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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 /> htt //www mccam bell corn E-mail main@mccampbell wm <br />' Advanced GeoEnvironmental Client Project ID Sierra Lumber Date Sampled 01/18/01 <br />' 4005 North Wilson Way Date Received 01/24/01 <br /> Stockton, CA 95205 Client Contact Tim Cuellar Date Extracted 01/25-01/26/01 <br />' Client P O Date Analyzed 01/25-01/26/01 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline*,with Methyl tent-Butyl Ether* & BTEX* <br />' EPA methods 5030,modified 8015 and 8020 or 602,California RW B SF Bay Region)method GCFTD 5030 <br /> Lab ID Client ID Matrix TPH(g)+ MTBE Benzene Toluene Ethyl- Xylenes %Recovery <br /> benzene Surrogate <br /> 58607 MWI/ W 1700,a ND 140 2 4 98 77 106 <br />' 011801 <br /> 58608 MW4A/ W 54,000,a ND<200 310 5100 1900 8900 104 <br /> 011801 <br />' 58609 MW4B/ W 66,000,a,i ND<200 5000 9400 2300 9400 103 <br /> 011801 <br /> 58610 MW01180011 W 110d ND ND 2 7 ND ND 104 <br />' 58611 MW8/ W ND ND ND ND ND ND 105 <br /> 011801 <br /> Ila <br /> I <br /> I <br /> I <br /> I <br /> Reporting Limit unless W 50 ug(L 5 0 0 5 05 0 5 0 5 <br /> otherwise stated ND <br /> I 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/L,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 eoelutes with surrogate peak <br /> 'The following descriptions of the TPH chromatogram are cursory in nature and McCampbell Analytical is not responsible for thea <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 <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 Ii uid sample that contains&Leater than--5 vol %sediment no recognizable pattern <br /> DHS Certification No 1644 `� Edward Hamilton, Lab Director <br />