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w ME <br /> Super;or Precision Analytical, Inc. <br /> . 1555 Burke,Unit I -San Fre:uisco. California 94124 - 1415f 647-2081 /fax X415)821-7 123 <br /> C E R T I F I C A T E O F A N A L Y S I S <br /> LABORA'T'ORY NO. : 12518-5 DATE SAMPLED: 10/31/91 <br /> CLIENT: Alton Geoscience DATE RECEIVED:DATE ANALYZED: 11/01 <br /> /91 <br /> JOB NO. : 310.308 /91 <br /> EPA SW-846 METHOD 8010 <br /> HALOGENATED VOLA'TIL'E ORGANICS <br /> SAMPLE: MW-2 <br /> Compound MDL (ug/L) RESULTS (ug/1) <br /> -- - <br /> Chloromethane/Vinyl Chloride 1.0 ND <br /> Bromomethane/Chloroethane 1.0 D <br /> Trichlorofluoromethane 0.5 NND <br /> 1,1-Dichloroethene <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 ISD <br /> 1,2-Dichloroethane 0.5 7.1 <br /> Trichloroethylene 0.5 ND <br /> 1,2-Dichloropropane 0.5 ND <br /> Bromodichloromethane 0.5 ND <br /> Cis-1,3-Dichloropropene 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 /> Chlorobenzene 0.5 ND <br /> Bromoform 0.5 ND <br /> 1,1,2,2-Tetrachloroethane 0.5 ND <br /> 1,3-Dichlorobenzene 0.5 ND i <br /> 1,2-Dichlorobenzene 0.5 ND ' <br /> 1,4-Dichlorobenzene 0.5 ND <br /> Cis-1,2-Dichloroethene 0.5 ND i <br /> 0.5 ND <br /> 2-Chloroethyl vinyl ether <br /> I <br /> MDL = Method Detection Limit <br /> ug/l = parts per billion (ppb) <br /> 4A/QC Summary: Daily Standard RPD = <15 <br /> MS/MSD average recovery = 82 % :MS/MSD RPD "Richard Srna, Ph.D. <br /> La ora 'ory Director - <br /> Ceaified Laboratories <br />