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110 Second Avenue South,#D7,Pacheco,CA 94553 <br />' McCAMPBELL ANALYTICAL INC Telephone 510-798-1620 Fax 510-798-1622 <br /> http//wx%wmecampbell coin E-nail main@mccampbell com <br />' Advanced GeoEnvironmental Client Project ID Grant Line Gas & Date Sampled 10/29/97 <br /> 4005 North Wilson Way Food Date Received 10/30/97 <br />' <br /> Stockton,CA 95205 Client Contact Bill Little Date Extracted 10/31-11/03/97 <br />' Client P O Date Analyzed 10/31-11/03/97 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline*,t,4 ith/Methyl tert-Butyl Ether* &BTEX* <br /> EPA methods 5030,modified 8015,and 8020 or 602,California RWQCB(SF Bay Region)method GC.F1f7(5030) <br />' Lab ID Client ID Matrix TPH(g)+ MTBE Benzene Toluene Ethylben- Xylenes %Recon cry <br /> zene Surrogate <br /> 82404 MW-1 W 330,c,a 530 120 ND 60 5 3 102 <br />' 82405 MW-2 W ND ND 2 2 ND 1 8 29 97 <br />' 82406 MW-3 W ND ND ND ND ND ND 108 <br /> 82407 MW-4 W I00'c 22 23 ND ND ND 97 <br />' 82408 MW-5 W 120,c,h 76 062 ND ND ND 94 <br /> 82409 MW-6 W ND ND ND ND ND ND 99 <br /> lie <br /> I <br />' Reporting Limit unless W 50 u /L 50 05 05 0 5 0 5 <br /> otherwise stated ND g <br />' means not detected above <br /> the reporting limit S 1 0 mg/kg 005 0 005 0 005 0 005 0 005 <br /> *slater and vapor samples are reported in ug/L,wipe samples in ug/Vripe,soil and sludge samples in mg/kg,and all TCLP and SPLP exti acts <br /> in ug/L Y <br />' a cluttered chromatogram,sample peak coelutes with surrogate peak <br /> 'The following descriptions of the TPH chromatogram are cursory in nature and McC ampbell Analytical is not responsible for their <br />' interpretation a) untnodified or weakly modified gasoline is significant b) hear ter gasoline range compounds are significant(aged <br /> gasoline") c) lighter gasoline range compounds (the most mobile fiacdon) nie significant d) gasoline range compounds having broad <br /> chromatographic peaks are significant,biologically altered gasoline",e)TPH pattei n 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 present,t)liquid sample that contains greater than--5 s of °/,.sediment i)no mcornizable pattLnl <br /> DHS Certification No 1644 /��Edwaid Hamilton, Lab Director <br /> 1 <br />