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o <br />Superior Precision Anablir®cal. jnc_ <br />1555 Burke, Unit I . San Francisco, California 94124 • (4 15) 647-2081 / fax (41 5) 821-7123 <br />C E R T I F I C A T E <br />LABORATORY NO.: 54621-1 <br />CLIENT: Kleinfelder <br />JOB NO.: 24-215600E03 <br />Compound <br />O F A N A L Y <br />DATE SAMPLED: <br />DATE RECEIVED: <br />DATE ANALYZED: <br />EPA SW -846 METHOD 8010 <br />HALOGENATED VOLATILE ORGANICS <br />SAMPLE:68944 <br />Chloromethane/Vinyl Chloride <br />Bromomethane/Chloroethane <br />Trichlorofluoromethane <br />1,1-Dichloroethene <br />Methylene Chloride <br />trans-1,2-Dichloroethene <br />1,1-Dichloroethane <br />Chloroform <br />1,1,1 -Trichloroethane <br />Carbon tetrachloride <br />1,2-Dichloroethane. <br />Trichloroethylene <br />1,2-Dichloropropane <br />Bromodichloromethane <br />Cis-1,3-Dichloropropene <br />trans-1,3-Dichloropropene <br />1,1,2 -Trichloroethane <br />Tetrachloroethene <br />Dibromochloromethane <br />Chlorobenzene <br />Bromoform <br />1,1,2,2 -Tetrachloroethane <br />1,3 -Dichlorobenzene <br />1,2 -Dichlorobenzene <br />1,4 -Dichlorobenzene <br />Cis-1,2-Dichloroethene <br />Detection Limits raised due to <br />MDL = Method Detection Limit <br />ug/L = parts per billion (ppb) <br />QA/QC Summary: Daily Standard <br />MS/MSD average recovery = 103% <br />MDL (ug/L) <br />10 <br />10 <br />5.0 <br />5.0 <br />5.0 <br />5.0 <br />5.0 <br />5.0 <br />5.0 <br />5.0 <br />5.0 <br />5.0 <br />5.0 <br />5.0 <br />5.0 <br />5.0 <br />5.0 <br />5.0 <br />5.0 <br />5.0 <br />5.0 <br />5.0 <br />5.0 <br />5.0 <br />5.0 <br />5.0 <br />.p <br />S I <br />03/18/gn" F <br />03/18/92��, o <br />03/19/92 �p'f <br />9l/ <br />,t+ <br />e <br />RESULTS (ug/L) <br />-------------- <br />matrix interference. <br />ND <br />ND <br />ND <br />ND <br />ND <br />ND <br />ND <br />ND <br />ND <br />ND <br />ND <br />ND <br />ND <br />ND <br />ND <br />ND <br />ND <br />ND <br />ND <br />ND <br />ND <br />ND <br />ND <br />ND <br />ND <br />ND <br />RPD =< 15% <br />:MS/MSD RPD = 2.5% <br />Richard Srna, Ph.D. <br />Certified Laboratories <br />