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1 IY <br /> Trace Analysis Laboratory, Inc. <br /> Telephone (510) 783-6960 <br /> 3423 Investment Boulevard, #8 + Hayward, California 94545 Facsimile (510) 783-1512 <br /> LOG NUMBER: 5831 <br /> DATE SAMPLED: 09/15/95 <br /> DATE RECEIVED: 09/15/95 <br /> DATE ANALYZED: 09/15/95 <br /> DATE REPORTED: 09/19/95 <br /> 1 <br /> CUSTOMER: Clearwater Group, Inc. <br />' REQUESTER Jeanna Hudson <br />' PROJECT: No. D-102, Ekholm <br /> Sample Type- Vapor <br />' VW-1 VW-2 VW-3 <br /> Method and Concen- Reporting Concen- Reporting Concen- Reporting <br />' Constituent. Units tration Limit tration Limit tration Limit <br /> Modified DHS Method: <br />' Total Petroleum Hydro- <br /> carbons as Gasoline mg/m3 ND 10 30 10 ND 10 <br /> 10enzene <br /> PA Method 8020 for: <br /> mg/m3 ND 0.10 NO 0.10 NO 0.10 <br /> Toluene mg/m3 ND 0 10 ND 0. 10 ND 0. 10 <br />' Ethylbenzene mg/m3 ND 0 10 NO 0 10 ND 0 10 <br /> Xylenes mg/m3 ND 0 30 2.1 0 30 1 . 1 0 30 <br />' VW-4 VW-5 EFF <br /> Method and Concen- Reporting Concen- Reporting Concen- Reporting <br /> Constituent. Units tration Limit tration Limit tration Limit <br />' Modified DHS Method- <br /> Total Petroleum Hydro- <br /> carbons as Gasoline mg/m3 110 10 190 10 37 10 <br /> EPA Method 8020 for: <br />' Benzene mg/m3 0.51 0 10 NO 0.10 0. 10 0 10 <br /> Toluene mg/m3 1 .9 0 10 ND 0. 10 0.25 0.10 <br />' Ethylbenzene mg/m3 0.58 0 10 0.55 0 10 0 12 0. 10 <br /> Xylenes mg/m3 8.1 0.30 5.2 0 30 2.5 0 30 <br /> 6 Concentrations reported as NO were not detected at or above the reporting limit. <br /> 1 <br />' Founding Member of the Association of California Testing Laboratories <br />