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110 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-162D Fax 925-798-1622 <br /> h //www rn ea bell com E-mail main@mecampbell com <br /> IAdvanced GeoEnvironmental Client Project ID Flag City Chevron Date Sampled 06/14/01 <br /> 837 Shaw Road Date Received 06/15/01 <br /> Stockton, CA 95215 Client Contact Tun Cuellar Date Extracted 06/15-06/19/01 <br /> Client P O Date Analyzed 06115-06/19101 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline*,Vnth Methyl tert-Butyl Ether* &BTEX* <br /> EPA methods 5030,modified 8015,and 8020 or 602,California RWQCB(SF Bay Region)method GCFTD(5030) <br /> Lab ID Client ID Matrix TPH(g)} MTBE Benzene Toluene Ethyl- Xylenes %Recovery <br /> benzene Surrogate <br /> 69952 MW12B W ND ND ND 054 ND ND 107 <br /> 061401 <br /> 69953 MW 121 061401 W ND ND ND ND ND ND 107 <br /> 69954 MW12D W ND ND ND ND ND ND 105 <br /> 061401 <br /> 69955 MW13A W ND 26 13 ND ND ND 109 <br /> 061401 <br /> 69956 MW13B W ND ND ND ND ND ND 98 <br /> 061401 <br /> 69957 MWl3C W ND ND ND ND ND ND 100 <br /> 061401 <br /> • 69958 MW13D W ND ND ND ND ND ND 98 <br /> 061401 <br /> Reporting Limit unless W 50 ug/L 50 05 05 0 5 0 5 <br /> otherwise stated,ND <br /> means not detected above <br /> the reporting limn S 10 mg/kg 0 OS 0 005 0 005 0005 0005 <br /> •water and vapor samples are reported m ug/L,wipe samples in ughnpe,soil and sludge samples in mg/kg,and all TCLP and SPL.P extracts <br /> in ug/L <br /> a cluttered chromatogram,sample peak coelutes with surrogate peak <br /> +ne following descriptions of the TPH chromatogram are cursory in nature and McCampbell Analytical is not responsible for their <br /> I interpretation a) unmodified or weakly modified gasoline is significant, b) heavier gasoline range compounds are signifrcant(aged <br /> gasoline9), c) lighter gasoline range compounds (the most mobile fraction) are significant, d) gasoline range compounds havmg broad <br /> chromatographic peaks are significant,biologically altered gasolme?,e)TPH pattern that does not appear to be derived from gasoline(?),f) <br /> ane 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,1)no recognizable pattern <br /> DHS Certification No 1644 Edward Hamilton,Lab Director <br />