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EPA Superfund Record of Decision · PDF fileEPA Superfund Record of Decision: ... 2.7.3 Risk...

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  • EPA/ROD/R03-04/6092004

    EPA Superfund

    Record of Decision:

    NORFOLK NAVAL BASE (SEWELLS POINT NAVAL COMPLEX)EPA ID: VA6170061463OU 08NORFOLK, VA09/23/2004

  • Final Record of Decision

    Site 22: Camp Allen Salvage Yard

    Naval Station Norfolk

    Norfolk, Virginia

    Prepared by

    Department of the Navy

    Atlantic Division Naval Facilities Engineering Command

    Norfolk, Virginia

    September 2004

  • TABLE OF CONTENTS Section Page No. Acronyms and Abbreviations....................................................................................................................................................................... iii 1.0 Declaration........................................................................................................................................................................................1-1

    1.1 Site Name and Location....................................................................................................................................................1-1 1.2 Statement of Basis and Purpose.......................................................................................................................................1-1 1.3 Assessment of the Site.......................................................................................................................................................1-1 1.4 Description of the Selected Remedy...............................................................................................................................1-1 1.5 Statutory Determination....................................................................................................................................................1-2 1.6 Record of Decision Data Certification Checklist .........................................................................................................1-2

    2.0 Decision Summary ..........................................................................................................................................................................2-1

    2.1 Site Name, Location, and Description............................................................................................................................2-1 2.2 Site History and Enforcement Activities........................................................................................................................2-1

    2.2.1 Site History..........................................................................................................................................................2-1 2.2.2 History of Previous Investigations and Removals ........................................................................................2-1 2.2.3 Enforcement Activities......................................................................................................................................2-4

    2.3 Highlights of Community Participation .........................................................................................................................2-4 2.4 Scope and Role of the Remedy........................................................................................................................................2-4 2.5 Summary of Site Characteristics .....................................................................................................................................2-5

    2.5.1 Sources of Contamination.................................................................................................................................2-5 2.5.2 Description of Contamination..........................................................................................................................2-5 2.5.3 Contaminant Migration .....................................................................................................................................2-6

    2.6 Current and Potential-Future Land and Resource Uses...............................................................................................2-6 2.7 Summary of Site Risks Before Removal Actions.........................................................................................................2-6

    2.7.1 Human Health Risk Assessment......................................................................................................................2-7 2.7.2 Summary of Ecological Risks..........................................................................................................................2-9 2.7.3 Risk Management Approach............................................................................................................................2-9

    2.8 Remedial Action Objectives.............................................................................................................................................2-9 2.81 Site Remediation Goals ..........................................................................................................................................2-10

    2.9 Description of Remedial Alternatives ..........................................................................................................................2-10 2.9.1 Soil Remedial Alternatives.............................................................................................................................2-10 2.9.2 Sediment Remedial Alternatives ...................................................................................................................2-11

    2.10 Summary of Comparative Analysis of Alternatives ..................................................................................................2-12 2.10.1 Comparison of Soil Alternatives ...................................................................................................................2-13 2.10.2 Comparison of Sediment Alternatives..........................................................................................................2-14

    2.11 Principal Threat Wastes ..................................................................................................................................................2-15 2.12 The Selected Remedy......................................................................................................................................................2-15

    2.12.1 Selected Soil Alternative.................................................................................................................................2-16 2.12.2 Selected Sediment Alternative.......................................................................................................................2-16

    2.13 Statutory Determinations................................................................................................................................................2-16 2.13.1 Protection of Human Health and the Environment ....................................................................................2-16 2.13.2 Compliance with ARARs ...............................................................................................................................2-16 2.13.3 Cost-Effectiveness...........................................................................................................................................2-17 2.13.4 Utilization of Permanent Solutions and Alternative Treatment

    Technologies to the Maximum Extent Practicable .....................................................................................2-17 2.13.5 Preference for Treatment as a Principal Element .......................................................................................2-17

    2.14 Documentation of Significant Changes........................................................................................................................2-17

    i

  • TABLE OF CONTENTS (Continued)

    Section Page No. 3.0 Responsiveness Summary ..............................................................................................................................................................3-1

    3.1 Overview.............................................................................................................................................................................3-1 3.2 Background on Community Involvement......................................................................................................................3-1 3.3 Summary of Comments Received During the Public Comment Period...................................................................3-1

    4.0 References.........................................................................................................................................................................................4-1

    LIST OF TABLES

    2-1 Summary of Total Site Human Health Risks 2-2 Soil Cleanup Goals 2-3 Remedial Alternatives 2-4 Summary of Evaluation Criteria 2-5 Soil Alternative Comparison Summary 2-6 Sediment Alternative Comparison Summary

    LIST OF FIGURES 2-1 Site Location Map 2-2 Site 22 Layout Map 2-3 Former Site Conditions 2-4 Land Use Controls

    LIST OF APPENDICES Appendix A Federal and State ARARs Appendix B Incremental Lifetime Cancer Risks and Hazard Indices

    ii

  • ACRONYMS AND ABBREVIATIONS

    ARAR Applicable or Relevant and Appropriate Requirement CAL Camp Allen Landfill CASY Camp Allen Salvage Yard CERCLA Comprehensive Environmental Response, Compensation and Liability Act CFR Code of Federal Regulations COC Contaminant of Concern EE/CA Engineering Evaluation/Cost Analysis FS Feasibility Study HHRA Human Health Risk Assessment HI Hazard Index HQ Hazard Quotient

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