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Trace Analysis Laboratory, Inc. Telephone (510) 783-6960 <br /> 3423 Investment Boulevard, #8 • Hayward, California 94545 Facsimile (510) 783-1512 <br /> LOG NUMBER 5530 <br /> DATE SAMPLED 05/22/95 <br /> DATE RECEIVED. 05/23/95 <br /> DATE ANALYZED- 05/23/95 <br /> DATE REPORTED 06/01/95 <br /> CUSTOMER. Conoco, Inc <br /> REQUESTER: John Bower of SECOR <br /> PROJECT: No. N0700-008-01, Conoco, 4325 East Washington Street, Stockton, CA <br /> Sample Type. Vapor <br /> EFF INF <br /> Method and Concern- Reporting Concen- Reporting <br /> Constituent. Units tration Limit tration Limit <br /> Modified DHS Method: <br /> Total Petroleum Hydro- <br /> carbons as Gasoline mg/m3 ND 30 870 120 <br />. Modified EPA Method 8020 for <br /> Benzene mg/m3 0. 10 0 10 4 5 2.0 <br /> Toluene mg/m3 0. 10 0. 10 21. 2.0 <br /> Ethylbenzene mg/m3 ND 0.10 16 2 0 <br /> Xylenes mg/m3 0. 54 0.30 130 6.0 <br /> Concentrations reported as ND were not detected at or above the reporting limit. <br /> Founding Member of the Association of Cafrfornra Testing Laboratories <br />