AG 1993 07 06 - Laserfiche WebLink

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CLOSURE PLAN AND IMPLEMENTATION ASSISTANCE FOR OLD FILL AREA Task 4 - Prepare Closure Plan for Old Fill Area The old fill area stopped receiving waste prior to October 9, 1991, therefore, it is assumed that it will fall under the Solid Waste Section's Category 1 closure requirements. It is assumed that the County will be able to avoid the 'additional permit requirements added to the conditions of the recently approval of the vertical expansion application. This amendment does not include any work associated with those additional permit requirements, ff additional work is required by the Solid Waste Section, it will have to be completed an as additional amendment. CDM will prepare a draft Closure Plan for the County's review and comment. The plan will include the following elements as required by the Solid Waste Section: Compliance with Section .0505 of the North Carolina Solid Waste Management Rules, including: Final comour and final cover requirements - CDM will develop a new grading plan for the old fall area. The cover requirements according to .0505(3)(c) is a two-foot layer of compacted earth. CDM will minimize the amount of fill material required if possible. Permanent erosion control and drainage control measures (Section .0505(4) and (5)). It is assumed sheet flow for stormwater will be allowed due to the existing gentle slopes. If drainage structures are required to route stormwater off the landfill area, CDM will design up to four downdrain pipe structures at no additional cost. CDM will assume that no design calculation verification of the adequacy of the large sedimentation basin into which the stormwater will drain will be necessary. * Vegetation requirements (Section .0505(6)). * Leachate control (Section .0505(7)(c). Compliance with post-closure conditions, including explosive gas requirements (.0503(2)(a)), surface water requirements (.0503(2)(c)), and groundwater requirements (.0503(2)(d)). CDM will develop three plans for continued monitoring of these specific areas during the post-closure period. CDM has not included the engineering of any systems or facilities to accomplish compliance with the issues identified in this paragraph. It is assumed that all necessary systems and facilities are already in place (i.e., no additional gas monitoring wells or ground water monitoring wells will be required by the Solid Waste Section). n.'XcabarrmMmend3- l.cab Page 3 of 7