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I 10 2nd Avenue South,##137, Pacheco,CA 94553-5560 <br /> MCCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> .24 h //www mccam bell corn E-mail main@mccampbell com <br /> s <br /> iAdvanced GeoEnvironmental Client Project ID Flag City Date Sampled 07/06/2000 <br /> 4005 North Wilson Way Date Received 07/07/2000 <br /> Stockton, CA 95205 Client Contact Tim Cuellar Date Extracted 07107-07/10/2000 <br />' Client P O Date Analyzed 07/07-07/10/2000 <br /> Gasolene 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 /> 42268 Baker W ND 68 ND ND ND ND 96 <br /> Tank/7-6-00 <br /> 1 <br /> 1 <br /> 1 <br />' Reporting Limit unless W 50 ug/L 50 05 05 05 05 <br /> otherwise stated,ND <br /> means not detected above <br /> Ithe reporting limit S 10 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 TYH 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 /> 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'y e)TPH pattern that does not appear to be derived from gasoline('�),t) <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 Edward Hamilton, Lab Director <br />