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' 110 Second Avenue South,#137,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> 24 htM,//www mccampbell co E-mail rnain@mccampbell coin <br />' Advanced GcoEnvironmental Client Project ID Newfield Property Date Sampled 01/13-01115199 <br /> 4005 North Wilson Way Date Received 01/18/99 <br /> Stockton,CA 95205 Client Contact Kevin McKibben Date Extracted 01118-01/22/99 <br /> Client P O Date Analyzed 01118-01122199 <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 Chem ID Matrix TPH(g)' MTBE Benzene Toluene zene Ethylben- Xylenes %Recovery <br /> Surrogate <br /> 01889 B4/1-13-99 W 18,000,a,h,t ND<90 2000 79 1200 3200 104 <br /> 01890 B5/1-13-99 W ND,t ND ND ND ND ND 107 <br /> 01891 B6/1-14-99 W 7300,b,1,i ND<90 95 ND 59 15 ---ft <br />' 01892 B7/1-15-99 W 520,b,1,i ND ND 098 0 70 2 4 107 <br /> I� <br /> I <br />' Reporting Limit unless W 50 ug/L 5 0 05 0 5 0 5 0 5 <br /> otherwise stated,ND <br /> means not detected above' <br /> the reporting limit S 1 0 mg/kg/k 0 05 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 /> A 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 sigmficani,biologically altered gasoline'?,e)TPH pattern that does not appear to be derived from gasoline(1),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 val %sediment,j)no recognizable pattern <br /> IDHS Certification No 1644 Edward Hamilton Lab Director <br />