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TABLE OF CONTENTS <br /> Page <br /> 1 INTRODUCTION 1 <br /> 2 BACKGROUND 1 <br /> ' 3 SITE CONDITIONS 4 <br /> 31 Occurrence and Distribution of Detected TPH for Soil Samples 5 <br /> ' <br /> 32 Occurrence and Distnbutiop of Detected TPH for Water Samples 5 <br /> 33 Product Removal 9 <br /> 34 Potential for Migration Surface Water and,Dnnking Water Impacts 9 <br /> ' <br /> 35 Human Health Risks 14 <br /> 4 CORRECTIVE ACTION OBJECTIVE 16 <br /> 5 CORRECTIVE ACTION ALTERNATIVES EVALUATION 16 <br /> ' <br /> 51 Alternative Al Excavation of soils containing 500 mg/kg TPH or more 16 <br /> 52 Alternative A2 Excavation with Limited Vertical Extent(5 feet Into the <br /> Water Table) 17 <br /> ' <br /> 53 Alternative A3 Extend excavation laterally to MW-3 and vertically extend to <br /> a depth of 28 feet 1 18 <br /> 6 SUMMARY AND RECOMMENDATIONS 19 <br /> ' 7 REFERENCES 22 <br /> FIGURES <br /> Figure 1 Site Location Map 2 <br /> Figure 2 Site Layout Map 3 <br /> ' Figure 3 Site Plan with Groundwater Results 8 <br /> TABLES <br /> ' Table 1 Site Chronology 4 <br /> Table 2 Soil Sample Results 6 <br /> ' Table 3 Grab Groundwater Analytical Results 10 <br /> Table 4 Groundwater Analytical Results I I <br /> Table 5 ESLs Compared to Site Conditions 15 <br /> Table 6 WQO's Compared to Site Conditions 15 <br /> Table 7 Comparison of Remedial Alternatives 21 <br /> ' APPENDICES <br /> Appendix A Alternative Al Detailed Maps and Cost Analysis <br /> Appendix B Alternative A2 Detailed Maps and Cost Analysis <br /> Appendix C Alternative A3 Detailed Maps and Cost Analysis <br /> F• <br /> I <br /> R\CONTGRWStacktonlCAMCAP ADDENDUM <br />