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I , <br />'. Quarterly Report - Third Quarter 2003 <br />' Former CURTISS PONTIAC-BUICK <br /> 2450 Taste Road, Tracy, California <br />' 1.0. INTRODUCTION <br />' At the request of Mr Joe Taste of J T Storage, Advanced GeoEnvironmental, Inc (AGE) has <br /> prepared flus quarterly report for 2450 Toste Road, Tracy, California(the site) The scope of work <br /> included monitoring and sampling the ground water monitoring well network, laboratory analysis <br />' of ground water samples, data analysis and preparation of this report The site setting is illustrated <br /> in Figure 1 A plan view of the site is illustrated in Figure 2 <br />' Summaries of previous investigations at the site are included in the AGE-prepared Prehminary <br /> Investigatzon and Evaluation Report(PIER),dated 15 August 1997 and Quarterly Report, dated 18 <br /> September 1997 Quarterly momtonng data from February 1998 to present is summarized in <br /> Tables 1 and 2 of this report <br /> 2.0. PROCEDURES <br /> Field work was conducted and this report was prepared in accordance with guidelines issued by the <br /> Central Valley Regional Water Quality Control Board (CVRWQCB) for subsurface investigation <br /> of underground storage tank (UST) sites and guidelines issued by the San Joaquin County <br /> Environmental Health Department(EHD) for sampling ground water monitoring wells <br /> 2 1 MONITORING WELL DEVELOPMENT <br /> On 10 July 2003, monitoring wells MW-IA, MW-1B, MW-4 and MW-7 were developed utilizing <br /> a stainless steel hand bailer and a Watera Hydrolift Pump Ground water was purged from each <br /> monitoring well until groundwater was visually sediment free Approximately 7 50 gallons of water <br /> were removed from well MW-IA, 21 gallons were removed from well MW-1B, 8 25 gallons were <br /> removed from well MW-4 and 40 gallons were removed from well MW-7 Ground water <br /> temperature,pH and conductivity were measured at regular intervals during purging using an Oak-ton <br /> water analyzer Field sheets and data are included in Appendix A Purged water was stored on-site <br /> in properly labeled, 55-gallon DOT-approved drums <br /> 2 2 WELL MONITORING AND EVACUATION <br /> On 16 July 2003,a Solinst water level meter was used to measure the depth to ground water in each <br /> well relative to the top of the well casing After ground water depth measurements were recorded, <br /> . monitoring wells MW-1 through MW-7 were purged using disposable plastic bailers Between 3 and <br /> I16 25 gallons of water were evacuated from monitoring wells MW-1 through MW-7, equivalent to <br /> Advanced GeoEnvironmentai Inc <br /> f <br />