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HEALTh <br /> ®� Engineers J <br /> ( Pionners H 27 <br /> Economists <br /> Scientists <br /> January 12, 1995 <br /> BAE31604.AS.T8 <br /> Ms. Margaret Lagorio <br /> Environmental Health Division <br /> San Joaquin County Public Health Services <br /> P.O. Box 2009 <br /> Stockton, CA 95201 <br /> Dear Ms. Lagorio: <br /> Subject: Quarterly-Groundwater Quality Monitoring Results and Remediation Status <br /> for Del Monte's Disco Property at 110 North Filbert Street, Stockton, <br /> California <br /> This report presents the analytical results for groundwater monitoring wells and a summary <br /> of remediation activity at the above referenced site. Monitoring wells were sampled on <br /> October 27 1994 as part of the quarterly groundwater quality monitoring program. <br /> PROJECT BACKGROUND <br /> Del Monte's Plant 33 Disco Property is located near the intersection of Myrtle Street and <br /> Filbert Street in Stockton, California. Three 10,000-gallon underground gasoline tanks were <br /> used by a previous owner of the property and were removed in 1985. A soil and <br /> groundwater investigation conducted by CH2M HILL in 1991 revealed that gasoline. <br /> constituents from the tanks are present in the soil and shallow groundwater. The results of <br /> the soil and groundwater investigation are presented in CH2M HILL's "Remedial <br /> Investigation/Feasibility Study, Disco Tank Site, Stockton, California (February 1992)" <br /> (RI/FS). <br /> The groundwater investigation included the installation of eight monitoring wells (Figure 1) <br /> and revealed that gasoline constituents had migrated from the underground tanks into the <br /> shallow groundwater. The shallow groundwater surface was found to exist at approximately <br /> CH2M HILL 1111 Broodway,P.O.Box 72681,Ookland,CA 94604-2681 510257-2426 Fax 570 893-8205 <br />