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22 May 2000 <br /> AGE-NC Project No. 00-0704 <br /> Page 3 of 7 <br /> and sealing with tape. Each preserved sample sleeve was labeled with soil boring location, depth, <br /> time,date and sampler's initials and was stored in a chilled container under ice. Soil encountered in <br /> the borings was visually classified by an AGE geologist in accordance with the Unified Soil <br /> Classification System (USCS). Additionally, soil samples were field screened for the presence of <br /> volatile organic compounds using an organic vapor meter(OVM).Selected soil samples were logged <br /> on a chain-of-custody form, transported to a State of California Department of Health Services <br /> (DHS)-certified laboratory and were analyzed for: <br /> • Total petroleum hydrocarbons quantified as gasoline (TPH-g) in accordance with EPA <br /> Method 5030/8015M; <br /> • Total petroleum hydrocarbons quantified as diesel(TPH-d)in accordance with EPA Method <br /> 3550/8015M; <br /> • Total petroleum hydrocarbons quantified as gasoline, diesel, and motor oil (TPH-all) in <br /> accordance with EPA Method 3550/8015M; <br /> • Volatile aromatic compounds: benzene, toluene, ethylbenzene and xylene (BTEX) in <br /> accordance with EPA Method 8020; <br /> • Volatile organic compounds (VOCs) by EPA Method 8260; <br /> • Metals - cadmium, chromium, nickel, lead, and zinc by EPA Method 6010A; and <br /> • Fuel oxygenated compounds, including tertiary butanol (TBA), di-isopropyl ether (DIPE), <br /> ethyl tert-butyl ether(ETBE) and tert-amyl methyl ether(TAME) and methyl tertiary-butyl <br /> ether (MTBE) in accordance with EPA Method 8260B. <br /> A grab ground water sample was collected from probe boring B 1.The sample was collected utilizing <br /> a Geoprobe water sampling assembly fitted with a pre-cleaned one-inch diameter,0.01-inch slotted <br /> temporary well screen.The ground water sample was extracted by lowering a Teflon hose fitted with <br /> a sampling valve through the hollow center of the push rods into the screen section. Upon retrieval, <br /> the sample was transferred into EPA-approved 40-m1 VOA vials, containing 0.5 ml 18% <br /> hydrochloric acid as a sample preservative. Care was taken to ensure that visible air bubbles were <br /> not present in the VOA vials after filling and capping. A sample for TPH-d analysis was collected <br /> into a laboratory-supplied, 1-liter amber bottle. The ground water sample containers were labeled <br /> with the boring designation,date,time,and sampler's initials and were placed in a chilled container <br /> under ice. <br /> Water sample B 1-W was logged on a chain-of-custody and transported to a DHS-certified laboratory <br /> and analyzed for: <br /> Advanced GeoEnvironmental,Inc. <br />