ffs remedial alternatives presentation

FFS Remedial Alternatives

West Lake Landfill Community Dialogue

Framework

August 15, 2016

Terrie Boguski, Skeo Solutions

TASC

Technical Assistance Services for Communities (TASC)

Provides non-advocacy, independent technical assistance

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Agenda

Superfund remedial process at West Lake Landfill

Final Feasibility Study (FFS)

• Remedial alternatives

Discussion

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West Lake Landfill

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Superfund Remedial Process

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The Superfund Process

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Discovery

Assessment

Cleanup Decision

CleanupPost-Cleanup

Activities

Removal actions can occur any time

during the Superfund process

Final Feasibility Study (FFS)

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FS Evaluation Criteria

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Threshold1. Overall

protection of human health and the environment

2. Compliance with ARARs

Balancing 3. Long-term

effectiveness and permanence

4. Reduction of toxicity, mobility or volume

5. Short-term effectiveness

6. Implementability

7. Cost

FS Evaluation Criteria

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Modifying

8. State acceptance

9. Community acceptance

Final FS Cleanup Alternatives

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Alternatives

1. No Further Action – leave all RIM in place on site

2. Partial excavation of contaminated soil at or near the surface:• Excavation of some RIM down to a maximum depth of 16 feet depending

on level of radioactivity (level to be defined in FFS)• Excavation of RIM with concentrations above a certain radioactivity level

regardless of depth (level to be defined in FFS)• PRPs may submit additional alternatives for EPA consideration

3. Full excavation of all RIM

4. Cap In Place (Remedy selected in 2008 ROD)

Final FS Will Include

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Description of Remedial Action Objectives

Description of Applicable or Relevant and Appropriate Requirements (basically existing environmental laws and regulations)

Description of the Remedial Alternatives

Evaluation of Remedial Alternatives Against 9 Criteria

Site Specific Considerations

Implementation Challenges Odors Handling and transportation of excavated materials Control of fugitive dust Potential exposure risks for on-site workers Bird strike hazards and mitigation

Evaluation of potential impacts of a Subsurface Smoldering Event within OU-1

Evaluation of possible effects of a natural disaster such as tornado, flood or earthquake

Evaluation of mobility of RIM12

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CONTACT INFORMATION

TASC Technical Assistance Provider

Terrie Boguski, PE

(913) 780-3328

tboguski@skeo.com