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Table of Contents <br /> i <br /> Background <br /> Summary of Additional Source Assessment <br /> Geophysical Survey. <br /> Exploratory Barings <br /> Modifications of Work Plan i <br /> Reconnaissance Groundwater Sampling <br /> Chemical Analysis <br /> Discussion of Additional Assessment <br /> Soil Chemical Data <br /> s Reconnaissance Groundwater Chemical Data <br /> Summary of Data Interpretation <br /> Subsurface Conditions Site Conceptual Model <br /> Site Cleanup Options <br /> Option 1 -Soil Excavation and Removal <br /> Option 2—Soil and Groundwater Dual Phase Extraction <br /> }fes` Option 3—In-situ Biologic Degradation of Petroleum Contaminants <br /> Conclusions and Recommendations Selection of Cleanup Option { <br /> Limitations ! <br /> ; <br /> Selected References <br /> Attachments <br /> Table 1. Soil Chemical Data,Sampled April 25,2000 <br /> Table 2. Soil Chemical Data, Sampled April 19-20,2001 <br /> Table 3. Groundwater Chemical Data, Sampled April 25,2000 <br /> Table 4. Groundwater Chemical Data, Sampled April 19-21,2001 <br /> {� Figure 1. Boring and Monitoring Well Location Map <br /> I Figure 2. Geologic Cross Sections <br /> Figure 3. Isoconcentration Lines,TPHG,April 19,2001 <br /> Figure 4. Isoconcentration Lines,Benzene,April 19,2001 <br /> Figure 5. Areas of Proposed Cleanup <br /> i Figure 6. Microbiological Small Bench and Data Study <br /> I Appendix A Cost Sheets for Cleanup Options <br /> Appendix B Petroleum Degrading Microbe Bench Study Results <br /> a Appendix C Table Quarterly Monitoring Well Sampling Data <br /> Page 2 <br />