AG 1993 07 06 - Laserfiche WebLink

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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 contour and final cover requirements - CDM assumes the existing final contours are adequate and does not propose to develop a new grading plan for the recently filled area. Because the vertical expansion area will fall under Category 2, a final cap system complying with subparagraph (c)(1) of Rule .1627 must be installed. The cap system must be designed to minimize infiltration and erosion, and be installed within six months of last receipt of waste. It is assumed that a design consisting of 18 inches of 10's cra/see earthen material and an erosion layer consisting of 6 inches of earthen material that is capable of sustaining native plant growth will be acceptable to the Solid Waste Section. CDM will prepare a plan identifying the area which is to receive the f'mal cover cap. Permanent erosion control and drainage control measures (Section .0505(4) and (5)). It is assumed the existing erosion control devices are adequate. CDM will assume that no'additional drainage structures or no design calculation verification of the adequacy of the sedimentation basins 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). Task 9 - Submittal to the Solid Waste Section Upon approval of the closure plan by Cabarrus County, CDM will submit the closure plan to the Solid Waste Section for approval. CDM will respond to comments that correspond to the work submitted. Because the Solid Waste rules and policies are changing constantly, it is recognized that additional work outside the scope of this amendment may be required' to address Section n:Xcabarm~Mmend3-l.cab Page 5 of 7