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Report.,Groundwater-quality Monitoring—July 14-1.5,2006, 7500 West Eleventh Street, Tracy, C.4. Page 14 <br /> Anal3qe Method of Anal sis <br /> Total Petroleum Hydrocarbons EPA Method 8015M <br /> (quantified as Diesel) with pre-treatment by <br /> EPA Method 3630 <br /> Total Petroleum Hydrocarbons EPA Method 8260B <br /> (quantified as Gasoline) <br /> Benzene EPA Method 8260B <br /> Toluene EPA Method 8260B <br /> Ethyl benzene EPA Method 8260B <br /> Total Xylene Isomers EPA Method 8260B <br /> Tertiary-butyl alcohol EPA Method 8260B <br /> Methyl-tertiary butyl ether EPA Method$260B <br /> '' Di-isopropyl ether EPA Method 8260B <br /> Ethyl tertiary butyl ether EPA Method 8260B <br /> Tertiary-amyl methyl ether EPA Method 8260B <br /> f- STL's laboratory is certified by the DHS to perforin the groundwater analyses listed <br /> above. <br /> 2.7.2 Results of Potable Water Sampling <br /> The results of the analyses of the water recovered from the potable water supply wells are <br /> presented in Table 5. As was the case for all previous monitoring rounds, none of the <br /> samples recovered in July 2006 contained any detectable concentrations of analytes of <br /> concern. <br /> 2.7.3 Notification to Well Owners <br /> Following receipt of the analyses of samples recovered from the water supply wells, SJC <br /> notified each well owner of the results by means of a written communication, which <br /> included copies of the applicable Certificates of Analysis. Copies of those Certificates of <br /> Analysis are also included in Appendix B of this report. <br /> SJC <br />