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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 />' h //www mccam bell corn E-mail main@mcrampbell com <br />' Advanced GeoEnvironmental Client Project ID Sierra Lumber Date Sampled 02/19/02 <br /> 837 Shaw Road Date Received 02/20/02 <br />' Stockton, CA 95215 Client Contact Tun Cuellar Date Extracted 02/22-02/26/02 <br /> Client P O Date Analyzed 02/22-02/26/02 <br />' Gasoline 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 GCFID(5030) <br />' Lab ID Client ID Matrix TPH(g)+ MTBE Benzene Toluene bene Xylenes %Ric at� <br /> 8 <br /> 90804 MWI/021902 W 990,a ND 16 29 48 28 ---# <br /> 90805 MW2/021902 W 32,000,a ND<100 300 260 1200 5500 110 <br /> 90806 MW4A/021902 W 14,000,a ND<35 14 120 460 1300 114 <br /> 90807 MW4B/021902 W 34,OOO,a ND<50 4100 47 1900 2100 114 <br /> 90808 MW6/021902 W ND ND ND 12 ND ND 113 <br /> I <br /> I� <br /> I <br /> i <br /> i <br /> Reporting Limit unless W 50 ug/L 5 0 0 5 05 0 5 05 <br /> otherwise stated,ND means <br /> not detected above the S � <br /> reporting limit mg 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 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 significant(aged <br /> gasolme9), 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 m"iiiscible <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 /> I <br />