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t <br /> ,t R%Sn,1 fum,an, Environmental Solutions <br /> Through Applied Science, <br /> Engineering&Constructinn <br /> i l f�i C:nlrl C',r nlr Driw,Suiu•?rJ(J <br /> I arrr her C orrlov.i,C,1 9a,70 <br /> i'hone(9 10)di57-6690 <br /> FAX(9161 8514)61 8 <br /> r� <br /> September 12, 1991 <br /> Mr. Chuck Carmel <br /> r-E ARCO Products Company <br /> P.O. Box 5811 <br /> San Mateo, California 94402 <br /> Subject: Vapor-Extraction Test Results, ARCO Station No. 2075, 800 East Kettlernan <br /> r 3 <br /> Lane, Lodi, California. <br /> Mr. Carmel: <br /> .',t the request of ARCO Products Company (ARCO), Applied GeoSystems, Inc./RESNA <br /> Industries(RESNA)has prepared this letter report summarizing the results and conclusions <br /> of a vapor-extraction test (VET) performed at the subject site. This VET was performed <br /> in conjunction with an ongoing environmental investigation at the subject site. The site <br /> location is shown on the Site Vicinity Map. Plate L <br /> 4' WORK DESCRIPTION <br /> The VET performed by RESNA on July 30, 1991, had two objectives: (1) to collect site <br /> specific data and evaluate the feasibility of vapor extraction as a soil remediation alternative <br /> and (2) to evaluate the off-gas treatment alternatives, if applicable. <br /> The equipment utilized for the VET consisted of: (1)an internal combustion (I.C.) engine, <br /> (2)instrumentation for measuring air flow,air velocity,air pressure and air temperature,(3) <br /> polyvinyl chloride piping,fittings,and wellhead connections and(4)a portable organic vapor <br /> analyzer(OVA)and air sampling apparatus. RESNA operated the vapor-extraction testing <br /> equipment for ap .roximately 5 hours. Three vapor-extraction wells (VW-1 through VW-3) <br /> previously installed by RESNA were used during the VET. The location of these wells, as <br /> well as other pertinent site features, are shown on the Generalized Site Plan, Plate 2. <br /> 0912CCAR <br /> 30003-4 <br />