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110 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br /> 4McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br />' http//www mccampbell coin E-mail main@mccampbell corn <br />' Advanced GeoEnvironmental Client Project ID Sierra Lumber Date Sampled 09/13/01 <br /> 837 Shaw Road Date Received 09/14/01 <br />' Stockton,CA 95215 Client Contact Tim Cuellar Date Extracted 09/14/01 <br /> [Client P D Date Analyzed 09/14/01 <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 Ethyl Xylenes %Recovery <br /> benzene Surrogate <br /> 77938 Influent Air 780,a ND 14 28 11 120 108 <br />' 77939 Effluent Air ND ND ND ND ND 16 101 <br /> 1 <br /> 1 <br />' Reporting Limit unless Air 50 ug/L 50 05 0 5 0 5 0 5 <br /> otherwise stated,ND <br /> means not detected above <br /> the reporting limitS 1 0 mg/kg 0 05 0 005 0 005 0 005 0 005 <br />' <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 /> t 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(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 recognizable pattern <br /> 1 <br /> DHS Certification No 1644 Edward Hamilton,Lab Director <br /> 1 <br />