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Workplan for Additional Offsite Assessment Fate and'Transport Evaluation Addendum, i <br /> Sensitive Receptor Survey,and Fourth Quarter 2002 Monitonng And Sampling <br /> 7-Eleven Store No 14117,2725 Country Club Blvd,Stockton,CA January 30,2003 <br /> f <br /> CONTENTS <br /> 10 INTRODUCTION 1 <br /> 20 BACKGROUND 1 <br /> 30 GEOLOGY/HYDROGEOLOGY 2 <br /> ' <br /> 40 WORKPLAN FOR ADDITIONAL SITE ASSESSMENT 3 <br /> 50 FATE AND TRANSPORT EVALUATION ADDENDUM 5 <br /> 60 SENSITIVE RECEPTOR SURVEY 5 <br /> 70 GROUNDWATER MONITORING AND SAMPLING 6 <br /> 71 Groundwater Monitoring Data 6 <br /> 72 Monitoring Well Sampling 6 <br /> 73 Results of Groundwater Sample Analysis 6 <br /> 7 3 1 Gasoline 6 <br /> 7 3 2 Heterotrophic Plate Count Verification Sampling 7 <br /> 74 Purge Water Transportation and Disposal 7 <br /> 8 0 CONCLUSION AND RECOMMENDATIONS 7 <br /> Figures <br /> 1 Site Location Map <br /> 2 Potentiometric Surface and Dissolved Hydrocarbon Concentration Map (10116102) <br /> 3 Combined Site Map and Well Locations, 2725 and 2705 Country Club Boulevard Facilities <br /> 4 Cross Section A-A' and B-B' <br /> 5 MTBE vs TBA(for Monitoring Well MW-2) <br /> ' Tables <br /> 1 Groundwater Analytical Data <br /> 2 Historical Groundwater Analytical Data <br /> 3 Heterotrophic Plate Count <br /> 1 Appendices <br /> ' A Historic Groundwater Monitoring Data, Former Exxon Retail Site 7-3708 <br /> B MTBE Fate and Transport Study Results <br /> C Sensitive Receptor Survey Results, Former Exxon Retail Site 7-3708 <br /> D Field Data Sheets <br /> E Laboratory Analytical Results for Groundwater Samples <br /> ' 14117Q24_SAR doc <br />