report.

For more invitation, please see the Notice and Invitation

Fact Sheet: East Helena Cleanup—A Model of Environmental Protection and Sustainability

This Fact Sheet was prepared by the U.S. Environmental Protection Agency (EPA) and the Montana Environmental Trust Group, LLC, Trustee of the Montana Environmental Custodial Trust. It covers the environmental challenge of the former ASARCO Smelter in East Helena, the cleanup solution, the results, and what comes next.

Download this 9.48 MB PDF

Final Corrective Measures Study Work Plan

Now Available:
October 22, 2015 Former ASARCO East Helena Facility Final Corrective Measures Study Work Plan

Download this file as a 50MB PDF

Final Addendum to Interim Measures Work Plan—2015 and 2016

Now Available:
March 23, 2016 Former ASARCO East Helena Facility Final Addendum to Interim Measures Work Plan—2015 and 2016

Download this file as a 8.4MB PDF

Update on Corrective Measures Studies Activities

Now Available:
March 3, 2016 Former ASARCO East Helena Facility Update on Corrective Measures Studies Activities

Download this file as a 12MB PDF

Draft Addendum to Interim Measures Work Plan—2015 and 2016

Now Available:
January 14, 2016 Former ASARCO East Helena Facility Draft Addendum to Interim Measures Work Plan—2015 and 2016

Download this file as a 12.5MB PDF

EHECTIC Meeting Slides

Now Available:
September 30, 2015 EHECTIC Meeting Slides

Download this file as a 6.5MB PDF

Final Interim Measures Work Plan—2015 and 2016

Now Available:
May 29, 2015 Former ASARCO East Helena Facility Draft Interim Measures Work Plan—2015 and 2016

Download this file as a 65MB PDF File

Public Meeting Presentation

Comments on Draft 2015-2016 Interim Measures Work Plan
Due to EPA by March 6, 2015 (burns.betsy@epa.gov)

Download the Slides in PPTX Format (28MB)

Public Meeting Invitation

The US Environmental Protection Agency (EPA) and the Montana Environmental Trust Group, Trustee of the Montana Environmental Custodial Trust, are sponsoring a Public Meeting and Open House on February 24, 2015 to review the Draft 2015-2016 Interim Measures Work Plan, which describes cleanup plans to be implemented at the former ASARCO Smelter in 2015-2016.

For more information, please download the February 24th Public Meeting Notice and Invitation.