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FMcCAMPBELL ANALYTICAL INC. <br /> 110 2nd Avenue South,#D7,Pacheco,CA 94553 <br /> ANALYTICAL iNC. Tele:510-798-1620 Fax:510-798-1622 <br /> Ad-,2nced GeoEnvironmental,Inc. Client Project ID:Hess Dubois Date Sampled: 12/17/96 <br /> 1 1803 Nest March Lane,Suite A Date Received: 12/18/96 <br /> Stockton,CA 95207 Client Contact:Bill Little Date Extracted: 12/19/96 <br /> Client P.O: Date Analyzed: 12/19/96 <br /> Stoddard Solvent Range(C9-Cl2) Volatile Hydrocarbons as Stoddard Solvent*,i}ith MTBE*&BTEX* <br /> ' FPA methods 5030.modified 8015.and 8020 or 602:CaEifornia RNV CB OF BavRegion method GCFID 5030 <br /> Lab ID Client ID Matrix TPH(ss)+ MTBE Benzene Toluene Ethylben- Xylenes %Rec. <br /> zene Surrogate <br /> 72171 MW I/12-17-96 W 120,e --- 0.85 2.1 ND 1.8 100 <br /> 72172 MW2112-17-96 W 680.e -- 2.7 7.1 0.83 7.4 97 <br /> 72173 MW4112-17-96 W ND --- 2.0 5.3 I 0.66 3.4 105 <br /> I <br /> ' 72174 MW3/12-17-96 W 1700,e,f --= 4.6 7.6 8.9 11 100 <br /> 72175 M W 5112-17-96 W ND 2.5 6.1 0.61 3.1 102 <br /> 1 <br /> I <br /> Reporting Limit unless W 50 ug/L 5.0 0.5 0.5 0.5 0.5 <br /> 1otherwise stated;ND <br /> means not detected <br /> above the reporting Iimit S 1.0 mg/kg 0.05 0.005 0.005 0.005 0.005 <br /> 1 *water and vapor samples are reported in ug/L,soil and sludge samples in mg/kg,and all TCLP extracts in mg/L <br /> u <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 <br /> responsible for their interpretation:a) unmodified or weakly modified gasoline is significant;b) heavier asoline <br /> range compounds are si��cant(aged gasoline?);c)li�htergasoline range compounds(the most mobile action) <br /> are significant; d) asoCane range compounds having Tiroad chromatographic peaks are significant;biologically <br /> altered gasoline?;e5 TPH pattern that does not appear to be derived from gasoline(stoddard solvent?);f)one to <br /> a few isolated peaks present;g) stron�y aged gasoline or diesel range compounds are significant;h lighter than <br /> NN-ater immiscible sheen is present; illiquid sample that contains greater than — 5 Vol. % sediment; j) no <br /> recognizable pattern. <br /> '' DHS Certification No. 1644 / Ed,,,,ard Hamilton,Lab Director <br />