BPSOU RD/RA Meeting

On December 3, 2024, from 9:00 am to 11:00 am, Atlantic Richfield, EPA, Butte Silver Bow County, Montana DEQ, and the Montana Natural Resource Damage Program invite the public to observe the Butte Priority Soils Operable Unit (BPSOU) Remedial Design/Remedial Action Progress Meeting (RDRA Progress Meeting) in a Teams event by computer or smart phone. Because you will be watching a working meeting, there will be no method for asking questions or making statements.

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Meeting ID: 233 705 744 012

Passcode: EnZZfg

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+1 202-991-0477,,601891240# United States, Washington

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Phone conference ID: 601 891 240#

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Tenant key: sip:[email protected]

Video ID: 111 328 220 1

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This meeting may be recorded. If the meeting is recorded, it will be announced via a banner showing “this meeting is being recorded.” Participation in a recorded meeting will be deemed as consent to be recorded. Meeting recordings may be official agency records subject to appropriate policy, rules and regulations.

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Agenda:

General:

1. Introduction and Expectations (Mike)
2. Safety Moment (Aspect)

Construction:

3. Lexington Wetlands (Kevin)

• Tree Vandalism (Josh)
• Restroom
• Electrical Service
• Entry Sign
• Fencing

4. Grove Gulch (Kevin)

• Diversion and Bypass Structure
• Forebay
• Outlet Structure
• Winterization

Pre-Mobilization:

5. BRW Phase II D&D (Kevin)
   • Bid Update
   • Planning Documents
   • Mobilization Schedule
6. Casey Street Water Line (Karen)
   • Railroad ROW Encroachment and Casing – Variance Request Update
   • Plan Finalization

Design and Investigation:

7. Agency Review Update (Emma)
   • Hydrology Report
   • Sitewide Groundwater Model
   • Others
8. Buffalo Gulch (Gil/Scott/Emily)
   • General Update
9. Diggings East (Joe/Ross)
   • General Update
10. Northside Tailings (Karen)
    • General Update
11. BPSOU Pump Station (Karen)
    • General Update
12. Butte Reduction Works (Karen)
    • General Update
13. Groundwater Remedy Optimization (Brent/Karen)
    • Infiltration Evaluation and Leak Detection
    • BPSOU Pump Station
14. BTC Hydraulic Control (Brent)
    • PDIWP/PDIER
    • 30% Design Submittal
15. Blacktail Creek Riparian Actions (Logan/Daryl)
16. Copper Mountain (Emily)
    • DSR RTCs/Resubmittal
    • Initial Infiltration Testing Results

Planning:

17. SBCCA Program Plans (Tim/Josh)
    • Technical Specifications
    • CQAP/CMQAPP
    • OM&M Plan
    • Greener Clean-Ups
18. Repository (Josh)
    • RSS Technical Evaluations and Recommendations Report
      1. Screening Matrix
      2. Geochem PDIWP
      3. Geotechnical PDIER
      4. Conceptual Development Plans
      5. ARARs Memo
    • Materials Management Plan
19. Q1 Planning Efforts (Josh)
    • GWRO
      1. Will schedule after receipt of GW Model Comments
    • GW Interim Monitoring QAPP
      1. Poll provided
    • SBCCA Program Planning Workshop
    • Copper Mountain CSM Workshop

Other:

20. Community Engagement
21. Round Table