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1102nd Avenue South,#177,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC. Telephone: 925-798-1620 Fax: 925-798-1622 <br />' http://www.mccampbell.com E-mail: main@mccampbell.com <br />' Advanced GeoEnvironmental Client Project ID: Geweke Date Sampled: 03/14/01 <br /> 837 Shaw Road Date Received: 03/16/01 <br />' Stockton, CA 95215 Client Contact: Brian Millman Date Extracted: 03/20-03/26/01 <br /> Client P.O: Date Analyzed: 03/20-03/26/01 <br />' Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline*,with Methyl tent-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 Ethyl-' Xylenes %Recovery benzene Surrogate <br /> 62944 EWA/ W ND ND ND 0.89 ND ND 103 <br /> 03-14-01 <br />' 62945 MWI/03-14-01 W 71,j ND ND 1.3 ND ND 103 <br /> 62946 03-14-01 MW- W ND ND ND ND ND ND 100 <br /> 0 <br /> I 62947 MW3/ W ND ND ND ND ND ND 98 <br /> 03-14-01 <br /> 62948 03-14-01 MW- W 88,a ND 16 0.51 ND ND 104 <br /> 0 <br /> 62949 MW5/ W ND ND ND ND ND ND 98 <br /> 03-14-01 <br /> 62950 MW6/ W ND ND - ND ND ND ND 97 <br /> 03-14-01 <br /> lie <br /> 62951 MW7/ W ND ND ND ND ND ND 100 <br /> 03-14-01 <br /> 62952 MW8/ W• 6100,a ND 8.2 ND<10 I80 630 HI <br />' 03-14-01 <br /> 62953 MW9/ W 1100,a ND 3.4 ND<10 32 62 96 <br /> 03-14-01 <br /> 62954 MW10/ W ND ND ND ND ND ND 99 <br />' 03-14-01 <br /> 62955 MW11/03-14-01 W ND ND ND ND ND ND 100 <br />' 62956 MW 12/ W ND ND ND ND ND ND 98 <br /> 03-14-01 <br /> 62957 MW13/ W ND ND ND ND ND ND 96 <br /> 03-14-01 <br />' 62958 MW14/ W 4900,a ND<10 230 150 57 820 96 <br /> 03-14-01 <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 report limit S 1.0 mg/kg 0.05 0.005 0.005 0.005 0.005 <br /> ing <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 signifrcant(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 /> sheen is present;i)liquid sample that contains greater than—5 vol.%sediment;j)no recognizable pattern. <br /> DHS Certification No. 1644Edward Hamilton,Lab Director <br />