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110 Second AVCnUC South,#D7, Pacheco,CA 94553 <br /> McCAMPBELL ANALYTICAL INC. Telephone :925-798-1620 Fax : 925-798-1622 <br /> � i <br /> htipa/tv+vu'.mccampbcli�com E-mail: main@mccampbeEl.com <br /> Advanced GeoEnvironrrtental Client Project ID:#95-0185; Shockey& <br /> Date Sampled: 04/07/98 <br /> ' 4005 North Wilson Way Sons i Date Received: 04/08/98 <br /> Stockton,CA 95205 Client Contact:Bill Little Date Extracted: 04108-04/09/98 <br /> I <br /> [Client P.O. Date Analyzed: 04108-04/09/98 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline,witl 1'`lethyl tert-Butyl Ether* &BTEX* <br /> EPA methods 5030,modified 8015,and 8020 or 602;California RWQC'©;SF Bay Region)method GCTID(5030) <br /> ' Lab ID Client ID Matrix TPH(g)+ MTBE Benzene Toluene Ethylben- Xylenes %Recovery <br /> zone Surrogate <br /> 87871 MW-1 W 130,g,h ND ND 0.67 ND 0.67 103 <br /> 87872 MW-2 W ND ND ND ND ND ND 103 <br /> 87873 MW-3 W ND ND ND ND N17 ND 105 <br /> 87874 MW-4 W 190,g,h ND 1.1 ND ND ND 103 <br /> Reporting Limit unless IN 50 u / - <br /> otherwise stated;ND <br /> ug/L 5.0 0.� 0.5 0.5 0.5 <br /> 1 means not detected above <br /> the reporting limit S 1.0 mg/kg 0.05 0.005 0.005 0.005 0.005 <br /> *water and vapor samples are reported in ug/L,wipe samples in ug/wipe.suit and sludge saoiplcs in mg/kg,and all TCLP and SPLP extracts <br /> in ug/L <br /> cluttered chromatogram;sample peak coelutes with surrogate peak <br /> 'The following descriptions of the TPH chromatogram are cursory in nature and McC'amphell Analytical is not responsible for their <br /> interpretation: a) unmodified or weakly modified gasoline is significant; b) heavier gasoline range compounds are sign i ficant(aged <br /> gasoline?); c) lighter gasoline range compounds (the most mobile fraction) are sienifcant. d) gasoline range compounds having broad <br /> chromatographic peaks are significant;biologically altered gasoline?;c)'rPH pattern that does not appear to be derived from gasoline(?);t) <br /> one to a few isolated peaks present;g)strongly aged gasoline or diesel range compounds arc significant;h) lighter than water immiscible <br /> sheen is present;i)liquid sample that contains greater than—5 vol.'%,sediment:j)no recognizable panern. <br /> DHS Certification No. 1644 Edward Hamilton,Lab Director <br />