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TABLE OF CONTENTS <br /> 1. INTRODUCTION.....................................................................................................................1 <br /> 1.1 Synopsis........................................................................................................................1 <br /> 1.2 Site Description ............................................................................................................2 <br /> 1.3 Previous Environmental Investigations........................................................................2 <br /> 2. EXPOSURE PATHWAYS AND MEDIA OF CONCERN......................................................3 <br /> 3. CONSTITUENTS OF POTENTIAL CONCERN AND EXPOSURE <br /> CONCENTRATIONS............................................................................................................4 <br /> 3.1 On-Site Soil Impacts and Exposure Concentrations.....................................................4 <br /> 4. TOXICITY VALUES................................................................................................................5 <br /> 5. EXPOSURE ASSESSMENT AND RISK CHARACTERIZATION.......................................5 <br /> 5.1 Residential Cancer Risks..............................................................................................6 <br /> 5.2 Residential Non-Cancer Health Hazards......................................................................7 <br /> 5.3 Air Concentrations of Organic Compounds from Soils ...............................................8 <br /> 5.3.1 Air Concentrations of Non-Volatile Organic Compounds from <br /> Soil....................................................................................................................8 <br /> 5.3.2 Air Concentrations of Volatile Organic Compounds from Soil.......................8 <br /> 6. SUMMARY AND CONCLUSIONS......................................................................................10 <br /> 6.1 Cancer Risks from Exposure to Soils.........................................................................10 <br /> 6.2 Non-Cancer Health Hazards from Exposure to Soils.................................................10 <br /> 6.3 On-Site Groundwater..................................................................................................1 l <br /> 7. UNCERTAINTIES..................................................................................................................11 <br /> 8. ECOLOGICAL SCREENING EVALUATION .....................................................................12 <br /> 9. RECOMMENDATIONS.........................................................................................................12 <br /> 10. REFERENCES ........................................................................................................................12 <br /> FIGURES <br /> Figure 1. Vicinity Map <br /> Figure 2. Site Map <br /> Figure 3. Conceptual Site Model <br /> TABLES <br /> Table 1. Summary of Soil Analytical Results (BTEX): 0 to 10 feet bgs <br /> Table 2. Summary of Soil Analytical Results (PAHs): 0 to 10 feet bgs <br /> Table 3. Summary of Groundwater Analytical Results (TDS) <br /> Table 4. Summary of COPCs in Soil <br /> Table 5. Cancer Slope Factors <br /> Table 6. Non-Cancer Reference Doses <br /> i SAIF <br /> from sukin?to Solvtloas <br />