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SUPerior Precision Analytical, Inc. <br /> 1555 Burke. Unn I • San Francisco, California 94124 • (415)647-2091 /fax 1415)821.7123 <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. 12510-1 DATE RECEIVED: 10/30/91 <br /> CLIENT: Groundwater Technology DATE REPORTED: 11/13/91 <br /> JOB NO. 020300163 <br /> EPA SW-846 METHOD 8240 - VOLATILE ORGANICS <br /> by Gas Chromatography/ Mass Spectrometry <br /> SAMPLE: Product <br /> Compound ug/1 Compound ug/1 <br /> -- ----- -------- ----- <br /> Chloromethane ND<10 Cis--1,3-Dichloropropene . ND<3 t' <br /> BrOmomethane ND<IC Trichloroethene ND<3 <br /> Vinyl Chloride ND<10 Dibromochloromethane ND<3 <br /> Chloroethane ND<10 1,1,2-Trichloroethane ND<3 <br /> Methylene Chloride ND<10 Benzene ND11 <br /> Acetone ND<10 Tuns-1,3-Dichloropropene ND<3 <br /> Carbon disulfide ND<3 2--Chloroethyl vinyl ether ND<3 <br /> Trichlorofluoromethane ND<3 Bromoform ND<3 <br /> '^y l-Dichloroethens ND<3 4-Methyl-2-Pentanone ND<10 <br /> 1 1-Dichloroethane ND<3 2-Hexanone ND<10 <br /> 1,2-Dichloroethene (trans) ND<3 Tetrachloroethane ND<3 <br /> . Chloroform— ND<3 1,1,2.2-Tetrachloroethane 14D<3 <br /> 1,2-Dichloroethane Z1D<1 Toluene ND<3 <br /> 2-Butanane ,FD<20 Chlorobenzene ND<3 <br /> 1,1,1-Trichloroethane ND<3 . Ethylbenzene ND<3. <br /> Carbon Tetrachloride ND<3 Styrene ND<3 <br /> Vinyl Acetate ND<10 Total Xylenes (MAL=3) 7 <br /> Bromodichloromethane ND<3 1,3-Dichlorobenzene ' ND<3 <br /> 1,2-Dichloropropane ND<3 1,2&1,4-Dichlorobenzenes ND<3 <br /> 1,2-Dichloroethene (cis) ND<3 <br /> ug/l = past per billion (ppb) x. <br /> QC DATA: 3 <br /> Surrogate Recoveries QC Limits <br /> - water soil <br /> 1,2-DCA-d4. . . . . . . . . . . . . . 99% 75-114 70-12.1 <br /> Toluene-d8. . . .. . . . . . . . . . 99% 88-110 81-I17 1 <br /> Bromofluorobenzene. . . . . . 102% 86-115 74-121 i <br /> comments: <br /> Richard Srna, Ph.D. <br /> `` <br /> Laboratory Director <br /> Certified Laboratories <br />