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# Superior precision Anal vacal, Inc. <br /> 1555 B,1rKP Urn[ t • Sart Frivw is[o Cal,,forrlEa 9412 4 • (4 15) 6q 7 2081 / fa-K 141 5) F121 /1 Z3 <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. 56656-2 DATE RECEIVED: 06/19/93 <br /> CLIENT: WESTERN GEO—ENGINEERING DATE REPORTED: 06/23/93 <br /> DATE SAMPLED : 06/18/93 PROJECT NO. R-604 <br /> DATE ANALYZED: 06/21/93 <br /> EPA SW-846 METHOD 8240 - VOLATILE ORGANICS <br /> by Gas Chromatography/ Mass Spectrometry <br /> SAMPLE: MW-2 -At- <br /> Compound <br /> t.Compound MDL ug/L Compound MDL ug/L <br /> - - <br /> Chloromethane 10 ND Cis-1, 3-Dichloropropene 3 ND <br /> Bromomethane 10 ND Trichloroethene 3 ND <br /> Vinyl Chloride 10 ND Dibromochloromethane 3 ND - <br /> Chloroethane 10 ND 1, 1, 2-Trichloroethane 3 ND <br /> Methylene Chloride 10 ND Benzene 1 ND <br /> Acetone 10 ND Trans-1, 3-Dichloropropene 3 ND <br /> Carbon Disulfide 3 ND 2-Chloroethyl vinyl ether 3 ND , <br /> Trichlorofluoromethane 3 ND Bromoform 3 ND <br /> 1 , 1-Dichloroethene 3 ND 4-Methyl-2-Pentanone 10 ND <br /> 1 , 1-Dichloroethane 3 NO 2-Hexanone 10 ND <br /> ons-1, 2-Dichloroethene 3 ND Tetrachloroethene 3 NDS"k <br /> oroform 3 ND 1, 1, 212-Tetrachloroethane 3 ND <br /> 1 , 2-Dichloroethane 1 ND Toluene 3 ND <br /> 2-Butanone 20 ND Chlorobenzene 3 ND <br /> 1 , 1 , 1-Trichloroethane 3 ND Ethylbenzene 3 ND �t <br /> carbon Tetrachloride 3 ND Styrene 3 ND z <br /> rznyl Acetate 10 ND Total Xylenes 3 ND ; <br /> Eromodichloromethane 3 ND 1 , 3-Dichlorobenzene 3 ND <br /> 1 , 2-Dichloropropane 3 ND 1, 4-Dichlorobenzene 3 ND <br /> cis-1, 2-Dichloroethene 3 ND 1, 2-Dichlorobenzene 3 ND " <br /> ug/L = parts per billion (ppb) <br /> ?.p W ANALYTE NOT DETECTED ABOVE QUANTITATION LIMIT <br /> QC DATA: <br /> Surrogate Recoveries QC LIMITS <br /> AIR <br /> 1 , 2-DCA-d,* . . . . . . . . . . . . . . 99% 76-114 <br /> U <br /> Toluene-dB . . . . . . . . . . . . . . 101% 88-110 <br /> Bromofluorobenzene. . . . . . 102% 86-115 $ ., <br /> comments: 'hJ� <br /> Richard Srna, Ph.D. <br /> .. ,i <br /> Laboratory Director ' <br /> r <br /> Certified I-eboratories <br /> ,74` <br />