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[SWMU Bldg. 43]

Final SWMU Building 43 RCRA Facility Investigation Report, December 2002

Table of Contents

Section 1 - Introduction

1.1   Background and Site Description

1.1.1   CSSA

1.1.2   SWMU Building 43

1.2   Environmental Setting

1.2.1   Site Soils and Topography

1.2.2   Geology

1.2.3   Hydrology

1.2.4   Cultural Resources

1.2.5   Potential Receptors

1.3   Previous Investigations

1.4   Closure Standard

Section 2 - Field Investigation

2.1   Field Actions

2.1.1   Geophysical Survey

2.1.2   Soil Gas Survey

2.1.3   Unexploded Ordnance Sweep

2.1.4   Surface and Subsurface Soil Samples

2.1.5   Groundwater Samples

2.1.6   Surface Wipe Samples

2.2   Results and Comparisons

2.2.1   Geophysical Survey

2.2.2   Soil Gas Survey

2.2.3   Unexploded Ordnance Sweep

2.2.4   Surface and Subsurface Soil Samples

2.2.5   Groundwater Samples

2.2.6   Surface Wipe Samples

Section 3 - Conclusions and Recommendations

3.1   Conclusions

3.2   Evaluation of Data Quality Objectives Attainment

3.3   Recommendations

Appendices

Appendix A   Analytical Results Summary

Appendix B   Soil Boring Logs

Appendix C   Data Verification Reports

Appendix D   Evaluation of Data Quality Objectives Attainment

Figures

Figure Building 43-1   Site Location Map

Figure Building 43-2   Soils and Topography Map

Figure Building 43-3   Geologic Setting

Figure Building 43-4   Sample Location Map

Figure Building 43-5   In-Phase Electromagnetic Data

Figure Building 43-6   Quadrature Phase Electromagnetic Data

Tables

Table Building 43-1   Chemical Constituents Detected in Soil Gas, November–December 1995

Table Building 43-2   Chemical Constituents Detected in Soil Gas, August 1996

Table Building 43-3   Summary of Chemical Constituents Detected in Soil, March 2000