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30 October 2000 <br /> AGE-NC Project No 99-0624 <br /> Page 3 of 8 <br /> sheets, capping and sealing with tape Each preserved sample sleeve was labeled with soil bonng <br /> location,depth,time,date and sampler's initials and was stored in a chilled container under ice Soil <br /> encountered in the borings was visually classified by an AGE geologist in accordance with the <br /> Unified Soil Classification System(USCS) Additionally, soil samples were field-screened for the <br /> presence of volatile organic compounds using an organic vapor meter(OVM) Selected soil samples <br /> were logged on a chain-of-custody, transported to a State of California Department of Health <br /> Services (DHS)-certified laboratory and analyzed for <br /> • Total petroleum hydrocarbons quantified as gasoline (TPH-g) in accordance with EPA <br /> Method 5030/8015M, <br /> • Volatile aromatics benzene,toluene,ethylbenzene and xylene (BTEX)with methyl tertiary- <br /> butyl ether(MTBE) in accordance with EPA Method 8020, and <br /> • Fuel oxygenates,including tertiary butanol(TBA),di-isopropyl ether(DIPE),ethyl tert-butyl <br /> ether (ETBE),and tert-amyl methyl ether (TAME) and MTBE in accordance with EPA <br /> Method 8260M <br /> i <br /> A grab groundwater sample was collected from probe boring P1 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 equipped <br /> with a ball-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 Ground water sample containers were labeled <br /> with the boring designation,date,time,and sampler's mztials and were placed in a chilled container <br /> under ice <br /> The ground water samples were logged on a chain-of custody and were transported to a <br /> DHS-certified laboratory and analyzed for <br /> • TPH-g in accordance with EPA Method 5030/8015M, <br /> • BTEX with MTBE in accordance with EPA method 8020, and <br /> • Fuel oxygenates,including TBA,DIPE,ETBE,TAME, and.MTBE in accordance with EPA <br /> Method 8260M <br /> • <br /> Advanced GeoEnvironmental,Inc <br />