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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 />' hap://www,mccamp.br.li.com main@mccampbell coin <br /> IAdvanced GeoEnvironmentaI Client Protect ID Chase Chevrolet-Van Date Sampled 08110-08/11/99 <br /> 4005 North Wilson Way Buren Date Received 08/12/99 <br />' Stockton,CA 95205 Client Contact Kevin McKibben Date Extracted 08112-08/13199 <br /> Client P O Date Analyzed 08/12-08/13/99 <br />' Gasoline 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)4' MTBE Benzene Toluene Ethylben- Xylenes %Recovery <br /> zene Surrogate <br /> 17071 MW 998- 11 W 200,000,a ND<200 14,000 50,000 4000 24,000 100 <br />' 17072 MW-9698-10 W ND ND ND ND ND ND 108 <br /> 17073 MW 998-10 W 2500,a ND<10 83 63 160 33 102 <br />' 17074 MW-9998-10 W I9,000,a ND<100 120 85 1100 2400 101 <br /> 17075 MW-10/8- W 280,a ND 93 32 65 42 103 <br />' 10-99 <br /> 17076 MW-14/8- W ND ND ND ND ND ND 108 <br /> 10-99 <br /> 1017077 MW-15/8- W ND ND ND 1 3 ND 1 8 106 <br /> 10-99 <br /> 17078 MW-1618- W ND ND 1 2 50 1 1 68 104 <br /> 10-99 <br />' 17079 MW-17/8 W ND ND ND 059 ND 099 107 <br /> 10-99 <br />' Reporting Limit unless W 50 ug/L SO 05 05 05 05 <br /> otherwise stated,ND <br />' means not detected above <br /> the reporting limit S l 0 mg/kg 005 0 O05J 0 QOS 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 /> 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 /> gasolmO), 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(°),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,l)no recognizable pattern <br /> DHS Certification No 1644 Edward Hamilton,Lab Director <br /> 1 <br />