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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 /> hblW://www.mccampbell.com E-mail: main@mccampbell.com <br /> Advanced GeoEnvironmental Client Project ID:Elkhorn Date Sampled: 04/27/99 <br /> 4005 North Wilson Way Date Received: 04/30/99 <br /> Stockton,CA 95205 CIient Contact:Bill Little Date Extracted: 04/30-05/01/99 <br /> Client P.O: Date Analyzed: 04130-05/01/99 <br /> 1 Gasoline Range(C&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 /> J 10191 MW-I W ND ND ND ND ND ND 105 <br /> =a 10192 MW-2 W 650,bj IS 0.54 0.88 ND 0.99 114 <br /> } 10193 MW-3 W 2000,a ND<10 33 150 86 370 105 <br /> 10194 MW-4 W ND ND ND ND ND ND 102 <br /> 10195 MW-5 W ND ND ND ND ND ND 101 <br /> 10196 MW-6 W ND ND ND ND ND ND 101 <br /> 10197 IAS-1 W ND ND ND 0.55 ND 2.0 105 <br /> 10198 IAS-2 W 400,a ND 3.2 13 15 82 102 <br /> L-_a <br /> .J <br /> ..J <br /> Reporting Limit unless W50 ug/L 5.0 0.5 0.5 0.5 0.5 <br /> otherwise stated;ND <br /> means not detected above <br /> the reporting limit S 1.0 mg/kg 0.05 0.005 0.005 0.005 0.005 <br /> :.� <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 /> "cluttered chromatogram;sample peak coelutes with surrogate peak <br /> J 'The following descriptions of the TPH chromatogram arc 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 significant(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 allered gasoline?.e)TPH pattern that does not appear to be derived from gasoline(?);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;j)no recognizable pattern. <br /> DHS Certification No. 1644 .•yAll, Edward Hamilton,Lab Director <br />