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I 10 Second Avenue South,#D7,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> http//wwwrnSa bell com E-mail main@mccampbell com <br /> Advanced GeoEnvironmental Client Project ID #0448, Sierra Lumber Date Sampled 06/16/98 <br /> 4005 North Wilson Way Date Received 06/17/98 <br />' Stockton, CA 95205 Client Contact Tim Cuellar Date Extracted 06117-06119198 <br />' [Client P O Date Analyzed 06117-06/19/98 <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 RWQC B(SF Bay Region)method GCF1D(5030) <br /> Lab ID Client ID Matrix TPH(g)' MTBE Benzene Toluene Ethylben Xylenes %Recovery <br /> zene Surrogate <br /> 90582 MW1/g-16 W 19,000,a ND<40 1700 36 1200 1700 98 <br /> I90583 MWI1-16- W 61,000,a ND<530 7300 6900 2400 12,000 96 <br /> 98 <br /> 90584 MW�B-16 W ND ND ND ND ND 0 80 107 <br /> 1 <br /> 1 <br /> Reporting Limit unless W 50 ug/L 5 0 05 05 05 0 5 <br /> otherwise stated,ND <br />' 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 uglL <br /> "cluttered chromatogram sample peak coelutes with surrogate peak <br /> 'The following descriptions of the TPH chromatogram are cursory in nature and IvlcCampbell Analytical is not responsible for their <br /> interpretation a) unmodified or weakly modified gasoline is significant, b) heavier gasoline range compounds aresignificant(aged <br /> gasoline''), c) lighter gasoline range compounds (the most mobile Traction) are significant d) gasoline range compounds having broad <br /> chromatographic peaks are significant,biologically altered gasoline's 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 N of %,sediment,j)no recognizable pattern <br /> DHS Certification No 1644 / Edward Hamilton, Lab Director <br />