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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 /> http-lwww.mccampbell.com E-mail:main@mccampbeil.com <br /> ' Advanced GeoEnviromnental Client Project ID: Hess Du Bois Date Sampled:04/18-04119/01 <br /> 837 Shaw Road Date Received: 04/23/01 <br /> ' Stockton, CA 95215 Client Contact:Bill Little Date Extracted: 04/23/01 <br /> ' [Client P.O: Date Analyzed: 04123-04/26101 <br /> Stoddard Solvent Range(C9-C12)Volatile Hydrocarbons as Stoddard Solvent& BTEX* <br /> FPA methods 5030,modified 8015,and 8020 or 602;Califomia RW B SF Bay Region)method GCFIIa 5030 <br /> ' Lab ID Client 1D Matrix TPH(ss)+ Benzene Toluene Ethyl Xylenes %Recovery <br /> benzene Surrogate <br /> 65981 MW 8-20 S 1.4,e ND ND ND ND 94 <br /> ' 65982 MW 8-30 S ND ND ND ND ND 100 <br /> t65983 MW 8-40 S ND ND ND ND ND 105 <br /> 65984 MW 8-45 S 5.8,e ND ND ND ND 107 <br /> ' 65985 MW 9-20 S 4800,e ND<0.10 ND<0.10 ND<3.0 ND<0.10 106 <br /> 65986 MW 9-30 S 960,e ND<0.10 ND<0.10 ND<0.30 ND<2.5 107 <br /> 65987 MW 9-40 S 3100,e ND<0.10 ND<0.10 ND<2.0 ND<10 83 <br /> 65988 MW 10-30 S ND ND ND ND ND 119 <br /> ' 65989 MW 10-35 S ND ND ND ND ND 109 <br /> 65990 MW 10-40 S ND ND ND ND ND 119 <br /> ' 65991 MW I045 S ND ND ND ND ND 108 <br /> Reporting limit unless W 50 u g1L 0.5 0.5 0.5 <br /> otherwise stated;ND means 0.5 <br /> ' not detected above the <br /> reporting limit S 1.0 m8lkg 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,1kg,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 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 gasoline?; e) TPH pattern that does not appear to be derived from gasoline <br /> (stoddard solvent?); f)one to a few isolated peaks present;g)strongly aged gasoline or diesel range compounds are significant;h)lighter <br /> ' than water immiscible sheen is resent;i liquid sample that contains reater than--5 vol.%sediment;' no recognizable pattern, <br /> DHS Certification No. 1644 Edward Hamilton,Lab Director <br />