2009-08-21_REVISION - M1983176 (8)

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text are two attachments required by Adams County for what is called a "Certificate of Designation" (CD) for inert filling. These are being submitted with this amendment application to the DRMS to show the requirements from Adams County/CDHPE. The first is the Table of Contents for the CD application and shows all the required information for the CD. The second is an example "manifest" that is required with each load of fill destined for the Speer site. Other than clean fill dirt, inert materials (defined as "solid waste" by the state) cannot be placed below the alluvial water table at this site. The operations plan requires that solid waste be placed only 1 ft. above the average elevation of the water table (which is approximately 11 ft. below the original ground surface). This design is shown in graphic form as a typical cross-section through the fill located both on Exhibits C-2 and Exhibit F, the Reclamation Plan Map. This material will primarily come from ASCI construction operations, but can also come from other construction sites for which ASCI has a professional working relationship with the contractor. The Speer site will not be open to the general public. The filling will generally continue from the south and east towards the north and west, but since two types of materials are proposed for fill, the intent is to fill to the proper elevation (I ft. above the water table) with clean fill dirt and then top that fill off with the solid waste fill, as shown on Exhibit C-2, where appropriate. Finally, a "cap" of topsoil from the original mining operation or clean fill dirt will be placed on top of the solid waste to create a proper medium for plant revegetation and growth. In areas where only clean fill dirt is being proposed, there will be no need for topsoiling. Approximately 1,000,000 cubic yards of material will be required to achieve the described final grade, which will be approximately equal in elevation to the pre-existing topography of the site, prior to mining. Average daily volume can be up to 330 cubic yards which would necessitate up to 30 truck trips per day with a mix of tandem dump trucks and tractor- trailer trucks. Five to eight years may be required to entirely fill the Speer site back to grade. The desired compaction will be achieved on this site through the use of heavy equipment to move and fill the site. This activity will preclude the formation of voids or subsidence to the final landscape. The approximate final contours of the site are shown on Exhibit F, the Reclamation Plan Map. The applicant commits to covering the areas, shown on Exhibit C-2 as solid waste fill, with a minimum of 1.5 ft. of topsoil or clean fill dirt upon completion of inert filling activities. In the areas designated for clean fill dirt only, no topsoil for revegetation will be required. These activities will ensure rapid and successful revegetation of the area to preclude the possibility of severe erosion. All disturbed areas made up of clean fill dirt or "capped" by topsoil or clean fill dirt, will be ripped (where required) and disked prior to grass seeding. The grass seed mix proposed for revegetative cover is shown in the table at the end of this section. This reclamation plan commits to at least two growing seasons of monitoring and any necessary maintenance to the site to ensure the integrity and effectiveness of the final cover so that no disturbance to the fill will occur. Steps to ensure that the cover will remain effective include: Repairs to the cover to correct the effects of settlement, subsidence, erosion, or other events, and preventing run-on and run- off from eroding or otherwise damaging the final cover. The area of active fill (approximately 26 acres) will have been topsoiled (where needed) and seeded with the