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. Horton <br />ge 2 <br />The drainage and erosion control systems should be designed <br />to control the 100 -year, 24-hour precipitation event. The <br />drainage system design is not included in the closure or <br />postclosure maintenance plans. <br />8. , The ground water flow direction in the perched aquifer can <br />not be determined from just the two shallow ground water <br />monitoring wells. <br />9. The closure and postclosure maintenance plans do not refer <br />.to mitigation of the site induced degraded ground water in <br />,both the perched and deep aquifers. <br />10. The postclosure maintenance plan did not include a protocol <br />for repairing the final cover. <br />11. Protection of the landfill gas monitoring wells should be <br />analogous to that required under the California Well <br />Standards for ground water monitoring wells. <br />12. The postclosure maintenance plan does not clearly break down <br />the costs of monitoring ground water or landfill gas. <br />13. The postclosure maintenance plan does not provide for <br />replacement costs of either ground water monitoring wells or <br />landfill gas monitoring wells. <br />14. Board staff recommend that the operator include in the <br />postclosure maintenance costs and text a provision for <br />inspecting the landfill immediately after a precipitation. <br />event that exceeds one inch in a twenty-four hour period. <br />15. The emergency response plan does indicate the persons of <br />positions to contact in case of an emergency. Please <br />include the name, phone number, address, and function of <br />each person that should be included in the emergency <br />response plan. <br />16. The costs of both the closure and postclosure maintenance <br />plans must be revised to include a twenty percent <br />contingency in the closure costs. <br />17. The postclosure maintenance fund is under -funded at this <br />time. The operator should place funds into the postclosure <br />maintenance funds sufficient to reflect closure in less than <br />two years from now. - <br />Please indicate within two weeks, in writing, when you plan to <br />re -submit the final closure and postclosure maintenance plans to <br />