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110 Second Avenue South,##D7,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC. Telephone:925-798-1620 Fax:925-798-I622 <br /> hhtp://www,mccampbell.com E-mail:main@mccampbell.com <br /> i� <br /> I Advanced GeoEnvironrnental Client Project ID: Strong Property Date Sampled: 07/09/98 <br /> J g P riY <br /> 4005 North Wilson Way Date Received: 07/11/98 <br /> I Stockton,CA 95205 Client Contact: Tim Cuellar Date Extracted:07/14/98 <br /> IClient P.O: Date Analyzed:07/14/98 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline*,with Methyl tert-Butyl Ether*&BTEX* <br /> I 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 /> 91956 MW4-15 S ND ND ND ND ND ND 103 <br /> I <br /> I <br /> lie <br /> I <br /> I <br /> Reporting Limit unless W 50 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 I.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,soil and sludge samples in mg/kg,and all TCLP and SPLP extracts <br /> I 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 are significant;biologically altered 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 /> Ishet;n is present;i)liquid sample that contains greater than�5 vol.°/a sediment;j)no recognizable pattern. <br /> DHS Certification No. 1644 Edward Hamilton,Lab Director <br /> I <br />