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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 /> 24 http//www mccampbell corn E-mail main@mccampbell corn <br /> Advanced GeoEnvironmental Client Project ID Newfield Property Date Sampled 12/04/98 <br /> 4005 North Wilson Way Date Received 12/05/98 <br /> Stockton,CA 95205 Client Contact Kevin McKibben Date Extracted 12107-12/09198 <br /> Client P O Date Analyzed 12/07-12109/98 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline*,-Aith Methyl tert-Butyl Ether* &BTEX* <br /> EPA methods 5030,modified 8015,and 8020 or 602,Cahfomia 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 /> 99689 MW-I/ W 1400,a,i ND 35 190 22 140 105 <br /> 12-4-98 <br /> 99690 <br /> MW-2/ W 45,000,a ND<2 00 5000 5400 1200 5700 94 <br /> 12-4-98 <br /> 99691 MW-3/ W ND ND ND 12 ND ND 106 <br /> 12-4-98 <br /> 99692 MW-4I W 3700,a ND<10 27 350 47 83 101 <br /> 12-4-98 <br /> 99693 MW-5/ W ND ND ND 22 ND ND 106 <br /> I12-4-98 <br /> i <br /> Reporting Limit unless W 50 ug/L 5 0 05 05 05 05 <br /> otherwise stated,ND <br /> means not detected above <br /> the reporting limit $ 1 0 mg/kg 005 0 005 0 405 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 /> 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 gasolme9,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 .tater immiscible <br /> • sheen is present,i)liquid sample that contains greater than�5.al %sediment,l)no recognizable pattern <br /> DHS Certification No 1644 1 Edward Hamilton, Lab Director <br />