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I 10 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC 'Telephone 925-798-1620 Fax 925-798-1622 <br /> h //www mccam bell cam E-mail main@mccampbell com <br /> Advanced GeoEnvironmental Client Pro3ect ID Sierra Lumber Date Sampled 12/13/01 <br /> 837 Shaw Road Date Received 12/14/01 <br />' Stockton, CA 95215 Client Contact Tim Cuellar Date Extracted 12/14/01 <br /> Cheat P O Date Analyzed 12/14/01 <br /> iGasoline 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 GrCF1D(5030) <br />' Lab ID Client ED Matrix TPH(g)* MTBE Benzene Toluene Ethyl- Xylenes %Recovery <br /> benzene Surrogate <br /> 86509 Influent Air 88,b ND ND 1 3 0 98 12 114 <br />' 86510 Effluent Air ND ND ND ND ND 18 101 <br /> r <br /> Reporting Limit unless Air 50 ug/L 50 0 5 0 5 0 5 0 5 <br /> otherwise stated,ND _ <br /> means not detected above S 1 0 mg/!cg 005 0 005 0 005 0 00-51 <br /> 05 0 405 <br /> the reporting limit <br /> water and air samples are reported in ug/L,wipe samples in ug/wipe,soil and sludge samples in mg/kg,and all TCLP and SPLP extracts in <br /> ug/L <br /> "cluttered chromatogram,sample peak coelutes with surrogate peak <br /> `The following descriptions of the TPH chromatogram are cursory in nature and NlcCampbell 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 gasolme9 e)TPH pattern that does not appear to be derived trorn gasoline(9),0 <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 j)no recognizable pattern <br /> DHS Certification No 1644 Edward Hamilton,Lab Director <br />