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110 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> http//-A-ww mccampbell com E-mail main@mccampbell com <br /> • Advanced GeoEnvtrorunental Client Project ID Flag City Chevron Date Sampled 05/18/2000 <br /> 4005 North Wilson Way I <br /> Date Received 05/19/2000 <br /> Stockton,CA 95205 Client Contact Tim Cuellar Date Extracted 05119-05/23/2000 <br /> Client P O Date Analyzed 05119-0512312000 <br /> Gasoline Range(C6-C12) Volatile Hydrocarbons as Gasoline*,i%ith Methyl tert-Buhl Ether* & BTEX* <br /> EPA methods 5030,modified 8015,and 8020 or 602,Cal:fom:a RWQCB(SF Bay Region)method GCF1D(5030) <br /> Lab ID Client)D Matrix TPH(g)' MTBE Benzene Toluene Ethylben- Xylenes %Recovery <br /> zene Surrogate <br /> 38388 Baker Tank W ND -- ND ND ND ND 99 <br /> Reporting Limit unless W _-�0 ug/L 5 0 05 05 05 05 <br /> other\%ise stated,1\D <br /> means not detected aboN e <br /> the reposing limit S l 0 me/kg 005 0 005 0 005 0 005 0 005 <br /> afer and vapor samples are reported in ugiL,a ipe samples in ug/H ipe,soil and sludge samples:n mg Ig and al]TCLP and SPLP ei,tracts <br /> in uglL - <br /> 'cluttered chromatogram,sample peal.coelutes N iih surrogate peak <br /> 'The follo%%ing descriptions of the TPH chromatogram are cursory in nature and MCCampbell Anal�ucal is not responsible for their <br /> interpretation a) unmodified or %%calf modified gasoline is significant, b) hea-,ier gasoline range compounds are significani(aged <br /> gasoline''), c) lighter gasoline range compounds (ihe most mobile fraction) are significant, d) gasoline range compounds haking broad <br /> chromatographic peals are significant biologically altered gasohne) e)TAH pattern that does not appear to be derned from gasoline('') f) <br />. one to a feu isolated peaks present,g)strongly aged gasoline or diesel range compounds are significant,h)lighter than olio immiscible <br /> sheen is present i)liquid sample that contains greater than—5 N of %sediment j)no recognizable pattern <br /> DHS CernficPmon No 1644 L� Ed-,N aid Hamilton, Lab Director <br />