2021-09-16_REVISION - M1983033 - Laserfiche WebLink

Home Browse Search

Walstrum Spur Amendment, Exhibit E—Reclamation Plan revised September 2021 Table E-1 —Summa of Planned Post-Mining Land Use Description Stage Total Acres Wildlife Habitat (Undisturbed Area) S 255 Privately-Owned Natural Resource Area I, J 255 Industrial/Commercial/Public Gathering I, J, Y 200 Developed Water Resources 1 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. The vegetation consists of various native grasses,forbs and woody plants such as mountain mahogany. Steep highwall areas will be stabilized at the conclusion of mining. Partially exposed benches will be left to provide for escape terrain for bighorn sheep and other species.The combination of vegetation and steep slopes will make the Privately-Owned Natural Resource Area optimum habitat for the bighorn sheep as demonstrated by the reclaimed upper benches of the Existing Quarry. 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 3H:1 V from 5 feet above to 10 feet below the expected water line. 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. Ownership of parcels within the mine permit boundary is expected to remain with the current landowners. Generally, the flat areas of the mine excavation are expected to be future Industrial/Commercial/Public Gathering and oTETRA TECH P a g e 2 17