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IT Corporation <br /> 757 Arnold Drive, Suite D <br /> "EA L I f I Martinez, CA 94553-6526 <br /> VI""E_ lel 925 370 3990 <br /> ' `'�' Fax 925 370 3991 <br />;4heVv!11!�OukL <br /> A �- T r 1 1: 01 <br /> A Member of The IT Group <br /> March 11, 1999 <br /> Mr Harlin Knoll <br /> San Joaquin County <br /> Public Health Services—EHD <br /> ' 304 E Weber Avenue, Third Floor <br /> Stockton, CA 95201 <br /> ' Subject Request for Closure <br /> Sears, Roebuck and Co Automotive Center No 1288 <br /> California State Code No 1218 <br /> 5110 Pacific Avenue <br />' Stockton, California <br /> Dear Mr Knoll <br />' IT Corporation (formerly Fluor Daniel GTI, Inc), on behalf of Sears, Roebuck and Co , submits this <br /> information to substantiate no further action at the subject site See attachment 1, figure 1 for the <br /> site location, and figure 2 for a plot plan showing existing site features and sample locations <br /> Analytical results and chain-of-custody are provided in attachment 2, the analytical results are <br /> summarized on tables 1, 2, and 3 The Underground Storage Tank Closure Review Form and the <br /> ' Tri-Regional Recommendations Checklist are provided in attachment 3 <br /> ' Closure is requested on the basis of <br /> ■ Hydrocarbon source removal was completed over four years ago Three underground <br /> gasoline storage tanks (USTs) were removed in the mid-1980s Product lines and the <br /> fuel dispenser islands were removed August 1994 (Dispenser Island and Product Line <br /> Removal and Soil Assessment, Groundwater Technology, Inc , September 23, 1994) <br /> ■ Impacted soil was removed from the site (November 1994) <br /> ■ Original concentrations of compounds were detected at a maximum depth of 5 feet below <br /> grade <br /> ■ Highest concentrations of compounds originally reported in excavated soil were removed <br /> from the site <br /> ■ Impacted soil was within the upper 2 to 5 feet of the subsurface and attenuates with <br /> increased depths <br /> 1288Stkn rfc <br /> 5 <br /> r_ <br />