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I <br /> 110 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> Iht //www mccam bell corn E-mail main@mccampbell cam <br /> IAdvanced GeoEnvironmental CIient Project ID Stockton Fire Station Date Sampled 03/13/02 <br /> 837 Shaw Road Date Received 03/14/02 <br /> IStockton, CA 95215 Client Contact William Little Date Extracted 03/14-03/15/02 <br /> Chent P O Date Analyzed 03/14-03/15/02 <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 Ethyl- Xylenes %Recovery <br /> benzene Surrogate <br /> 70263-2-5 <br /> -00011 0 Influent Air 82,a ND ND ND ND 22 94 <br /> 7 <br />' 020325 <br /> 7-002 Effluent Air I l 0,a ND ND 87 1 9 12 108 <br /> lie <br /> Reporting Limit unless Air 50 ug/L. 5 0 0 5 05 05 05 <br /> otherwise stated,ND <br /> means not detected above <br /> the reporting limit S 1 0 mg/kg 0 05 0 005 0 005 0 005 0 005 <br /> "water and air samples are reported in ug/L,wipe samples in ug/wipe,soil and sludge samples in mg/kg,and all TCLP and SPLP extracts in <br /> ug/L <br /> I *cluttered chromatogram,sample peak coelutes with surrogate peak <br /> 'The tollowing descriptions of the TPH chromatogram are cursory in nature and McCampbell Analytical is not responsible for their <br /> I interpretation a) unmodified or weakly modified gasoline is significant b) heavier gasoline range compounds are sigmticant(aged <br /> gasohne9) 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)TP14 pattern that does not appear to be derived from gasoline(?),f) <br /> • one to a tew 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 i)no recognizable pattern <br /> DHS Certification No 1644 Edward Hamilton, Lab Director <br /> I <br />