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GeologiralTec6utfrsl�c. Page 3 <br /> Groundwater Monitoring Report <br /> Project No. 1030.2 <br /> August 27,2004 <br /> ' bubbles labeled inserted into foam holders andlaced into a cooled ice chest for transport to <br /> P P <br /> the laboratory. <br /> ' The <br /> sampling technician wore disposable gloves while collecting all samples. <br /> ' A chain of custody document, listing all samples collected and their intended analyses, <br /> accompanied 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 /> As required under AB2886, the depth to groundwater data was submitted electronically to <br /> ' GeoTracker on June 23, 2004, and the confirmation number is 9403487980. <br /> 1.3 Groundwater Laboratory Analyses <br /> Groundwater samples collected on January 23, 2004, were delivered to Sherwood Labs <br /> Corporation of Hilmar, California(FLAP# 1400) for analyses of: <br /> ' o Benzene, Toluene, Ethyl Benzene, and Total Xylenes (BTEX) by EPA method 8020/8015 <br /> o Gasoline Range Organics (TPH-G)by EPA method 8020/8015 <br /> a MTBE by EPA method 8020 <br /> • Positive results were confirmed by EPA method 8260 <br /> The results of the laboratory analyses are listed in Table 3 of Appendix A. Detection limits <br /> ' and analytical results are presented in Appendix B. <br /> The analytical data were submitted to GeoTracker as required under AB 2886 on June 23, <br /> ' 2004. The confirmation code for the submittal is 3246875762. <br /> ' 2.4 FINDINGS AND DISCUSSION <br /> Petroleum Hydrocarbons <br /> ' • MW-1 shows moderate levels of analyzed constituents(excluding MtBE). <br /> • MW-2, MW-3, MW-5, MW-101 and the domestic well were non-detect for all analyzed <br /> ' constituents. Increased groundwater elevations do not impact the concentration of <br /> contaminants in these wells suggesting that there is no residual LNAPL near these wells. <br /> o MW-2, MW-3 and the domestic well have been non-detect for all analyzed <br /> constituents since January of 1997, the first monitoring event at the site. <br /> o MW-101 has been non-detect for all analyzed constituents since installation and <br /> initial testing in May of 2002. <br /> ' • MW-4 shows a trace of BTEX constituents and was non-detect for all other analyzed <br /> constituents. <br />