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1 <br /> SMTH <br /> August 29, 1995 <br /> ' Ms. Ann Macdonald <br /> Environmental Affairs Manager <br /> ' Coca-Cola Enterprises, Inc <br /> 7901 Oakport Street <br /> Oakland, CA 94621 <br /> Subject Second Quarter 1995 Groundwater Monitoring Report for Coca-Cola <br /> Enterprises, Inc., Former Distribution Facility, 1100 North Wilson Way, <br /> Stockton, California <br /> ' Dear Ms Macdonald <br /> As required by the San Joaquin County Public Health Services (SJCPHS) and at the request of <br /> Coca-Cola Enterprises, Inc. (Coca-Cola), Smith Environmental Technologies (Smith <br /> Environmental) has prepared this letter report summarizing the Second Quarter 1995 <br /> Groundwater Monitoring and site activities performed at the above referenced site (Figure 1). <br /> ' Sampling was performed to monitor the distribution of petroleum hydrocarbons in groundwater <br /> at the site. Monitoring was performed to determine the groundwater flow direction and the <br /> hydraulic gradient in the uppermost aquifer <br /> ' BACKGROUND <br /> ' Coca-Cola closed operations at the Distribution Facility in April 1990. Two steel underground <br /> storage_tanks (USTs), fuel dispensers, product piping and vent piping were excavated and <br /> disposed as part of the abandonment process One 10,000 gallon diesel UST, installed in <br /> 1978, and one 1,000 gallon gasoline UST, installed in 1937, were excavated in April 1990 <br /> (USTEC, September, 1991). The location of the former USTs are shown in Figure 2. <br /> Several environmental investigations have been conducted since tank removal including a soil <br /> gas survey in May 1990, a subsurface environmental investigation in August and September <br /> 1990; an additional subsurface investigation in October and November 1990, and quarterly <br /> groundwater monitoring The results of these investigations are presented in the reports listed <br /> at the end of this report A soil vapor extraction test was conducted at the site by RESNA in <br /> November 1992 (RESNA, January 1993):' Investigations have shown that the malonty of <br /> petroleum hydrocarbons in the soil were present from 0 to approximately 25 feet below grade <br /> and within a radius of about 20 feet of the former 1,000 gallon gasoline UST tank pit. A soil <br /> I <br />