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I 10 Second Avenue South,#D7, Pacheco,CA 94553 <br /> McCAMPBELL ANALYTICAL INC Telephone 510-798-1620 Fax 510-798-1622 <br /> httrs/hk%vw mccarttpbell con E-mail math@mccampbell corn <br /> • <br /> Advanced GeoEnvironmental Client Project ID West Clay Properties Date Sampled 11/17/97 <br /> 4005 North Wilson Way Date Received 11/18/97 <br />' Stockton, CA 95205 Client Contact Kevin McKibben Date Extracted 11118-11119/97 <br />' Client P O Date Analyzed 11/18-11/19/97 <br /> Gasoline Range (C6-C12)Volatile Hydrocarbons as Gasoline*, Nt ith Methl I tert-Butyl Ether* &BTEX* <br /> EPA methods 5030,modified 8015,and 8020 or 602 Cali forma RIA QCB(SF Bav Region)method GC F]D(5030) <br /> Lab ID Client ID Matrix TPH(g)+ MTBE Benzene Toluene Ethylben Xylenes %Recovery <br /> -zene Surrogate <br /> 83116 MW-Ill 1-17-97 W 820,a ND 160 6 0 47 35 100 <br /> 83117 MW-2111-17-97 W 18,000,a ND<70 1000 1600 370 3300 100 <br /> 83118 MW-3/11-17-97 W 53,a ND 2 3 058 078 1 0 103 <br />' 83119 MW-4111-17-97 W ND ND ND ND ND ND 104 <br />' 83120 MW-5111-17-97 W ND,i ND ND ND ND ND 104 <br /> 1 <br />' Reporting Limit unless W 50 ug/L ,)0 05 05 05 05 <br /> otherwise stated,ND means <br />' not detected above the S g 0 <br /> reporting Ing 005 0 005 0 005 0 005 0 005 <br /> nrt mg/kg <br /> *,tater and vapor samples are reported in ug/L,wipe samples in ugh,ipe,soil and sludge samples in mglkg and all TCLP and SPLP extracts <br /> nt ugIL <br /> N cluttered chromatogram,sample peak coelutes with surrogate peak <br /> 'The following descriptions of the TPH chromatogram are cursory in nature and tvlcCampbell Analytical is not responsible for their <br />' interpretation a) unmodified or weakly modified gasoline is significant, b) hemmer gasoline range compounds are significant(aged <br /> gasoline") c) lighter gasoline range compounds (the most mobile fiaction) are significant d) gasoline range compounds having broad <br /> chromatographic peaks are significant,biologically altered gasoline",e)TPH patten that does not appear to be derived from gasoline(9),t) <br /> one to a few isolated peaks present,g)strongly aged gasoline or diesel range compounds are significant h)lighter than „ater immiscible <br /> sheen is present,i)liquid sample that contains greater than—5 vol %sediment,a)no recognizable pattern <br /> DHS Certification No 1644 Edwaid Hamilton,Lab Director <br /> 1 <br />