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CIeologica!reclutics Inc. <br /> Valentine Property <br /> Project No.:723.2 <br /> Well Destruction Work Plan <br /> December 10,2012 <br /> • A neat cement grout (containing less than 4% bentonite) will be pumped under pressure <br /> through a tremie pipe to the bottom of the well. In this manner, the grout will displace <br /> the water in the well ensuring that it is completely filled with grout. <br /> • After the grout has been filled to the top of the well, a pressure cap will be fitted to the <br /> casing and the well pressurized to 25 psi. If the grout settles, additional grout will be <br /> pumped into the well casing..This will force the cement into the filter pack. <br /> • The amount of cement grout volume needed to fill the well and the horizontal piping has <br /> been calculated (attached tables) and the amount utilized will be tracked to judge the <br /> effectiveness of the process. <br /> • After the grout has been installed, the top of casing of the three monitoring wells will be <br /> drilled out to a depth of 5 ft below grade and the holes will be filled with clean dirt and <br /> capped with asphalt or concrete in the upper 8 inches below grade for wells in asphalted <br /> or concrete areas (respectively).The other 12 various wells will be drilled out. <br /> Remedial Equipment Removal <br /> Prior to well destruction, Geological Technics Inc. will remove of all remediation equipment <br /> and security fencing. <br /> Schedule &Reporting <br /> Our goal is to complete the well abandonment work by mid February 2013, contingent upon <br /> Work Plan approval. <br /> The information gathered during this phase of work will be presented in a report, which will <br /> include a discussion of well destruction efficiency (grout volume utilized versus calculated <br /> expectations). <br /> The project will be supervised by Dr. Ray Kablanow, the registered professional geologist <br /> responsible for the work. Copies of the reports will be forwarded to both the appropriate <br /> County and State regulatory agencies. <br /> If you should have any questions please do not hesitate to call. <br /> Respectfully Submitted, <br /> 5\pNAL �Folo <br /> G� RAYNOLD t. <br /> KABLANOW N—+ <br /> Raynold I. Kablanow II, Ph.D. No.5234 • <br /> California Professional Geologist#5234FO-61-T4 <br /> 1-; <br /> Certified Hydrogeologist#442 CAt <br /> cc: Harlin Knoll—SJC EHD <br /> Mike Smith - CRWQCBCVR <br />