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7. A run-off analysis for sheet and rill erosion was not <br /> proposed - Section 17779. <br /> 8. The Bromus mollis grass species must meet the <br /> requirements of Section 17779. <br /> 9. The details of the construction and operation of the <br /> leachate control system have not been proposed yet. An <br /> evaluation of this system cannot be made due to a lack of <br /> information. - Section 17781 <br /> 10. A letter from a sewage treatment plant allowing disposal <br /> of leachate must be obtained - Section 17781. <br /> Postclosure Plan Elements <br /> 1. A statement is needed regarding the use, if any, for the <br /> proposed "Open Area" during the postclosure period - <br /> Section 18264 . 3 (2) . <br /> Closure Cost Estimates <br /> 1. The initial cost estimate for closure in the submitted <br /> financial statement is 53% above the closure cost <br /> estimate in the preliminary plans. <br /> 2 . The total closure/postclosure cost estimate in the <br /> submitted financial statement is $4, 149,242; whereas, in <br /> the preliminary plans it is $2,796,282. <br /> 3 . A proposal has been submitted for the use of a <br /> geosynthetic membrane. No cost estimate was included - <br /> Section 18263 (b) (2) . <br /> 4 . No cost estimate for a gas control system was provided - <br /> Section 18263 (b) (6) . <br /> 5. A calculation error was made on the drainage system <br /> installation cost estimate; the total is incorrect <br /> (p.27) . <br /> Postclosure Cost Estimates <br /> 1. The initial cost estimate for postclosure in the <br /> submitted financial statement is 37% below the <br /> postclosure cost estimate in the preliminary plan. <br /> 2 . In the preliminary plan the annual postclosure <br /> maintenance cost estimate was not multiplied by fifteen <br /> years - Section 18266 (a) (3) . <br /> 3 . The cost of acquiring materials for maintaining the final <br /> cover was not addressed - Section 18266 (b) (6) . <br />