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4. The section discussing Leachate Control Measures has been <br />revised to include funds for any closure costs which may <br />occur. Part (6) -COST, under Leachate Control Measures, has <br />been revised to read: Although the leachate collection and <br />removal system willbeinstalled before closure, additional <br />work may be - required, such as installation of additional <br />collection sumps. A sum of $5000 was allocated to cover these <br />costs. <br />The CIWMB was concerned about the cost estimate for installing gas <br />wells at the site. The County hired EMCON Associates to install <br />a gas monitoring system at the Harney Lane Sanitary Landfill. <br />EMCON is charging $11,600 to install and twice monitor 12 gas <br />wells. This rate works out to approximately $1,000 per well as <br />reported in the Preliminary Closure Plan. EMCON I s proposal is <br />enclosed (Attachment 2). <br />The Estimated Closure Cost Summary on page 30 of the Closure Plan <br />has been revised to reflect all of the changes above. Please <br />replace the old pages 24-30 of the Preliminary Closure and <br />Postclosure Plan with the enclosed pages. If you have any <br />questions, please call Gabe Karam or Wes Johnson at (209) 468-3066. <br />Sincerely <br />TOM HORTON <br />Solid Waste Manager <br />enclosures <br />c: Ed Padilla, Environmental Health Division <br />Nate Gauff, CIWMB <br />TH: WJ: wj <br />R:\RUDY\EN\NC\EVANSLET <br />LA 63400 <br />