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Quarterly Summary Report <br /> First Quarter 1995 pLgr�ggjy <br /> Unocal Service Station 2859 <br /> zo <br /> 1665 Pacific Avenue MM p 11995 <br /> Stockton, California <br /> County STID # None ENVIRONMENTAL HEALTH <br /> County San Joaquin PERMfT/SERVICES <br /> BACKGROUND <br /> Underground storage tanks removed in March 1988 From March 1988 through February <br /> 1992 twelve on-site and three off-site borings were drilled, and four on-site monitoring <br /> wells, three on-site vapor extraction wells, and three off-site monitoring wells were <br /> installed Analytical results indicate that soil near the eastern dispenser island contains <br /> gasoline hydrocarbons and groundwater has been impacted with gasoline hydrocarbons <br /> RECENT QUARTER ACTIVITIES <br /> Quarterly groundwater monitoring and sampling were performed in February 1995 Work <br /> was initiated regarding a 6 month field study to address remediation of hydrocarbon <br /> impacted soil and groundwater detected beneath the site <br /> . NEXT QUARTER ACTIVITIES <br /> Second quarter 1995 groundwater monitoring and sampling will be performed A work <br /> plan will be submitted that will define activities to be conducted during the 6 month <br /> remedial field study at the site , <br /> CHARACTERIZATION/REMEDIAL STATUS <br /> Sod contamination delineated? Yes <br /> Dissolved groundwater delineated? Yes <br /> Free product delineated? Not applicable <br /> Amount of groundwater contaminant recovered this quarter? None <br /> Soil remediation in progress? No <br /> Anticipated start date? Unknown <br /> Anticipated completion date? Unknown <br /> Dissolved/free product remediation in progress? No <br /> Anticipated start? Not applicable <br /> Anticipated completion? Not applicable <br /> CONSULTANT Pacific Environmental Group, Inc <br /> • <br /> 31004002/IQ95QSR I April 19, 1995 <br />