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'r' <br />M <br />Purchasing Director Carolyn Goodrich explained that <br />the reason for replacement was not that the tiles had been <br />dropped or broken. Because of the constant expansion and <br />contraction caused by the extreme heat, the tiles shrink, <br />resulting in leakage which in turn causes the Landfill to <br />fail the emissions test. <br />The Commissioners discussed the cost of replacing these <br />tiles so often, and wondered if.this operation was going to <br />be cost effective in the future. They asked if it was a <br />maintenance concern and Rex Hailey, Landfill_Manager, felt <br />that the tiles would not have to be replaced as often in <br />the future because the County would not be burning as <br />heavily as they have been, since land clearance has dropped <br />off to some extent. He noted that two years of rough <br />material had been stockpiled requiring the constant use of <br />the air curtain destructor. <br />Chairman Scurlock asked if there is some other <br />alternative to spending approximately $25,000 every two <br />years. <br />Administrator Wright advised that the tiles are almost <br />three years old putting the monthly cost at $750, which he <br />felt was not excessive when you-ponsider the extension of <br />the life of the landfill. <br />Utilities Director Terry Pinto explained the technical <br />aspects of the refractory tiles. He advised that the next <br />phase at the landfill is going to be lime and it would be <br />cost prohibitive to place heavy, rough material, such as old <br />tree trunks, into a lime landfill. <br />Chairman Scurlock felt it was a shame to put clean fill <br />into the landfill and that there should be some sort of <br />separation process somewhere along the line to extend the <br />life of the landfill. He realized it would be a problem but <br />felt that it could be done through an educational process. <br />14 <br />JAN 4 1984 8K tact 70 <br />J <br />