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Quarterly Summary Report <br /> Second Quarter 1995 <br /> Unocal Service Station 2859 <br /> 1665 Pacific Avenue <br /> Stockton, California <br /> i <br /> County STID # None <br /> County San Joaquin <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 May 1995 A work <br /> plan to initiate a 6-month soil vapor extraction test was submitted on April 14, 1995 A <br /> SVE remedial system design was completed <br /> NEXT QUARTER ACTIVITIES <br /> Third quarter 1995 groundwater monitoring and sampling will be performed The <br /> remedial system will be constructed The 6-month SVE test will be initiated <br /> CHARACTERIZATION/REMEDIAL STATUS <br /> Soil contamination delineated? Yes j <br /> Dissolved groundwater delineated9 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? Third Quarter 1995 <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 /> 3100401A/2Q95QSR 1 July 18, 1995 <br />