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I 10 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-I622 <br /> httn//www,mccampbell com E-mail main@mccampbell com <br /> Advanced GeoEnvironmental Client Project ID Langstons Market Date Sampled 06/12/00 <br /> 4005 North Wilson Way Date Received 06/13/00 <br /> Stockton, CA 95205 Client Contact Tony Mikacich Date Extracted 06/13-06/15/00 <br /> Client P O Date Analyzed 06/13-06/15/00 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasohne*, 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 1D Matrix TPH(g)+ MTBE Benzene Toluene Ethylben- Xylenes %Recovery <br /> zene Surrogate <br /> 40186 MW 10/06-12 W 3500,a ND<10 I80 210 110 590 97 <br /> 40187 MW 006-12- W ND ND ND ND ND ND 100 <br /> 40188 MW 006-12- W ND 10 ND ND ND ND 100 <br /> 40189 MW4//006-12 W ND ND ND ND ND ND 99 <br /> Reporting Limit unless W 50 ug/L 5 0 0 5 05 05 0 5 <br /> otherwise stated,ND <br /> means not detected above <br /> the reporting limit S ] 0 m 005 0 005 0005 0 005 0 005 <br /> �g <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 /> I <br /> in ug/L _ <br /> i <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 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,iy hGuid sample that contains greater than—5 of %sediment J)no recognizable pattern <br /> DHS Certification No 1644 Edward Hamilton, Lab Director <br />