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Tremont Barrel Fill - A New Cleanup Alternative?

Tremont Barrel Fill - A New Cleanup Alternative?. Blase Leven Technical Assistance Services for Communities May 20, 2011 CF/WATER Annual Meeting. No Further Action (ROD). Preliminary Assessments/ Site Inspection (PA / SI). Interim (Removal) Action.

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Tremont Barrel Fill - A New Cleanup Alternative?

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  1. Tremont Barrel Fill- A New Cleanup Alternative? Blase Leven Technical Assistance Services for Communities May 20, 2011 CF/WATER Annual Meeting

  2. No Further Action (ROD) Preliminary Assessments/ Site Inspection (PA / SI) Interim (Removal) Action Remedial Investigations/ Feasibility Study (RI / FS) No Further Action (ROD) Our Current Status Interim (Removal) Action Proposed Plan Record of Decision = Public Comment Period Remedial Design/ Remedial Action (RD / RA)

  3. Key Documents & Events • Proposed (Cleanup) Plans • May or June? 2011 – Alternative 9a (new) • Public Comment Period • June 2010 - Alternative 4a • Feasibility Study Report • July 2008 – Feb 2010 • 2006 Remedial Investigation Report • 2002 Site Investigation Summary http://www.epa.gov/region5/sites/tremont/index.htm#techdocs

  4. Remedial Alternatives • Fourteen (14) possible options considered • Two main types: • Containment of wastes • Excavation of wastes

  5. Containment Options N

  6. Containment (continued) WEST EAST Up Gradient Monitoring Well Cluster Down Gradient Monitoring Well Cluster Liquid Waste Removal Sumps Barrel Fill Cap 1075 Intertill Up Gradient Groundwater Diversion Down Gradient Groundwater Collection Trench 1050 Intertill 4-Inch 1050 Intertill Recovery Well MWs to Deeper Units

  7. Excavation Options • Removal of drums, uncontainerized wastes, and liquids • Hazardous materials disposed of off site • Non-hazardous materials treated and disposed of on site or off site, depending on option • Backfill and re-grading of area

  8. Proposed Cleanup Alternative – 4a

  9. Proposed Cleanup Alternative – 9a Proposed Cleanup Alternative – 4a

  10. Proposed Cleanup Alternative – 9a

  11. Preliminary Evaluation of New to Previous Options To be finalized in Proposed Plan Threshold Balancing Modifying • - State Acceptance • - Community Acceptance Based on upcoming Public Comment Period ?

  12. Potential Technical Issues • Principal Threat Wastes • Definition • Drummed non-liquid wastes (to be left on site) • Liquids and sludge • Ground water • May require future cleanup under separate plan, if not adequately addressed • Costs • More waste handling, treatment/disposal; post closure care • Design of Hazardous Waste Management Cell • Previous Public and State Input

  13. What Next? • Release of Proposed Plan • May or June 2011 • Expected to contain “final” plan for Alternative 9a • Alternative 9a as we currently know it may change to address technical issues • Public Comment Period • 30 or 60 days • Your chance to provide input!

  14. EPA Points of Contact • Patti Krause, EPA Community Involvement Coordinator • Krause.Patricia@epa.gov (312) 886-9506 • Jena Sleboda Braun, new EPA Remedial Project Manager • Sleboda.Jena@epa.gov (312) 886-0272

  15. Questions? • Free Technical Assistance to • Citizens for Wise Approaches Toward Environmental Resources (CF/WATER) • Blase Leven • Technical Assistance Services for Communities (TASC) Program • baleven@ksu.edu; 785-532-0780 • Please cc Jeff Briner, President CF/WATER, jeffbriner@bizwoh.rr.com

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