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Tom Horton <br /> Page ;2 <br /> 3 ,.,.,"a,:Theprocedure for the removal of solids, blockage, and erosion <br /> from the drainage collection system was not addressed - <br /> Section 17778. <br /> 7 . The run-off analysis for sheet and rill erosion was not <br /> proposed - Section 17779. <br /> 8. The details of the construction and operation of the leachate <br /> control system have not been proposed. An evaluation of this <br /> system cannot be made due to a lack of information - Section <br /> 17781. <br /> 9. A letter from a sewage treatment plant allowing disposal 'of <br /> leachate must be obtained - Section 17781. <br /> Postclosure Plan Elements <br /> 1. A statement is needed regarding the use, if any, forthe <br /> proposed "Open Area00 during the postclosure period - 'Section <br /> 18264. 3 (2) . <br /> Closure Cost Estimates <br /> 1. A proposal has been submitted for the use of a geosynthetic <br /> membrane. No cost estimate was included Section <br /> 18263 (b) (2) . <br /> 2 . No cost estimate for a gas control system was provided - <br /> Section 18263 (b) (6) <br /> 3 A calculation error was made on the drainage system` <br /> installation cost estimate; the total is incorrect (p. 27) . <br /> Postclosure Cost Estimates <br /> 1. In the preliminary plan the annual postclosure'maintenance <br /> cost estimate was not multiplied by fifteen years - Section <br /> 18266(a) (3) <br /> 2. The cost of acquiring materials for maintaining the final <br /> cover was not addressed - , Section 18266(b) (6) . <br /> 3 . An error was =made in calculating the cost estimate for vadose <br /> zone monitoring. The 11311 in the plans (p. 31) should be a <br /> e14 n <br /> 4 . An error was made in calculating the cost estimate for'ground <br /> water monitoring. The 01311 in the plans (p. 31) should be a <br /> ee 4 ee <br />