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CHEVRONTEXACO ENERGY RESEARCH AND TECHNOLOGY COMPANY <br /> INTEGRATED LABORATORY TECHNOLOGIES UNIT <br /> PROJECT SUMMARY <br /> Pi,Ject No. 2004.0023 Requested by Scott Mansholt <br /> Date Initiated 2/19/04 Location CEMC, K2050 <br /> Date Completed 3/10/04 6001 Bollinger Canyon Rd., <br /> Charge Code YWETS0110206 San Ramon,CA 94583-2324 <br /> Phone 842-1804 <br /> Project Description: Analyze a soil sample labeled SS-I-A/SS-I-B composite from a location adjacent to <br /> the SSJID Pipeline in Tracy,CA. Determine the nature of any hydrocarbon present. <br /> Results: The hydrocarbon in sample SB-3-1 1 is most likely a weathered crude oil. It could also possibly <br /> be a weathered bunker fuel.The hydrocarbon has a carbon range from Cs to beyond C,,,,.It has lost most <br /> of its visible normal paraffins to biodegradation but retains prominent isoprenoid paraffins. It contains <br /> prominent biomarkers in the C„to Cao range, typical of many SIV crudes and bunker fuels refined from <br /> SIV crudes. <br /> SB-3-11 <br /> C5-, area% 0.0 <br /> C,5-C io,area% 4.0 <br /> C„-C,.,,area% 18.1 <br /> C,;-C,a,area% 52.6 <br /> C,9+,area% 25.3 <br /> n-C,�/Pristane area ratio 0.24 <br /> Pristane/phytane area ratio 1,27 _ <br /> Approximate concentrationin 1 100 - <br /> soil,mV kg <br /> Analytical Approach: The sample was extracted with carbon disulfide and analyzed by gas <br /> chromatography using a flame ionization detector to determine the hydrocarbon composition through C„- <br /> Analyzed by:G. C.Chen <br /> Reported by: E.A. Harvey <br /> Reviewed by:G.C.Chen gcc <br /> SMansholt <br /> TDelFrate <br /> SFSciamanna <br /> A W Verstuyft <br /> GCChen <br /> EAHarvey <br /> Technical Files <br /> ECTfile <br /> 5 _ <br />