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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 /> 11411//www mccamabell com E-mail main@rnccarnpbell corn <br /> ' Advanced GeoEnviromnental Client Project ID Ripon Farm Sery Date Sampled 02/19/02 <br /> 837 Shaw Road Date Received 02/20/02 <br /> ' Stockton, CA 95215 Client Contact Bill Little Date Extracted 02/22-02/26/02 <br /> Client P O Date Analyzed 02/22-02126/02 <br /> ' Gasoline Range(C&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 Ethyl Xylenes %Recovery <br /> benzene Surrogate <br /> 90799 MW 022-19 W ND ND ND ND ND ND 106 <br /> 90800 MW2022-19 W 1800,a ND 60 25 81 66 <br /> 90801 MW3/02-19- W 160 b h ND ND ND <br /> 02 > > ND 0 63 118 <br /> ' 90802 MW 022'19- W I00,f ND ND ND ND ND 105 <br /> 90803 MW 022- 19- W ND ND ND i ND ND ND 100 <br /> 1 <br /> ' Reporting Limit unless W 50 ug/L 50 05 0 5 0 5 05 <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 to 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 TM 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?,c)TPII 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 Edward Hamilton,Lab Director <br />