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110 Second Avenue South,#D7,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> bM2HwwwrnccarnpbeIl.corn E-mail main@mccarrpbell cam <br /> Advanced GeoEnvironmental Client Project ID Fla Ci Chevron Date Sampled 07/06/98 <br /> J � h' <br /> 4005 North Wilson Way Date Received 07/08/98 <br /> Stockton, CA 95205 Client Contact Tun Cuellar Date Extracted 07111-07/12/98 <br /> Client P O Date Analyzed 07/11-07/12/98 <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 Ethylben- Xylenes %Recovery <br /> zene Surrogate <br /> 91824 MW-1 W ND 630 ND ND ND ND 95 <br /> 91825 MW-2 W ND 16 ND ND ND ND 92 <br /> 91826 MW-4 W ND 66 ND ND ND ND 94 <br /> 91827 MW-5 W ND ND ND ND ND ND 93 <br /> 91828 MW-6A W ND 70 ND ND ND ND 99 <br /> 91829 MW-6B W ND 14 ND ND ND ND 97 <br /> 91830 MW-7 W ND 79 ND ND ND ND 95 <br /> Reporting Limit unless W 50 ug/L 50 05 05 05 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 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 signtfcant(aged <br /> gasolmel), 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(9),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,j)no recognizable pattern <br /> DHS Certification No 1644 Z/Edward Hamilton,Lab Director <br />