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Report:Groundwater-quality Monitoring—October 25,2002: 7500 West Eleventh Street, Tracy, CA. Page 9 <br /> bailer was decanted so as to fill completely the clean glassware supplied by the <br /> laboratory. The sample vials and jars were then tightly closed labeled for identification <br /> , <br /> entered into chain-of-custody control, packed on chemical ice and held in refrigerated <br /> storage until they were transported, within ten hours, to Severn Trent Laboratories' <br /> (STL) laboratory in Pleasanton, California for analysis. <br /> i 2.4 Analyses of Groundwater Samples <br /> Each groundwater sample was analyzed at the laboratory for the following suite of <br /> analytes. <br /> Ana_ lyte Method of Anal sis <br /> Total Petroleum Hydrocarbons EPA Method 8015M <br /> (quantified as Diesel) <br /> Total Petroleum Hydrocarbons EPA Method 8260FAB <br /> (quantified as Gasoline) <br /> Benzene EPA Method 8260FAB <br /> Toluene EPA Method 8260FAB <br /> -: Ethylbenzene EPA Method 8260FAB <br /> Total Xylene Isomers EPA Method 8260FAB <br /> 1 tertiary-Butyl alcohol EPA Method 8260FAB <br /> Methyl-tertiary butyl ether EPA Method 8260FAB <br /> Di-isopropyl ether EPA Method 8260FAB <br /> Ethyl tertiary-butyl ether EPA Method 8260FAB <br /> Tertiary-amyl 1 ether EPA Method 8260FAB <br /> methyl <br /> 1,2 Dichloroethane EPA Method 8260FAB <br /> I; s <br /> STL is certified to perform the specified analyses by the California Department of Health <br /> Services (DHS). <br /> The results of the analyses of samples of groundwater are presented in Table 2, which <br /> also includes the results of analyses of groundwater samples recovered from the previous <br /> sampling rounds. <br /> i • r <br /> sic <br />