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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 /> 2.1 Soil................................................................................................................................3 <br /> 2.2 Groundwater.................................................................................................................3 <br /> 2.3 Soil Vapor.....................................................................................................................4 <br /> 2.4 Summary.......................................................................................................................4 <br /> 3. CONSTITUENTS OF POTENTIAL CONCERN AND EXPOSURE <br /> CONCENTRATIONS............................................................................................................4 <br /> 3.1 On-Site Soil Impacts and Exposure Concentrations.....................................................4 <br /> 3.2 Groundwater Impacts and Exposure Concentrations ...................................................5 <br /> 3.3 Toxicity Values.............................................................................................................5 <br /> 3.4 Exposure Assessment and Risk Characterization for Soil............................................6 <br /> 3.4.1 Cancer Risks from Constituents of Potential Concern in Soil..........................6 <br /> 3.4.2 Non-Cancer Health Hazards from Constituents of Potential <br /> Concernin Soil.................................................................................................7 <br /> 3.4.3 Air Concentrations of Organic Compounds from Soils ...................................8 <br /> 3.5 Exposure Assessment and Risk Characterization for Indoor <br /> Subsurface Vapor Intrusion........................................................................................10 <br /> 3.5.1 Cancer Risks from Subsurface Vapor Intrusion.............................................11 <br /> 3.5.2 Non-Cancer Hazards from Subsurface Vapor Intrusion.................................11 <br /> 4. HUMAN HEALTH SCREENING EVALUATION RESULTS.............................................11 <br /> 4.1 Cancer Risks...............................................................................................................12 <br /> 4.2 Non-Cancer Health Hazards.......................................................................................12 <br /> 5. UNCERTAINTIES..................................................................................................................12 <br /> 6. HUMAN HEALTH SCREENING EVALUATION CONCLUSIONS..................................14 <br /> 7. ECOLOGICAL SCREENING EVALUATION......................................................................14 <br /> 8. RECOMMENDATIONS.........................................................................................................14 <br /> 9. REFERENCES ........................................................................................................................15 <br /> 10. REPORT LIMITATIONS .......................................................................................................15 <br /> i SALE <br />