2021-09-07_REVISION - M1973021 (4)

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Aggregate Industries, Morrison Quarry Amendment No.7 to Permit M-1973-021 FYZ Morrison,CO Exhibit E - Reclamation Plan Existing and planned reclamation is described below. See Exhibit F.1 through Exhibit F.5 for reclamation plan maps for Morrison Quarry. Existing Reclamation Reclamation is the process of initiating and accelerating the natural trend toward recovery of disturbed land areas. Current land use near Morrison Quarry consists primarily of open space, ranching, and wildlife use. The operator has substantially completed sustained reclamation of portions of the North and Central Quarry areas for wildlife habitat, which was the primary undisturbed land use prior to mining activities. This experience has helped to refine the site reclamation process and develop a landscape that is adaptable to natural land use and local climatological factors. Total reclamation within the Permit Boundary completed to date totals 54.4 acres. North Quarry Mining in the North Quarry was completed as of December 2007. The Town of Morrison and Aggregate Industries, Inc. are currently using the North Quarry as a raw water storage reservoir. Reclamation completed within the North Quarry consists of highwall staining, topsoil placement, and bench revegetation. The North Quarry reclamation totals 39.2 acres. Detailed plans providing construction and geotechnical information regarding the placement of fill and construction/extension of drainage conveyance and permanent Reservoir Site II can be found in AM04 and AM05 of the mine permit. The final design for the fill slope of the southwest corner of the North Quarry was conditionally approved March 3, 1999, under Technical Revision #2. Refer to Section II I of Technical Revision #2 for plans regarding earthwork construction. Appendix A of Technical Revision #2 provides a Slope Stability Analysis. Exhibit F.1 shows reclamation completed within the North Quarry. Central Quarry In 2016, partial reclamation was completed within the Central Quarry when the southwestern corner was backfilled to an elevation even with the surrounding unmined elevation (El. 6,500) to support stockpiling activities. Prior to this, mined benches above El. 6,675 on the western highwall of the Central Quarry were reclaimed by filling in the benches with overburden and topsoil material (8.5 acres). Central Quarry reclamation completed to date, not including the southwestern corner to El. 6,500, totals 10.3 acres. Exhibit F.2 shows reclamation within the Central Quarry. Aggregate Industries, Inc. stores material stripped from mining activities within the Central Quarry in stockpiles above El. 6,500. Aggregate Industries, Inc. plans to utilize this material in future reclamation slopes within the South Quarry. Stockpiled material will be seeded in early spring of each year unless currently in use. The stockpiles will be seeded with a mixture of smooth brome and perennial rye or an equivalent mix at a rate of 10 pounds (lbs)/acre by September 2021 1 24