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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 /> h //www mccam bell com E-mail main@mccampbell com <br /> Advanced GeoEnvironmental Client Project ID Three B's Date Sampled 05/26/00 <br /> 4005 North Wilson Way Date Received 05/31/00 <br /> Stockton,CA 95205 Client Contact Tun Cuellar Date Extracted 05/31-06/01/00 <br /> Client P O Date Analyzed 05/31-06/01/00 <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 Client ID Matrix TPH(g)+ MTBE Benzene Toluene Ethylben- Xylenes %Recovery <br /> zene Surrogate <br /> 39050 MW10/05-26 W 3100,a ND<100 920 37 46 110 106 <br /> 39051 MW20/05-26 W 3300,a ND<100 970 110 30 120 103 <br /> 39052 MW30/05-26 W 26,000,a ND<900 4700 490 520 1500 98 <br /> 39053 MW/ -26 W ND 36 ND ND ND ND 100 <br /> 00 <br /> 39054 MW/ -26 W 95,a ND 1 9 065 ND ND 102 <br /> 00 <br /> 39055 MW50/05-26 W 14,000,a ND<630 3100 100 180 200 103 <br /> Reporting Limit unless W 50 ug/L 50 05 05 05 05 <br /> otherwise stated,ND <br /> means not detected above <br /> the reporting limit S 10 mg/kg 005 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 mglkg,and all TCLP and SPLP extracts <br /> in ug/L <br /> u 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 signiticant(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 gasolme?,e)TPH pattern that does not appear to be derived from gasoline(1),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 *Edward Hamilton, Lab Director <br />