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Geologtealrecknics/tic. Page 7 <br /> Groundwater Monitoring Report <br /> < Project No.750.2 <br /> November 10,2004 <br /> A Waterra©pump and dedicated tubing were used to collect each sample. Extreme care was <br /> exercised while collecting samples to prevent agitation of the water contained in the <br /> Waterra© pump. With minimal sample aeration, water samples were transferred from the <br /> pump into 40-m1 VOA vials preserved with hydrochloric acid. Each sample container was <br /> checked for headspace bubbles, identified and labeled with a designation,unique nation, inserted <br /> q g <br /> into foam holders and placed in a chilled ice chest for transport to the laboratory. <br /> All non-disposable sampling equipment was decontaminated using a steam cleaner before <br /> P gg <br /> and between uses. Disposable gloves were used by the technician to collect all samples and <br /> were changed with each sampling event. <br /> A chain of custody document, listing all samples collected and their intended analyses, <br /> Laccompanied the samples from field to the laboratory, thereby providing a means to track the <br /> movement of and ensure the integrity of the samples. . <br /> Groundwater monitoring field logs are included in Appendix C. <br /> 3.2 Laboratory Analyses <br /> The groundwater samples collected on August 12, 2004, were delivered to Sherwood Labs <br /> Corporation of Hilmar, California(ELAP# 1400), for analysis. <br /> The groundwater samples were analyzed for: <br /> 1 r • Benzene,Toluene, Ethyl Benzene, and Total Xylenes (BTEX) by EPA method 8020/8015 <br /> 4 L • Total Petroleum Hydrocarbons as Gasoline (TPH-G)by EPA method 8020/8015 <br /> • Fuel oxygenated compounds (MTBE, DIPE, ETBE, TAME & TBA) by EPA .method <br /> r 8260 <br /> L <br /> The detection limits for the above analyses are listed in Table 3 of Appendix A and the lab <br /> data are presented in Appendix B. <br /> As required under AB2886, the laboratory data was submitted electronically to GeoTracker <br /> r on September 15, 2004. The confirmation number is 9032056212. <br /> 3.3 Groundwater Analytical Results <br /> Groundwater Monitoring Wells <br /> • All groundwater-monitoring wells were non-detect above laboratory reporting limits for <br /> all analyzed constituents. <br /> 4 . <br />