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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 /> 24 http//w%vwmccampbellco mccampbell coin E-mail main@mccampbell cam <br />' Advanced GeoEnvironmental Client Protect fD Flag City Chevron Date Sampled 12/06/00 <br />' 4005 North Wilson Way Date Received 12/08/00 <br /> Stockton,CA 95205 Client Contact Tim Cuellar Date Extracted 12/08/00 <br /> IClient P O Date Analyzed 12/08/00 <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 GCF1D(5030) <br /> ��J <br /> EH <br /> Client ID Matrix TPH(g)+ MTBE Benzene Toluene Ethen en Xylenes %Recovery <br /> ze Surrogate <br />' 55410 Influent W ND 350 ND ND ND ND 103 <br /> 55411 Effluent W ND ND ND ND ND ND 104 <br />' 55412 GAC-1 W ND ND ND ND ND ND 102 <br /> 55413 CAC-2 W ND ND ND ND ND ND 104 <br /> I <br /> I <br />' Reporting Limit unless <br /> W 50 ug/L sa os os 05 os <br /> otherwise stated,ND — <br />' means not detected above <br /> the reporting limit S 1 0 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 mg/kg,and all TCLP and SPLP extracts <br />' n ug/L <br /> "cluttered chromatogram,sample peak coelutes with surrogate peak <br />' 'The following descnpbons of the TPH chromatogram are cursory m 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 /> gasoltne9), c) lighter gasoline range compounds (the most mobile fraction)are significant,d) gasoline range compounds having broad <br /> Chromatographic peaks are significant,biologically altered gasolme9,e)TPH pattern that does not appear to be derived from gasoline(9),f) <br /> one to a few isolated peaks present,g)strongly aged gasoline or diesel range compounds are significant,h)lighter than water muniscible <br />' sheen is present,Q liquid sample that contains greater than—5 vol %sediment,j)no recognizable pattern <br /> DHS Certification No 1644 Edward Hamilton, Lab Director <br /> I <br />