2005-04-22_REVISION - M1977526 - Laserfiche WebLink

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Exhibit E-Reclamation Plon Gravel Stockpile and Processing Facility The existing gravel stockpile and processing facilities make up approximately 21 acres of disturbance. At closure, the remaining gravel stockpiles will be sold or transported off site. The gravel processing facility consists of screens, crushers, conveyors, truck scale, and a scale house. These facilities will be dismantled and transported off-site to other operations owned by Albert Frei & Sons, Inc. or sold. The site will be backfilled and graded, sloping up from west to east at a starting elevation of 5,000-feet above mean sea level (AMSL) at the South Platte River to a maximum elevation of 5,016-feet AMSL on the east side equal to Brighton Road. The graded area will then be topsoiled, seeded and mulched consistent with the overall revegetation plan, as described later in this exhibit. Equipment Storage Yard The 1.8-acre equipment storage yard will be cleared of al] equipment and related debris. The area will be ripped, graded, topsoiled, seeded and mulched consistent with the overall revegetation plan, as described later in this exhibit. Expansion Area North Mining Area Expansion Area North was partially mined prior to the applicant acquiring the property. It appears to have been mined pre-1973 and was never permitted. No reclamation activities were conducted and much of the site remains disturbed. Vegetative cover is minimal and very little topsoil has been saved and stockpiled. Existing available topsoil for reclamation is minimal and unprotected slopes have minor erosion. The entire 21=acre Expansion Area North will be re-mined, removing approximately 35,000 cubic yards of overburden and 500,000 cubic yards of gravel, to a pit floor elevation of approximately total depth of mine 4,992-feet AMSL. Mining in Expansion Area North will be completed within three years. Backfilling and reclamation activities will require an additional three to five years afrer mining is completed. For Reclamation Plau A, Expansion Area North will be backfilled with a minimum of ]35,000 cubic yards of shale and overburden. This backfill material will be made up of 35,000 cubic yards from an existing on-site waste pile and 100,000 cubic yards from the deepening of the WSF. The mined out Expansion Area North will be filled to a minimum elevation of 4,996-feet AMSL, at least two feet above the average ground water elevation of 4,994-feet AMSL as shown on Exhibit F-1. All pit walls will be sloped to a maximum of 3H:1 V. Overall, the site will slope gently from east to west towards the South Platte River. Al] grading, topsoiling, seeding and mulching will be consisted with the overall revegetation plan, as described later in this exhibit. 1898-Frei 1 l2 Exhibits_(4.2Q05).doc E-3