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n�T4 <br /> E <br /> E^�S <br /> gm- <br /> 1 <br /> SUPERIOR ANALYTICAL LABORATORY, INC. <br /> 1555 BUFKE. UNIT I-SAN FRANCISCO. CA 94124• P:.C.%E(415) 647-2081 DOHS #1332 <br /> C E R T I F I C A T E O F A N A L Y S I S <br /> LABORATORY NO. 12119-2 DATE RECEIVED: 07/23/91 <br /> CLIENT: Alton Geo-science DATE REPORTED: 07/30/91 <br /> JOB NO. 310308 <br /> EPA SW-846 METHOD 8240 - VOLATILE ORGANICS <br /> by Gas Chromatography/ Mass Spectrometry <br /> SAMPLE: 0791041 <br /> Compound ug/l -Compound ug <br /> / <br /> 1Chloromethano N0<10 Cis-1 ,3-Dichloropropene ND<3 <br /> Bromomethane ND<10 Trichloroethene ND<3 <br /> Vinyl Chloride ND<10 Dibromochloromethane NDC3 <br /> Chloroethane ND0 0 1 , 1 ,2-Trichloroethane ND<3 <br /> Methylene Chloride ND<10 Benzene <br /> Acetone ND<10 Trans-1 ,3-Dichloropropens ND<3 <br /> Carbon disulfide ND<3 2-chloroethyl vinyl ether -ND<3 <br /> rrichlorofluoromethane ND<3 Bramoform <br /> 1 , 1-Dichloroethane ND<3 4-Methyl-2-Pentanone ND<10 <br /> 1 ,1-Dichloroethane ND<3 2-Haxanons ND<10 <br /> 1 ,2-Di (total ) ND<3 Tetrachloraethene ND<3 <br /> Chloroform ND<3 1 ,1 ,2,2-Tetrachloroetharie ND<3 <br /> ND<3 <br /> 1 ,2-Dichloroethane ND<3 Toluene <br /> 2-Butanone ND<20 Chlorobenzeno ND<3 <br /> 1 , 1 , 1-Trichloroethane ND<3 Ethylbenzene ND<3 <br /> Carbon Tetrachloride ND<3 Styrone ND<3 <br /> Vinyl AcetMte ND<10 Total Xylenes <br /> Bromodichloromethane ND<3 1 ,3-Dichlorobenzene ND<3 <br /> 1 ,2-Dichloropropane ND<3 1 ,2&1 ,4-Dichlorobenzenes N0<3 <br /> ug/l = part per billion (ppb) <br /> QC DATA: QC Limits <br /> Surrogate Recoveries soil <br /> water <br /> 76-114 81--117 <br /> 1 ,2-DCA-d4. . .. . . . . . . . . . . g6� as-110 81-140 <br /> Toluene-d8. . . . . . . . . . . . . . 101% 86-115 74--121 <br /> Bromofluorobanzene. . . . . . 98X <br /> comments: Richard Srna, Ph.D. <br /> Laborat rY r ,.or <br /> OUTSTANDING QUALITY AND SERVICE <br />