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'mw110 2nd Avenue S th, #D7, Pacheco, CA 94553-5560 <br />McCAMPBELL ANALYTICAL INC. Telephone: 925-798-1620 Fax: 925-798-1622 <br />24 hap://www.mccwWbell.com E-mail: main@mccampbell.com <br />Cambria Environmental Technology <br />1144 65`h Street, Suite C <br />Oakland, CA 94608 <br />Client Project ID: Chevron- <br />Stockton <br />Date Sampled: 02/09/01 <br />Date Received: 02/09/01 <br />Client Contact: John Riggi <br />Date Extracted: 02/09/01 <br />Client P.O: <br />Date Analyzed: 02/09-02/10/01 <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 RWQCB (SF Bay Region) method GCFID(5030) <br />Lab ID <br />Client ID <br />Matrix <br />TPH(g)+ <br />MTBE <br />Benzene <br />Toluene <br />Ethyl- <br />benzene <br />Xylenes <br />% Recovery <br />Surrogate <br />59829 <br />P-1-5' <br />S <br />ND <br />ND <br />ND <br />ND <br />ND <br />ND <br />103 <br />59830 <br />D-1-4 <br />S <br />5.5,a <br />ND<0.1 <br />0.26 <br />1.4 <br />0.11 <br />0.56 <br />119 <br />59831 <br />D-2-4.5 <br />S <br />ND <br />ND <br />ND <br />ND <br />ND <br />ND <br />115 <br />59832 <br />D-3-4 <br />S <br />ND <br />ND <br />ND <br />ND <br />ND <br />ND <br />103 <br />59833 <br />D-4-3.5 <br />S <br />1.3,a <br />ND <br />ND <br />0.020 <br />0.010 <br />0.080 <br />112 <br />59834 <br />D-5-4 <br />S <br />ND <br />ND <br />ND <br />ND <br />ND <br />ND <br />109 <br />59835 <br />D-6-4 <br />S <br />ND <br />ND <br />ND <br />ND <br />ND <br />ND <br />106 <br />Reporting Limit unless <br />otherwise stated; ND <br />means not detected above <br />the reporting limit <br />W <br />50 ug/L <br />5.0 <br />0.5 <br />0.5 <br />0.5 <br />0.5 <br />S <br />1.0 mg/kg <br />0.05 <br />0.005 <br />0.005 <br />0.005 <br />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 />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 f Edward Hamilton, Lab Director <br />