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[AOC 36]

AOC 36 RFI/Closure Report

Table of Contents

1.1   Background and Site Description

1.1.1   CSSA

1.1.2   AOC 36

1.1.2.1   Site Description

1.1.2.2   Potential Sources of Contamination

1.1.2.3   Site Location

1.2   Site 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

1.3.1   Geophysical Survey

1.3.2   Soil Gas Surveys

1.3.3   Mustard Gas Investigation

1.4   Closure Standard

Section 2 - Field Investigation

2.1   Field Actions

2.1.1   Geophysical Survey

2.1.2   Soil Gas Survey Samples

2.1.3   Surface Soil Samples

2.1.4   Subsurface Soil Samples

2.1.5   Groundwater Samples

2.2   Results and Comparisons    

2.2.1   Geophysical Survey

2.2.2   Soil Gas Survey Samples

2.2.3   Surface Soil Samples

2.2.4   Subsurface Soil Samples

2.2.5   Groundwater Samples

Section 3 - Conclusions and Recommendations

3.1   Conclusions

3.2   Evaluation of Data Quality Objectives Attainment

3.3   Recommendations

3.4   Certification

Appendices

Appendix A   Summary Analytical Results

Appendix B   Data Verification Reports

Appendix C   Evaluation of Data Quality Objectives Attainment

Figures

Figure AOC36-1   Site Location Map

Figure AOC36-2   Soils and Topography Map

Figure AOC36-3   Geologic Setting

Figure AOC36-4   Sample Location Map

Figure AOC36-5   Surface Soil Sample Location and PCE Soil Gas Contour Map

Tables