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CHEVRON ENERGY TECHNOLOGY COMPANY <br /> INTEGRATED LABORATORY TECHNOLOGIES <br /> PROJECT SUMMARY <br /> Project No: 2009.0019 Requested by: Scott Mansholt <br /> Date Initiated: 3/6/2009 Location: 6111 Bollinger Canyon Rd. <br /> Date Completed: 3/11/2009 San Ramon, CA 94583 <br /> CRTC Charge Code: YWETS 1560196 Phone: 925-543-2353 <br /> Proiect Description: <br /> Fuel fingerprint two soil samples (SB-43-36' and SB-41-43') collected from the US-Can Welty <br /> Rd. Site located at Welty Road and Highway 33 in Vernalis, CA and identify the hydrocarbon <br /> types present. <br /> Results: <br /> The soil boring SB-43-36' contains a minute amount of hydrocarbon compounds (shown in the <br /> table below); however, there were compounds detected that correspond to gasoline and middle <br /> distillate hydrocarbons. Compounds detected in the gasoline range include: branched paraffins, <br /> olefins, toluene, and ethylbenzene. Compounds detected in the sample that was indicative of <br /> middle distillates included branched paraffins, which were present in amounts were barely above <br /> the signal to noise threshold. <br /> Soil boring SB-41-43' contained compounds that are indicative of gasoline, diesel fuel #2, and <br /> crude oil or bunker fuel. The chromatographic profile for the crude region of the chromatogram <br /> is typical of an SJV crude profile. No benzene was detected; however,toluene, ethylbenzene and <br /> xylenes were detected. The sample is extremely biodegraded with only the branched paraffins <br /> clearly defined. Below is a table describing the carbon number distribution. <br /> approximate <br /> hydrocarbon approximate <br /> C6- C7-C10 C11-C14 C15-C25 C26+ <br /> Sample I.D. concentration in moisture content <br /> (area %) (area %) (area %) (area %) (area %) <br /> soil, mg/Kg (wet in soil, % <br /> weight) <br /> 09.0019-1 <br /> <5 16 13.1 23.4 9.1 50.1 4.2 <br /> SB-43-36' <br /> 09.0019-2 <br /> 454 17 0.02 2.7 17.2 46.7 33.4 <br /> S13-41-43' <br />