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Quarterly Summary Report <br /> First Quarter 1999 <br /> Circle K Store #8671 <br /> 8606 Thornton Road <br /> Stockton, CA <br /> City/County ID #: Stockton <br /> County: San Joaquin <br /> BACKGROUND <br /> In May 1998, product lines and dispensers were upgraded to meet 1998 EPA standards. <br /> Analytical results from soil samples collected from the former product line and dispenser <br /> excavations, and pea gravel samples collected from the top of the USTs indicated the <br /> presence of petroleum hydrocarbons in soil beneath the site. During product line and <br /> dispenser upgrade activities, approximately 21 tons of petroleum impacted soil was over- <br /> excavated from the site and disposed of at Forward Landfill, <br /> In January 1999, four groundwater monitoring wells (MW- 1 through MWA) were <br /> installed at the site. <br /> RECENT QUARTER ACTIVITIES <br /> 1 . Installed four groundwater monitoring wells (MW- 1 through MW4) at the site. <br /> 2. Submitted a report documenting the installation of four groundwater monitoring <br /> wells. <br /> NEXT QUARTER ACTIVITIES <br /> 1 . Prepare and submit second quarter 1999 quarterly summary report. <br /> 2. Implement quarterly monitoring and sampling program. <br /> CHARACTERIZATION/REMEDIAL STATUS <br /> Soil contamination delineated? Yes <br /> Dissolved groundwater delineated? Yes <br /> Free product delineated? N/A <br /> Amount of groundwater contaminant recovered this quarter? N/A <br /> Soil remediation in progress? N/A <br /> Start? N/A <br /> Anticipated completion date? N/A <br /> Dissolved/free product remediation in progress? N/A <br /> CONSULTANT: SECOR International Incorporated <br />