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1102nd Avenue South,#D7,Pacheco,CA 94553-5560 <br /> 124 McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> http//www mccampbell corn E-mail main@mccampbell corn <br /> Advanced GeoEnvironmental Client Project ID Chase Van Buren Date Sampled 12/28/00 <br /> 4005 North Wilson Way Date Received 12/29/00 <br /> Stockton, CA 95205 Client Contact Paul Dotson Date Extracted 12/29/00 <br /> Client P 0 Date Analyzed 12/29/00 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline*,with Methyl tert-Butyl Ether* &BTEX* <br /> EPA methods 5030,modified 8015,and 8020 or 602 California RW CB SF Bay Region)method GCFID 5030 <br />' Lab ID Client ID Matrix TPH(g){ MTBE Benzene Toluene Ethylben- Xylenes %Recovery <br /> zene Surrogate <br /> 57076 Inlet- Air 71,b --- ND 050 ND 28 101 <br />' 12128/00 <br /> 1 <br />' Reporting Limit unless Air 50 ug/L 50 05 05 05 05 <br /> otherwise stated,ND <br />' means not detected above <br /> the reporting limit S 1 0 mg/kg 005 0 005 0 005 0 005 0 005 <br /> *water and vapor samples are reported in ug/L,wipe samples in ug/wipe,soil and sludge samples in mg/kg,and all TCLP and SPLP extracts <br /> in ug/L <br />' A cluttered chromatogram,sample peak coelutes with surrogate peak <br /> 'The following descriptions of the TPf1 chromatogram are cursory in nature and McCampbell Analytical is not responsible for their <br />' interpretation a) unmodified or weakly modified gasoline is significant, b) heavier gasoline range compounds are sign ih cant(aged <br /> gasoline?) c) lighter gasoline range compounds (the most mobile fraction) are significant, d) gasoline range compounds having broad <br /> chromatographic peaks are significant biologically altered gasolme9,e)TPH pattern that does not appear to be derived from gasoline(9) f) <br /> one to a few isolated peaks present g)strongly aged gasoline or diesel range compounds are significant, h)lighter than water immiscible <br />' sheen is presen,,i liquid sample that contains greater than--5 vol %sediment, no reco nizWe pattern <br /> DHS Certification No 1644 Edward Hamilton,Lab Director <br />