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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://www.niccanipbell.com E-mail:main@mceampbell.com <br /> John P.Cuuunings&Associates Client Project ID:#395016.00;Sierra Date Sampled:07/21/97 <br /> P.O.Box 2847 Lumber Date Received: 07/22/97 <br /> Fremont,CA 94536-2847 Client Contact:John Cummings Date Extracted:07/22-07/23/97 <br /> Client P.O: Date Analyzed: 07/22-07/23/97 <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 /> 78858 MW-1 W 57,OOO,a ND<310 6900 1000 3300 13,000 103 <br /> 78859 MW-2 W 130,OOO,a 1700 18,000 29,000 3700 19,000 102 <br /> 78860 MW-3 W 85,a ND 7.8 16 2.9 15 97 <br /> Reporting Limit unless W 50 ug/L 5.0 0.50.5 j 0.5 0.5 <br /> otherwise stated;ND <br /> means not detected above S 1.0 mg/kg 0.05 0.005 0.005 0.005 0.005 <br /> the reporting limit <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 /> '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 significant(aged <br /> gasoline?); c) lighter gasoline range compounds (the most mobile fraction) are significant; d) gasoline range compounds having broad <br /> chromatographic peaks arc significant;biologically altered gasoline?;c)TPI I 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;j)no recognizable pattern. <br /> DHS Certification No. 1644 Edward Hamilton,Lab Director <br />