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j <br /> KLEINFELDER <br /> After collection, the groundwater samples were labeled, logged on a chain-of-custody, and <br /> immediately stored in an. iced cooler, The samples were transported under chain-of-custody <br /> control by courier to Sequoia Analytical Laboratories (Sequoia) of Sacramento, California for <br /> chemical analysis. Sequoia is certified by the Califomia Department of Health Services to <br /> perform the requested analyses. The groundwater samples were analyzed for the following: <br /> 0 Total Petroleum Hydrocarbons-gasoline (TPH-g)by DHS LOFT; <br /> • Benzene, Toluene, Ethylbenzene,Xylene (BTEX)by EPA Method 8015M/8021B; <br /> • 1,2 DCA by EPA Method 8260B; <br /> • EDB by EPA Method 8260B; <br /> • TBA by EPA Method 8260B; and <br /> • Oxygenates, MTBE, DIPS, ETBE, TAME by EPA Method 8260B (MW-DIS-14s, MW-DIS- <br /> 14d, MW-DIS-15 only). <br /> The samples were analyzed on a regular laboratory turnaround schedule, requiring approximately <br /> 7 to 10 working.days for receipt of analytical data. <br /> 1 <br /> Il <br /> l ` <br /> 12280.MON/ST04RIO92 Page 7 of 12 <br /> Copyright 2004 Kleinfelder,Inc. September 2,2004 <br />