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1 • <br />1 <br />V <br />1 10 Second Avenue South, #D7, Pacheco, CA <br />124 1 McCAMPBELL ANALYTICAL INC. Telephone: 510-798-1620 Fax :510-798-1622: <br />http://www.mcEaMpbell.com E-mail: main@mccamom <br />Advanced GeoEnvironmental Client Project ID: Certified Grocers Date Sampled: 10/15/97 <br />4005 North Wilson Way Date Received: 10/16/97 <br />Stockton, CA 95205 Client Contact: Bill Little Date Extracted: 10/16/97 <br />Client P.O: Date Analyzed: 10/16/97 <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 />Ethylben- <br />zene <br />Xylenes <br />% Recovery <br />Surrogate <br />81860 <br />P7'-8' <br />S <br />--- <br />--- <br />ND <br />ND <br />ND <br />ND <br />97 <br />81861 <br />P7'-10.5' <br />S <br />--- <br />--- <br />ND <br />ND <br />ND <br />ND <br />94 <br />Reporting Limit unless0.5 0.5 <br />W 50 ug/L. 5.0 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 ug/wipe, soil and sludge samples in mg/kg, and all TCLP and SPLP extracts <br />in ug/L <br />a 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 %9 Edward Hamilton, Lab Director <br />