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J. H. KLEn=DER & ASSOCIATES July 1, 1986 <br /> Analysis of soil sample for B.T.X., total hydrocarbons. <br /> Sample ID: #1 (809 S. Aurora) Lab No. 86-06-015-01 <br /> The soil sample referenced above was received at the laboratory for analysis <br /> for B.T.X. (volatile aromatic compounds) and for total hydrocarbons on <br /> June 10, 1986. The results of the analyses are summarized below. All the <br /> reported values are in mg/kg (pan) based on the weight of the sample as <br /> received, without drying. <br /> B.T.X. <br /> Compound Detection Concentration <br /> Limit, mg/kg mg/kg <br /> Benzene 0.002 0.015 <br /> Toluene 0.002 0.041 <br /> Ethylbenzene 0.002 k1D <br /> o-Xylene 0.002 0.0'28 <br /> m-Xylene 0.002 0.016 <br /> p-Xylene 0.002 0.014 <br /> Total Hydrocarbons . 00 <br /> Total hydrocarbons were analyzed using capillary GC with a flame ionization <br /> detector. A mixture of aliphatic hydrocarbons containing 6 - 16 carbons was <br /> used as a reference standard. The sample contained less than 1 mg/kg total <br /> hydrocarbons. <br /> Reviewed and approved: <br /> n <br /> David Ben-Hur, Ph.D. <br /> Laboratory Manager <br />