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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.mccamt)bell.com E-mail:main@mccampbell.com <br /> iDate Sampled: 02/20/02 <br /> Advanced GeoEnvironmental Client Project ID:Van Buskirk-1740 <br /> ' 837 Shaw Road Houston Date Received: 02/21/02 <br /> Stockton, CA 95215 Client Contact: Bill Little Date Extracted: 02/21/02 <br /> Client P.O: Date Analyzed: 02/21/02 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline*,with Methyl tert-Butyl Ether* &BTEX* <br /> BPA 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 <br /> benzene Surrogate <br /> ' 91037 B9-50'-55' W ND,i 41 ND ND ND ND 101 <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 0.05 0.005 0.005 0.005 0.005 <br /> ' *water and vapor samples are reported in ug/L,wipe samples in us/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 /> 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 /> i <br /> ' DHS Certification No. 1644 Edward Hamilton,Lab Director <br />