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[SWMU B-11]

SWMU B-11 RCRA Facility Investigation/Closure Report, June 2004

Table of Contents

Section 1 - Introduction

1.1   Closure Standard

1.2   Background and Site Description

1.3   Site Environmental Setting

1.4   Previous Investigations

Section 2 - Closure Activities

2.1   Statistical Analyses of Bedrock Data

2.2   Excavation and Disposal

2.3   Confirmation Soil Sampling and Statistical Analysis

Section 3 - Conclusions and Closure Certification

3.1   Conclusions and Recommendations

3.2   Evaluation of Data Quality Objectives Attainment

3.3   Certification

Appendices

Appendix A   Statistical Evaluations

Appendix B   Waste Manifests

Appendix C   Evaluation of Data Quality Objectives Attainment

Appendix D   Data Verification Reports:

D1 - 43231

D2 - 43855

Figures

Figure B11-1   Site Location Map

Figure B11-2   Soils and Topographic Map

Figure B11-3   Geologic Setting

Figure B11-4   Sample Location Map

Figure B11-5   Surface Soil Sample Location and PCE Soil Gas Contour Map

Figure B11-6   SWMU B-11 Site Map

Figure B11-7   SWMU B-11 Aerial Photographs

Figure B11-8   SWMU B-11 Geologic Setting

Figure B11-9   SWMU B-11 Sample Location Map

Tables

Table B11-1   Summary of Chemical Constituents Detected in Soil, February 2000

Table B11-2   SWMU B-11 Closure Confirmation Sampling Results