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Final SWMU B-30 Closure Report, August 2004

Table of Contents

Section 1 - Introduction

1.1   Closure Standard

1.2   Background and Site Description

1.2.1   CSSA

1.2.2   SWMU B-30

1.2.2.1   Site Description

1.2.2.2   Potential Sources of Contamination

1.2.2.3   Site Location

1.3   Site Environmental Setting

1.3.1   Site Environmental Setting

1.3.2   Geology

1.3.3   Hydrology

1.3.4   Cultural Resources

1.3.5   Potential Receptors

1.4   Previous Investigations

1.4.1   Geophysical Survey

1.4.2   Surface Soil Samples

1.4.3   Subsurface Soil Samples

Section 2 - Closure Activities

2.1   Excavation and Disposal

2.2   Confirmation Sampling

Section 3 - Conclusions and Closure Certification

3.1   Conclusions and Recommendations

3.2   Evaluation of Data Quality Objectives Attainment

3.3   Closure Certification

Appendices

Appendix A   Analytical Results Summary

Appendix B   Waste Manifests

Appendix C   Evaluation of Data Quality Objectives Attainment

Appendix D   Data Verification Report

Figures

Figure B30-1   Site Location Map

Figure B30-2   Soils and Topographic Map

Figure B30-3   Geologic Setting

Figure B30-4   Sample Location Map

Figure B30-5   In-Phase Electromagnetic Data

Figure B30-6   Quadrature Electromagnetic Data

Figure B30-7   SWMU B-30 Site Location Map

Figure B30-8   SWMU B-30 Aerial Photographs

Figure B30-9   SWMU B-30 Sample Location Map

Tables

Table B30-1   Summary of Chemical Constituents Detected in Soil, March 2000

Table B30-2   Summary of Chemical Constituents Detected in Subsurface Soil, March 2000

Table B30-3   Confirmation Sampling Results for SWMU B-30