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f <br /> P.O. Box 576981 <br /> M.J. Kloberdanz & Associates Modesto, California 95357-6981 <br /> .Environmental Assessment Phone: (209) 577-8186 <br /> Fax: (209) 577-8158 <br /> G <br /> February 10, 2003 <br /> Jeff Wong, REHS <br /> San Joaquin County <br /> Environmental Health Division <br /> P.O. Box 2009 <br /> Stockton, California 95201 <br /> RE: Well Destruction: MUSD Ag Shop, 2901 E. Louise Avenue, Manteca, California <br /> I �M Per your letter dated December 11,_2002 to Manteca Unified School District, M.J. <br /> �Kloberdanz & "Associates has been contracted -to 'destroy'`tlie"'three groundwater' <br /> monitoring wells at the above referenced facility. We will use the licensed drilling <br /> company(C57-720904) V&W Drilling, Inc. to pressure grout the wells: <br /> A pipe will be inserted in each of the 2-inch diameter by 30-foot deep wells in <br /> order to displace the water. <br /> The top of the well will be sealed to the pipe and neat cement with 5% bentonite <br /> will be pumped into the wells forcing the mixture into the sand-pack that <br /> surrounds the well casing perforations. Approximately 20 gallons of cement <br /> mixture, or 26 cubic feet, will be used for each monitoring well. <br /> The traffic boxes will be removed along with about one foot of well casing and <br /> the hole will be capped with concrete. <br /> M.J. Kloberdanz & Associates will supervise the work and provide a final report of the . <br /> activities. A well destruction permit application is attached. <br /> If you have any questions please do not hesitate to call. <br /> Sincerely, <br /> I <br /> Michael J. Kloberdanz, REA, REHS <br /> M.J. Kloberdanz & Associates <br /> cc: MUSD w/o permit application <br />