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1 <br /> I 10 Second Avenue South,##D7,Pacheco,CA 94553 <br /> McCAMPBELL ANALYTICAL INC. Telephone: 510-798-1620 Fax :510-798-1622 <br /> ht ://www,mccampbell.com E-mail:main@mccampbell.com <br /> Advanced GeoEnvironmental Client Project 1D: Hess DuBois Cleaners Date Sampled: 06/03/97 <br /> 1803 West March Lane, Ste A Date Received:06/04/97 <br /> ' Stockton, CA 95207 Client Contact: Bill Little Date Extracted: 06/06-06109197 <br /> Client P.O: Date Analyzed: 06106-06109197 <br /> ' Stoddard Solvent Range(C9-C12)Volatile Hydrocarbons as Stoddard Solvent*,with MTBE* &BTEX* <br /> ) <br /> ' EPA methods 5030,modified 8015,and 8020 or 602;Califomia RWQCB(SF Bay Region)method GCFID(5030) <br /> Lab ID Client ID Matrix TPH(ss)* MTBE Benzene Toluene Ethylben- Xylenes %Recovery <br /> zene Surrogate <br /> 77096 MW1/6-3-97 W ND ND ND ND ND ND 103 <br /> ' 77097 MW2/6-3-97 W 470,e ND ND ND ND ND 96 <br /> 77098 MW3/6-3-97 W 2800,e?,f 37 5.9 4.1 9.1 4.4 105 <br /> 77099 MW4/6-3-97 W ND ND ND ND ND ND 98 <br /> 77100 MW5/6-3-97 W ND ND ND ND ND ND 100 <br /> t <br /> ' Reporting Limit unless <br /> W 50 uglL 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 0A5 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 uglL <br /> cluttered chromatogram;sample peak coelutes with surrogate peak <br /> 'The following descriptions of the TPH chromatogram are cursory in nature and IvlcCampbell Analytical is not responsible for their <br /> interpretation: a) unmodified or weakly modified gasoline is significant; b) heavier gasoline range compounds are significam(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 <br /> (stoddard solvent);f)one to a few isolated peaks present;g)strongly aged gasoline or diesel range compounds are significant;h)lighter than <br /> water immiscible sheen is present;i)liquid sample that contains greater than--5 vol.%sediment;j)no recognizable pattern. <br /> DHS Certification No. 1644 „ zz Edward Hamilton,Lab Director <br /> 1 <br />