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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 /> http://www.mSc bell.com E-mail: main@mccampbell.com <br /> Advanced GeoEnvironmental Client Project ID: Weldon Church Prop. <br /> Date Sampled: 05/17/01 <br /> 837 Shaw Road Date Received: 05/18/01 <br /> Stockton, CA 95215 Client Contact: Nuel Henderson Date Extracted: 05118-05/21101 <br />' Client P.O: Date Analyzed: 05/18-05/21/01 <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 RW CB(SF Bay Region)method GCFID(5030) <br /> Lab ID Client ID Matrix TPH(g)+ MTBE Benzene Toluene Ethyl Xylenes %Recovery <br /> benzene Surrogate <br />' 67878 MWI/ W 960,a NDW4.118 31 109 <br /> 05-17-01 <br /> 67878 MW2/ W ND NDND ND 105 <br /> 05-17-0167880MW3/ W ND NDND ND 104 <br /> 05-17-01 <br /> 67881 MW4/ W 4100,a ND88 120 111 <br /> 05-17-01 <br /> 67882 MW5/ W ND ND ND ND ND ND 107 <br /> 05-17-01 <br />' 67883 05-17-01 W ND ND ND ND ND ND 107 <br /> 67884 MW61/OS-17-0! W ND ND ND ND ND ND 105 <br /> i 67885 MW7/ W 300,d ND ND ND ND ND 114 <br /> 05-17-01 <br /> 1 <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 1.0 mg/kg 1 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 /> 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 /> 10 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 r-5 vol.%sediment;j)no recognizable pattern. <br /> DHS Certification No. 1644 LEdward Hamilton, Lab Director <br /> 1 <br />