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110 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> http//www mccarnpbell cam E-mail main@mccampbell com <br /> • Advanced GeoEnvironmental Client Project ID Chase Chevrolet— Date Sampled 04/12/2000 <br /> 4005 North Wilson Way Van Buren Date Received 04/13/2000 <br /> Stockton, CA 95205 Client Contact Kevin McKibben Date Extracted 04/13/2000 <br /> Client P O Date Analyzed 04/13/2000 <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 RWQCB(SF Bay Region)method GCFID(5030) <br /> Lab ID Client ID Matrix TPH(g)+ MTBE Benzene Toluene Ethylben- Xylenes %Recovery <br /> zene Surrogate <br /> 35854 Inlet/4/12/00 W 520,a ND 058 15 64 60 101 <br /> 35855 Discharge/4- W ND ND ND 066 ND 26 103 <br /> 12-00 <br /> Reporting Limit untess W 50 ug/L 50 0 5 05 05 05 <br /> otherwise stated,AID means <br /> not detected above the <br /> 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 /> to ug/L <br /> o cluttered chromatogram,sample peak coelutes with surrogate peak <br /> `The following descriptions of the TPH 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 sigriificant(aged <br /> gasohnO), c) lighter gasoline range compounds (the most mobile fraction) are significant, d) gasoline range compounds having broad <br /> chromatographic peaks are significant,biologically altered gasoline9,e)TPH pattern that does not appear to be derived from gasoline(7),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 present i)liquid sample that contains greater than—5 vol %sediment,1)no recognizable pattern <br /> DHS Certification No 1644 Edward Hamilton,Lab Director <br />