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L' n' ..•. y,F' _�„ "" r.. _ , �� „�, p' nom __ t`#d .. <br /> MR <br /> it <br /> Supenor PrecisionAnalytical, Inc. <br /> I555 Burke, Unit I • San Francisco, California 94124 • )415)647.2081 /Fax)415)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. : 12.518-7 DATE SAMPLED: 10/31/91 <br /> CLIENT: Alton Geoscience DATE RECEIVED: 11/01/91 <br /> JOB N0. • 310.308 DATE ANALYZED: 11/07/91 <br /> EPA SW-846 METHOD 6010 <br /> HALOGENATED VOLATILE ORGANICS <br /> SAMPLE: MW-1 <br /> Compound MDL (ug/L) RESULTS (ug/1) <br /> - - <br /> Chloromethane/Vinyl Chloride 1.0 ND <br /> Bromomethane/Chloroethane 1.0 ND <br /> Trichlorofluoromethane 0.5 ND <br /> 1,1-Dichloroethene 0.5 ND <br /> Methylene Chloride 0.5 ND <br /> trans-1,2-Dichloroethene 0.5 ND <br /> 1 1-Dichloroethane 0.5 ND <br /> Chloroform 0.5 ND <br /> 1,1,1-Trichloroethane 0.5 ND <br /> Carbon tetrachloride 0.5 ND <br /> 1,2-Dichloroethane 0.5 0.8 <br /> Trichloroethylene . 0.5 ND <br /> 1,2-Dichloropropane 0.3 ND <br /> Bromodichloromethane 0.5 ND <br /> Cis--1,3-Dich].oropropene 0.5 ND <br /> trans-1,3-Dichloropropene 0.5 ND <br /> 1,1,2-Trichloroethane 0.5 ND <br /> Tetrachloroethene 0.5 ND <br /> Dibromochloromethane 0.5 ND <br /> Chlorobenzere 0.5 ND 1 <br /> Brontoforta . 0.5 ND <br /> 1,1,2,2-Tetrachloroethane 0.5 ND <br /> 1,3-Dichlorobenzene 0.5 ND <br /> 1,2-Dichlorobenzene 0•5 ND 4 <br /> 1,4-Dichlorobenzene 0.5 ND <br /> Cis-1,2-Dichloroethene 0.5 ND <br /> 2-�Chioroethyl vinyl ether 0.5 ND 1 <br /> MDL = Method Detection Limit <br /> ug/l = parts per billion (ppb) <br /> QA%QC Summary: Daily Standard RPD <15 <br /> =< 2 $ <br /> MS/MSD average recovery Richard Srna, Ph.D. <br /> Laboratory Dire for <br /> i <br /> i <br /> RIN Certified Laboratories <br />