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Trace Analysis Laboratory,Inc <br /> LOG NUMBER: 4882 <br /> DATE SAMPLED: 10/25/94 <br /> DATE RECEIVED: 10/26/94 <br /> DATE ANALYZED: 10/27/94 <br /> DATE REPORTED: 11/04/94 <br /> PAGE: Two <br /> Sample- Type: Vapor <br /> Method Blank <br /> Method and Concen- Reporting <br /> Constituent: Units tration Limit <br /> Modified DHS Method: <br /> Total Petroleum Hydro- <br /> carbons as Gasoline mg/m3 ND 10 <br /> Modified EPA Method 8020 for: <br /> Benzene mg/m3 ND 0.10 <br /> Toluene mg/m3 ND 0.10 <br /> Ethylbenzene mg/m3 ND 0.10 .y <br /> Xylenes mg/m3 ND 0.30 • <br /> OC Summary:_ <br /> Recovery: 93* <br /> RPD: 36 <br /> Concentrations reported as ND were not detected at or above the reporting limit. <br /> * The Recovery for vapor samples is based on the Laboratory Control Sample. <br /> Louis W. DuPuis <br /> Quality Assurance/Quality Control Manager <br />