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San Joaquin County <br /> Environmental Health Department DIRECTOR <br /> Donna Heran, REHS <br /> r.t y 600 East Main Street <br /> a' �I'�R I� ;X PROGRAM COORDINATORS <br /> Stockton, California 95202-3029 Robert McCiellon,REHS <br /> Jeff Carruesco,REHS,RDI <br /> Kasey Foley,REHS <br /> q<<j=0.10 Website: www.SJgov.orglehd Linda Turkatte,REHS <br /> Phone: (209) 468-3420 <br /> Fax: (209)464.0138 <br /> Walter Shockey <br /> CIO Lee Shockey <br /> 117 Goodale Court <br /> Manteca, CA 95337 <br /> RE: Former Shockey Trucking (`� Site Code: 2581 <br /> 850 Milgeo Avenue <br /> Ripon, CA 95366 <br /> WORK PLAN: SVE Feasibility Testing <br /> DATED: July 12, 2010 <br /> PREPARED BY: Advanced GeoEnvironmental <br /> APPROVED: [X) <br /> ADEQUATE AND NECESSARY ELEMENTS OF THE WORK PLAN [H&S 25296.10 (c)(3)1: <br /> 1. To complete a 5-day soil vapor extraction (SVE) test utilizing existing MW-4. The pilot <br /> test data will be used to evaluate performance and feasibility of SVE for mass removal <br /> of diesel contaminants in the source area on-site. <br /> 2. Vapor screening on-site and vapor sampling for chemical analysis will be conducted <br /> during the 5-day period to quantify contaminant mass removed and to calculate the <br /> contaminant removal rate. <br /> 3. Selected MWs will be monitored for vacuum response during the test to determine the <br /> radius of influence from MW-4 from which the vacuum will be induced. <br /> 4. The vapor removed will be captured and treated on-site with activated carbon prior to <br /> discharge. <br /> COMMENTS AND CONDITIONS: <br /> 1. Because of seasonal ground water table fluctuation at the site, the work should be <br /> performed when the maximum vadose zone is exposed. The work must be completed <br /> before the rainy season begins. The SVE testing must be complete by November 15, <br /> 2010. <br /> 2. A SVE evaluation report must be prepared and submitted to the EHD and the <br /> CVRWQCB within 60 day of the completion of the test. The report must also be <br /> uploaded to GeoTracker the SWRCB data base. <br /> DATED 9/30/2010 BY <br /> Harlin Knoll, Senior REHS (209) 468-3442 <br /> Cc: Brian Millman, AGE, 837 Shaw Road, Stockton, Ca 95215 <br />