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' 110 2nd Avenue South #137 Pacheco CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br />' http//wwwmccamt)belleo E-mail main@mccampbell corn <br /> i <br />' Advanced GeoEnvironmental Client Protect ID Sierra Lumber Date Sampled 06/25/01 <br /> 837 Shaw Road Date Received 06/26/01 <br />' Stockton, CA 95215 Client Contact Tim Cuellar Date Extracted 06/26-06/27101 <br /> Client P O Date Analyzed 06126-06/27/01 <br />' Gasoline Range(C&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 GCF1D(5030) <br /> Lab ID Client ID Matrix TPH(gy MTBE Benzene Toluene Ethyl Xylenes %Recovery <br /> benzene Surrogate <br /> 70870 Influent Air 1200,a ND 38 75 17 120 ---# <br />' 70871 Effluent Air ND ND ND ND ND 0 76 99 <br /> 1 <br /> 1 <br /> r <br /> r <br /> r <br /> rReporting Lurut unless Air 50 ug/L 5 0 05 0 5 0 5 05 <br /> otherwise stated,ND <br /> means not detected above r <br /> the reporting limn �8 S l O m 0 OS 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 mglkg,and all TCLP and SPLP extracts <br /> in ug/L <br /> r "cluttered chromatogram,sample peak coelutes with surrogate peak <br /> 'The following dcscnptions 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 gasol=9 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,j)no recognizable pattern <br />' DHS Certification No 1644 Edward Hamilton,ami on,Lab Director <br /> I <br />