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COLUMBIA ANALYTICAL SERVICES, INC. <br /> Analytical Report <br /> CLIENT: EMCON Associates DATE RECEIVED: 12/28/90 <br /> SUBMITTED BY: Bill Woods DATE TCLP PERFORMED: 01/03/91 <br /> PROJECT: Chevron -Tracy/#A65-04.01 DATE ANALYZED: 01/07/91 <br /> SAMPLE DESCRIPTION: Soil WORK ORDER #: K905039C <br /> TCLP Extract <br /> EPA Method 1311 <br /> Volatile Organic Analytes <br /> mg/L (ppm) <br /> Sample Name: B-2 Surface MW-2 15' <br /> Lab Code: 5039C-3 5039C-7 <br /> Analysis Regulatory <br /> Parameters Methods MRL Limit** <br /> Benzene 8020 0.01 0.5 ND ND <br /> Carbon Tetrachloride 8010 0.01 0.5 ND ND <br /> Chlorobenzene 8010 0.01 100 ND ND <br /> Chloroform 8010 0.01 6 ND ND <br /> 1,4-Dichlorobenzene 8010 0.01 7.5 ND ND <br /> 1,2-Dichloroethane 8010 0.01 0.5 ND ND <br /> 1,1-Dichloroethylene 8010 0.01 0.7 ND ND <br /> Methyl Ethyl Ketone 8020 0.1 200 ND ND <br /> Tetrachloroethylene 8010 0.01 0.7 ND ND <br /> Trichloroethylene 8010 0.01 0.5 ND ND <br /> Vinyl Chloride 8010 0.01 0.2 ND ND <br /> ND means None Detected at or above the MRL <br /> MRL means Method Reporting Limit <br /> * TCLP Extraction utilized zero headspace extractor. <br /> ** From 40 CFR Part 261, et. at. <br /> ' , r <br /> Approved by Date I <br /> 60005 <br />