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03 April 2006 <br /> AGE-NC Project No 99-0559 <br /> Page 2 of 5 <br /> of influent and/or and effluent ground water was performed on 18 October, 26 October, 28 <br /> November, and 20 December 2005 <br /> The influent samples were transferred into three 40-milliliter(ml) EPA-approved volatile organic <br /> analysis (VOA) vials containing 0 5 ml 18% hydrochloric acid as a sample preservative, care was <br /> taken to ensure that visible air bubbles were not present in the vials after filling and capping Ground <br /> water sample containers were properly labeled, placed in a chilled container and transported under <br /> chain of custody protocols to Cal Tech Environmental Laboratories(CTEL),a California Department <br /> of Health Services-certified laboratory, for analysis The influent ground water samples were <br /> analyzed for the following <br /> • Total petroleum hydrocarbons quantified as gasoline (TPH-g) in accordance with EPA <br /> Method 8015 Modified, and <br /> • Benzene, toluene, ethylbenzene and xylenes (BTEX) and the fuel additive methyl-tertiary- <br /> butyl ether (MTBE) in accordance with EPA Method 8260B <br /> The effluent sample was collected into VOA vials and a 1-liter amber bottle without preservative <br /> All samples were labeled with the sample location, date, time, and sampler's initials The samples <br /> were subsequently logged on a chain of custody form,placed in a chilled container and transported <br /> under chain of custody to CTEL for analysis <br /> The samples were analyzed for <br /> • TPH-g and TPH-d (diesel) by EPA Method 8015 Modified, <br /> • BTEX and MTBE by EPA Methods 8260, and <br /> • pH in accordance with EPA Method 150 1 <br /> The effluent samples from 28 October and 20 December 2005 were sampled for <br /> • All constituents by EPA method 624 (purgable organics) and 625 (semivolatile organics), <br /> • Metals Cadmium(Cd),Chromium(Cr),Copper,(Cu),Lead(Pb),Nickel(Ni),and Zinc (Zn) <br /> by EPA method 200 7 <br /> The effluent sample from 20 December 2005 was also sampled for <br /> • Fuel oxygenates t-Butyl Alcohol (TBA), Diisopropyl Ether (DIPS), Ethyl-t-butyl ether <br /> . (ETBE),t-Amyl Methyl Ether(TAME), 1,2-Dichloroethane,and 1,2-Dibromoethane(EDB) <br /> Advanced GeoEnvironmental,Inc <br />