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Well Installation and Quarterly Groundwater Monitoring Report <br /> Second Quarter 2008 <br /> 1950 West Fremont Street, Stockton, California <br /> 1.0 INTRODUCTION <br /> 1 This Well Installation and Quarterly Groundwater Monitoring Report (Report) describes the scope of <br /> work completed in the Second Quarter 2008 for 1950 West Fremont Street, Stockton, California(the site) <br /> to further evaluate the quality of the groundwater at the site,where chemicals have been previously found <br /> at concentrations exceeding regulatory criteria. <br /> 1.1 LOCATION AND BACKGROUND <br /> ' The site is located at 1950 West Fremont Street in Stockton, California. The Stockton Deep Water <br /> Channel is located approximately 500 feet south of the site, while Interstate 5 is located a few hundred <br /> feet north of the site. The site location is shown on Figure 1. The immediate site vicinity is shown on <br /> Figure 2. <br /> Previously, the site operated as a printed circuit board manufacturing facility under Tyco Electronics <br /> Corporation (TEC) and its predecessor companies, Sigma Circuits and Citation Circuits. Delta <br /> Switchboard Co. and RTE Delta Corp. also operated at the site, but they are not predecessor companies <br /> of TEC. TEC ceased operations at the site in May 2001. Currently,the site is occupied by an engineering <br /> company and a brewery. <br /> The site consists of a two story concrete tilt-up building with a concrete floor, and associated paved <br /> parking and support areas. Approximately 95 percent of the site is paved or covered by the building, <br /> while the remainder of the site is landscaped. The main portions of the former manufacturing facility <br /> ' consisted of two plating shops (A and B) located in the eastern half, a waste treatment area located in the <br /> southeastern portion, and a chemical storage area just south of the waste treatment area. <br /> Department of Toxic Substances Control (DTSC) conducted a site inspection on August 20, 2002. Based <br /> ' on their site visit and a review of documents submitted to DTSC, DTSC identified three Solid Waste <br /> Management Units(SWMUs)needing further investigation.The SWMUs included: <br /> • SWMU-1 Plating Process Area <br /> • SWMU-2 Chemical Storage Area <br /> ' • SWMU-3 Wastewater Treatment Area <br /> In June 2004, DTSC entered into a consent agreement (Consent Agreement for Corrective Action - <br /> Docket No. SPRD 02/03 SCC-4288)with TEC. <br /> ' Project 102790 1 July 2008 <br />