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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 niccam bell com E-mail main@mccampbell com <br />' Advanced GeoEnvironmental Client Project ID Manteca City Yard Date Sampled 07/11/01 <br /> 837 Shaw Road Date Received 07/12/01 <br /> Stockton, CA 952I5 Client Contact Bnan Millman Date Extracted 07/12-07/16/01 <br /> Client P O Date Analyzed 07112-07/16/01 <br />' Gasoline Range(C&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 /> Ethyl- %Recovery <br />' Lab ID Client ID Matrix TPH(g)* MT13E Benzene Toluene Xylenes <br /> benzene Surrogate <br /> 72274 M W l/ W ND ND ND ND ND ND 104 <br /> 071101 <br /> 72275 071101 W ND ND ND ND ND ND 102 <br /> 72276 MW3/071I01 W ND ND ND ND ND ND 104 <br /> t72277 MW4/071101 W ND<330 10,000 ND ND ND ND 102 <br /> r <br /> Reporting Limit unless W 50 ug/L 5 0 0 5 05 0 5 0 5 <br /> otherwise stated,ND <br /> means not detected above <br /> the reporting limit m S 1 0 /k 005 0 005 0 005 0 005 0 005 <br /> mg/kg <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 /> "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(v),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 15 present,i)liquid sample that contains greater than—5 vol %sediment,})no recogtiizable pattern <br /> DHS Certification No 1644 Edward Hamilton,Lab Director <br /> i <br />