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H - <br /> d <br /> Quarterly Summary Report <br /> Second Quarter 2001 <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 <br /> dispenser excavations, and pea gravel samples collected from the top of the USTs <br /> indicated the presence of petroleum hydrocarbons in soil beneath the site. During <br /> product line and dispenser upgrade activities, approximately 21 tons of petroleum- <br /> impacted soil was over-excavated from the site and disposed of at Forward Landfill , <br /> In January 1999, four groundwater monitoring wells (MW-1 through MW-4) were <br /> installed at the site. Quarterly groundwater monitoring is ongoing. First quarter 2001 <br /> groundwater monitoring results report MtBE in two of the wells at a maximum <br /> concentration of 838 ppb (MW- 1). <br /> RECENT QUARTER ACTIVITIES (Second Quarter 2001) <br /> 1 . Monitored and sampled groundwater monitoring wells. <br /> 2. Prepared and submitted quarterly summary report. <br /> 3 . Prepared and submitted workplan for additional site assessment. <br /> NEXT QUARTER ACTIVITIES (Third Quarter 2001) <br /> 1 . Prepare and submit quarterly summary report. <br /> 2. Conduct joint monitoring and sampling of the groundwater monitoring wells. <br /> 3 . Perform additional site assessment. <br /> 4. Prepare and submit a site conceptual model. <br /> CHARACTERIZATION/REMEDIAL STATUS <br /> Soil contamination delineated? Yes <br /> Dissolved groundwater delineated? No <br /> Free product delineated? NA <br /> Amount of groundwater contaminant recovered this quarter? N/A <br /> Soil remediation in progress ? N/A <br /> Start? N/A <br />