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Technical Data Summary <br /> The Southland Corporation,9110 Thomton Road Stockton,CA 3 <br /> April 4 1995 <br /> r RECOMMENDATIONS <br /> Groundwater Technology recommends site closure for the referenced site based on <br /> ■ Separate-phase hydrocarbons have been removed from the on-site groundwater <br /> monitoring wells in the source area <br /> ■ Soli confirmation samples did not contain detectable levels of TPH and benzene Sol[ <br /> vapor samples contain no detectable benzene The highest TPH9 concentrations in <br /> air sample are under 74 pgA <br /> ■ Analytical results from groundwater sampling Indicate levels of hydrocarbon <br /> I constituents have been at or below California action levels for drinking water since <br /> 1989 <br /> ■ The surface at the site is capped by uninterrupted asphalt paving, limiting percolation <br /> from precipitation Into the underlying soil <br /> Groundwater Technology requests that the SJCPHS approve closure, and recommend closure to the <br /> CRWQCB-CVR <br /> Upon approval of site closure, Groundwater Technology will proceed with the abandonment of the on- <br /> site and off-site monitoring wells In accordance with SJCPHS requirements <br /> ATTACHMENTS <br /> 1 Figures <br /> 2 Tables <br /> 3 Bibliography <br /> EOGROUNDWATER <br /> TECHNOLOGY <br />