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Former Beacon Station No 12419 March 18,2002 <br /> Stockton California Problem Assessment Report/Corrective Action Plan <br /> . TABLE OF CONTENTS <br /> 1 0 INTRODUCTION 1 <br /> 20 SITE DESCRIPTION 2 <br /> 30 REGIONAL AND LOCAL HYDROGEOLOGY 2 <br /> 40 PREVIOUS INVESTIGATIONS 4 <br /> 50 SENSITIVE RECEPTOR SURVEY AND WELL SEARCH 5 <br /> 60 ADDITIONAL SITE INVESTIGATION 6 <br /> 70 PROBLEM ASSESSMENT 11 <br /> 80 MASS OF PRETROLEUM HYDROCARBONS IN SOIL AND GROUNDWATER 14 <br /> 90 FEASIBILITY STUDIES 17 <br /> 10 0 REMEDIATION ALTERNATIVES 19 <br /> 110 REMEDIATION OBJECTIVE OPTIONS 24 <br /> 12 0 PROPOSED CORRECTIVE ACTIONS 26 <br /> 13 0 DISTRIBUTION 29 <br /> 140 LIMITATIONS 30 <br /> 150 REFERENCES 30 <br /> FIGURES <br /> FIGURE 1 SITE VICINITY MAP <br /> FIGURE 2 SITE PLAN <br /> FIGURE 3 GEOLOGIC CROSS-SECTION A-A' <br /> FIGURE 4 GEOLOGIC CROSS-SECTION B-B' <br /> FIGURE 5 SITE PLAN/GROUNDWATER CONTOUR MAP <br /> FIGURE 6 APPROXIMATE LATERAL EXTENT OF TPHg AND BENZENE IN SOIL <br /> FIGURE 7 TPHg ISOCONCENTRATION MAP <br /> FIGURE 8 BENZENE ISO-CONCENTRATION MAP <br /> FIGURE 9 LOCATIONS OF PROPOSED REMEDIATION INSTALLATIONS <br /> 419PARCAP3-02 doc 11 <br /> Project No 1419 23 HORIZON ENVIRONMENTAL INC. <br />