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0 <br /> EMVIROMMEMUL <br /> October 9, 1998 <br />' Mr Harland Knoll <br /> San Joaquin County Public Health Services <br /> Environmental Health Division <br /> 304 E Weber Avenue, 3rd Floor <br /> Stockton, California 95202 <br /> I <br /> SUBJECT: WORKPLAN FOR ADDITIONAL SITE ASSESSMENT <br /> FORMER BRIDGESTONEIFIRESTONE FACILITY <br /> BFS PROPERTY NO 127434 <br /> 400 N ELDORADO STREET <br />' STOCKTON, CALIFORNIA <br /> QST PROJECT NO. 64-98090 <br /> I <br /> Dear Mr Knoll <br /> On the behalf of BndgestonelFirestone Inc (BFS), QST Environmental Inc (QST) is pleased to <br /> submit this workplan for additional site assessment at the subject site The objective of the <br /> additional site assessment is to determine the presence or absence of petroleum hydrocarbon <br /> concentrations in the soil and groundwater Background information and our proposed scope of <br /> work are described in the following sections <br /> I <br /> SITE DESCRUMON AND <br /> I �• <br /> The former facility was located at the northeast comer of the intersection of North El Dorado <br /> Street and Lindsay Street in Stockton, California (Figure 1) The 4 Freeway is approximately 112- <br /> mile south of the former facility Stockton City Hall and McLeod Lake are across El Dorado <br /> Street to the west of the former facility <br /> GEOLOC1 HYDROGEOLOGY <br />' aeolm <br /> The ground surface elevation at the former facility is approximately at sea level (U S Geological <br /> Survey, 1962) The former facility is located within the physiographic province known as the San <br /> Joaquin Valley, which Is part of the greater Central Valley Basin Soil beneath the former facility <br /> consists of flood basin deposits of Recent (Holocene) age consisting prunanly of clay, silt and <br />' some sand (Page, 1986) <br /> 3545 Howard Way,2nd Floor Costa Mesa,CA 92626-1418,Phone 714.426.9000,FAX 714.426.9027 <br /> ' Formerly Environmental Science&Engineering,Inc <br />