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i <br /> 110 2nd Avenue South,4D7,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC" Telephone 925-798-1620 Fax 925-798-1622 <br /> htty//www mccampbell corn E-mail mai cr mci ampbell corn <br /> • <br /> Advanced GeoEnvironmentai Client Project CD Nomelhni Date Sampled 05/18/00 <br /> 4005 North Wilson Way Date Received 05/19/00 <br />' Stockton, CA 95205 Client Contact Tim Cuellar Date Extracted 05/19/00 <br /> Client P O Date Analyzed 05/19/00 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasohne*,with Methyl tert-Butyl Ether* & BTEX* <br /> LPA methods 5030 modified 8015 and 8020 or 602 California RW CB SF Bay Region)method GCFTD 5030 <br /> Lab ID Client ID Matrix TPH(g)+ MTBE Benzene Toluene Ethylben- Xylenes %Recovery <br /> zene Surrogate <br /> 38395 Inlet Air 220,a --- 055 20 091 11 98 <br /> 38396 Outlet Air 120,b --- ND 1 082 086 5 8 97 <br /> 1 <br /> I I <br /> I <br /> I <br />' Reporting Limit unless Air 50 ug/L 50 05 05 05 0 5 <br /> otherwise stated ND <br />' means not detected above <br /> the reporting limit S 1 0 mg/kg 005 0 005 0 005 0 005 0 005 <br /> water and vapor samples are reported in ug/1, 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 sigmaant(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 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 vol %sediment nol recognizable pattern <br /> DHS Certification No 1644 f, Edward Hamilton, Lab Director <br /> I <br />