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Advanced GeoEnvironrnental, Inc. v�- <br /> of Northern Calif n-nia <br /> 14 October 1997 <br /> AGE-NNC Project No..95-0118: <br /> Mr. Steve Sasson <br /> San Joaquin County Public Health - Environmental Health Division <br /> 304 East Weber Avenue RFroFIVED <br /> Stockton, California 95202 OCT 14 1997 <br /> Subject: Remedial Action Nark Plan AddendumENVIRONMENTAL HEALTH <br /> PERMIT/ SERVICES <br /> ELKHOi,�1 COUNTRY CLUB <br /> 1.050 Elkhorn Drive, Stockton, California <br /> Dear Mr. Sasson: <br /> In accordance with your request, Aa%!anced GeoEnvironmental, Inc. (AGE) has prepared the <br /> enclosed Remedial action NN°ork Plan Addendum detailing the design of a remediation system <br /> network and well construction logs at 1050 Elkhorn Drive, Stockton, California. <br /> k. Soil Vapor Extraction(SVE) location and Network <br /> The location of rhe VES unit is proposed at the ti estern edge of the maintenance building at the site, <br /> under the mi nin�g. This location ,trill place the unit near the electrical outlets and close to the SVE <br /> Fr nctt -ork. The awning it-ill also protect the extraction unit from Breather. A gated enclosure will <br /> secure the I ES zrnit. Approximate system location and network is depicted in Figure 2. <br /> Two-inch clictzareter PGC piping will be installed under round from the proposed SPE well head <br /> locations to a i•upor cb opout drum. The PVC piping will carry hydrocarbon vapor from the SVE well <br /> heads to the 1,ES writ. A PVCflosv control k-al a will be installed it:each line so that rapors can be <br /> clra�rnz from each ,rc:ll independently. <br /> • In-situ Air-Sparging JAS) location and stet«=ork <br /> - IAS is proposed in conjunction with SVE concw-rently at the site. The proposed JAS systenz tit.ould <br /> also be located at the western edge of the maintenance building at the site, under the awning. The <br /> *-srem would consist of a compressar to inject air beneath the hater table using air sparging wells. <br /> .d one-inch diameter PVC piping netyrork ivill carry air fi-om the compressor to the sparging wells. <br /> The PITC piping is4ll be installed beneath the ground surface. A PVCflozv control valve will be <br /> installed at each sparging well to direct airflow. <br /> 1803 West March Lane,Suite A.Stockton.California 95207 <br /> Telephone(209)956-0264 FAX(209)955-0700 <br />