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Ms. Lori Duncan, R.E.H.S. <br /> August 29, 2008 <br /> Page 2 of 2 <br /> The driller will destroy the wells by over-drilling the boreholes and casings with a truck- <br /> mounted drilling rig and 10-inch diameter hollow-stem augers. Once all of the well materials <br /> have been removed, the driller will seal the resulting boreholes by filling them with neat <br /> cement grout, placed to the bottom of the boreholes with a tremie pipe. The driller will cap <br /> the cement-filled boreholes with six-inch layers of concrete-or asphalt to match the <br /> surrounding pavements. <br /> The driller will contain the',waste well materials and soil in 55-gallon drums for temporary <br /> on-site storage pending waste characterization and proper disposition. To characterize the <br /> waste, Ramage Environmental will collect representative soil samples for laboratory analysis. <br />, -- -� The lab.-will analyze the..samples-for.petroleum hydrocarbons.and-total lead; so that the waste,. _ k <br /> can be profiled for disposal into a appropriate landfill. Based on the existing set of,soil <br /> sample analytical results, Ramage Environmental expects that the well destruction waste will <br /> be disposed of as non-hazardous-waste at a nearby facility. <br /> The results of the well destructions and waste disposal will be documented in a brief letter <br /> report, which will be submitted to EHD and the Central Valley Regional Water Quality <br /> Control Board (RWQCB).;Ramage Environmental will.also submit well completion reports <br /> documenting the well destructions to the California Department of Water Resources (DWR). <br /> Thank you for your review of this work plan and overall assistance on this project. If you <br /> have questions or need any additional information, please call me at(775) 851-7239 or send <br /> an e-mail to joeramage@sbeglobal.net. <br /> Sincerely, NA►„ G <br /> FO.. <br /> RAMAGE ENVIRONMENTAL, INC. pts <br /> JOSEPH <br /> d R. .{ <br /> RAMAGE � r <br /> 1 %P Np.S856 �Q <br /> z ,_Joseph Ramage, P.G. <br /> Project Manager I; - 0�[ALF ' <br /> Expires April 30,20 0 4 <br /> • h <br /> Attachments: Site Plan <br /> Monitoring Well Logs(MW-1, MW-2 and MW-3) <br /> CC: Ms. Kerry Wasson- San Joaquin County Facilities Management <br /> Mr. James Barton-Central Valley Regional Water Quality Control Board <br /> I <br />