2021-04-20_REVISION - M1983033 (20)

Home Browse Search

Walstrum Spur Amendment, Exhibit E— Reclamation Plan April 2021 The reclamation map shown in Exhibit F(F-1) depicts the reclamation type for each area. A summary of the planned post-mining land use acreage is presented in Table E-1 below. Table E-1 — Summary of Planned Post-Mining Land Use Wildlife Habitat (Undisturbed S 255 Area) Privately-Owned Natural I, J 255 Resource Area Industrial/Commercial/Public I, J, Y 200 Gathering Developed Water Resources I 39 Total 749 The Wildlife Habitat areas shown on Exhibit F(F-1) will be undisturbed and thus reclamation will be unnecessary. This land use was chosen to provide a buffer between the Affected Area and adjacent areas and to provide for wildlife habitat. Mining benches will be reclaimed as Privately-Owned Natural Resource Area as shown on Exhibit F(F-1). This land use was chosen because the benches are suitable for a natural resource area and unsuitable for Industrial/Commercial/Public Gathering. Reclamation activities will focus on establishing vegetation in disturbed areas where growth medium can be placed including benches and other graded areas. Steep highwall areas will be stabilized at the conclusion of mining. The methods described throughout this Exhibit were selected based on flexibility, science, engineering, experimentation, and 38 years of onsite experience at the Existing Quarry. The safety, protection, and preservation of wildlife will be taken into consideration throughout the life of the mine and post-mining. Three areas will be reclaimed as Industrial/Commercial/Public Gathering as shown on Exhibit F(F-1). The primary area will be the relatively flat quarry floor. Additional areas include the smaller Stage Y(Texaco Placer) and a small area in the northeast area of the Existing Quarry. These areas will be graded for future use and stabilized against erosion to maintain the surface and to promote positive drainage. Structures and other facilities to be retained will be left in place. Actual structures to be retained and removed will be determined at a future date. These areas will not be revegetated consistent with the existing approved Reclamation Plan. Lake Albert and Lake Frei are designated as Developed Water Resources as shown on Exhibit F(F-1). The volume, footprint, location, and configuration of the reservoirs will be determined during mining. The reservoirs will be reclaimed with slopes that are no steeper than 2H:1 V. 3.0 PROPOSED POST-MINING LAND USE 6.4.5(2)(b) A comparison of the proposed post-mining land use to other land uses in the vicinity and to adopted state and local land use plans and programs. In those instances where the post-mining land use is for industrial, residential, or commercial purposes and such use is not reasonably assured, a plan for revegetation shall be submitted. Appropriate evidence supporting such reasonable assurance shall be submitted; The post-mining use for disturbed lands will be divided between Privately-Owned Natural Resource Area, Industrial/Commercial/Public Gathering, and Developed Water Resources. According to the Clear Creek Master Plan, the predominant land uses in the vicinity are Industrial, Commercial, Interstate Highway Corridors, State Highway Corridors, and Open Space. There is a need for Industrial/Commercial and Developed Water Resources in the local area and the Existing Quarry is currently zoned for these uses. Refer to Clear Creek County Rezoning Case No. 265, Major Plan Amendment 01-PDA-2 that was previously approved. � TETRA TECH P a g e 2 I%