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110 2nd Avenue South,#137,Pacheco,CA 94553-5560 <br /> ® McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> ' http//www mccampbell corn E-mail main@mccampbell com <br /> Advanced GeoEnvtronmental Client Prosect ID Ripon Farm Services Date Sampled 12/13/01 <br /> 837 Shaw Road Date Received 12/14/01 <br /> ' Stockton,CA 95215 Client Contact William Little Date Extracted 12/14/01 <br /> Ghent P O Date Analyzed 12/14/01 <br /> tGasoline Range(C6-C12)Volatile Hydrocarbons as Gasohne*,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 Ethyi- Xylenes %Recovery <br /> benzene Surrogate <br /> 86511 Influent Air 570,a ND ND 15 0 53 3 9 119 <br /> 86512 Effluent Air 160,a ND ND 14 ND 29 112 <br /> 1 <br /> ' Reporting Limit unless Air 50 ug/L 5 0 0 5 0 5 0 5 0 5 <br /> otherwise stated,ND <br /> means not detected above' <br /> the reporting limn S 10 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 /> cluttered chromatogram,sample peak coclutes 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('7),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,,i)no recognizable pattern <br /> ' DHS Certification No 1644 it Edward Hamilton,Lab Director <br />