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1 <br /> 110 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br />' McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> 14 http//www mccampbell com E-mail main@mccampbell corn <br /> i <br />' Advanced GeoEnvironmental Client Project ID Sierra Lumber Date Sampled 07/24/01 <br /> 837 Shaw Road Date Received 07/27/01 <br /> Stockton, CA 95215 Client Contact Tim Cuellar Date Extracted 07/27-07/30101 <br /> IClient P 0 Date Analyzed 07/27-07/30/01 <br /> Gasoline Range(C&C12)Volatile Hydrocarbons as Gasohne*, 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 Client ID Matrix TPH(g)+ MTBE Benzene Toluene Ethyl Xylenes %Recovery <br /> ID benzene Surrogate <br /> 73509 MW1/072401 W 2200,a ND 78 3 3 120 110 109 <br /> 73510 MW2/072401 W 25,000,a ND<200 400 430 850 4500 103 <br /> 73511 MW40A10724 W 23,000,a ND<35 160 710 760 3300 106 <br /> 73512 MW4B/07240 W 61,000,a ND<200 4100 6500 2000 7800 102 <br />' 73513 MW6/072401 W 74,f ND ND 14 ND ND 101 <br /> 73514 MW8/072401 W ND ND ND ND ND ND 104 <br /> I <br />■ Reporting Limit unless W 50 uglL. 5 0 0 5 0 5 0 5 0 5 <br /> otherwise stated ND <br /> I means not detected above <br /> the reporting limit S 1 0 mg/kg 0 05 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 /> I "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 gasoline9,e)TPH pattern that does not appear to be derived from gasoline(9),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 reLogmzable pattern <br /> DHS Certification No 1644 Edward Hamilton,Lab Director <br /> I <br />