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Exhi6i! E -Reclamation Plan <br />Expansion Area South <br />Mining Area <br />Expansion Area South will be mined afrer the Expansion Area North is mined out, depending on <br />market conditions and the quality of the material (Exhibit F-1). The Expansion Area South will <br />be mined and reclaimed using the same methods described for Expansion Area North. Before any <br />disturbance occurs within the Expansion Area South, this permit will be modified by a Technical <br />Revision to include the information regarding the bonding for this area. <br />RECLAMATION PLAN B <br />This section will describe planned reclamation activities for Reclamation Plan B. Under this <br />plan, reclamation activities at the existing Worthing Pit and the Expansion Area North will be <br />concurrent and consistent with the development of a Water Storage Facility (WSF) and a post <br />mining land use of mixed residential and recreational. <br />Worthing Pit <br />Pit Lakes -Water Storage Facility <br />If the geologic and economic conditions are suitable, Pit Lakes 1 and 2 at the Worthing Pit will be <br />combined to create a WSF, enclosed by a liner, and deepened to increase capacity. This liner will <br />isolate the WSF from the surrownding groundwater. The construction of the WSF could produce <br />as much as 1.5 million yards of gravel, inert shale and clay. This material may be used as backfill <br />for the plant site, tailings area, and Expansion Area North to increase the ground elevation to that <br />of Brighton Road sloping gently east to west towards the South Platte River, as shown in Exhibit <br />F-2, Reclamation Plan B. The final maximum depth of the WSF is dependent on water <br />availability and ongoing negotiations; therefore, the exact amount of material to be generated is <br />unknown. <br />No final highwalls will remain, as the embankments of the WSF will be graded to blend with the <br />surrounding topography. All permanent WSF embankments will be graded to a maximum 3H:1 V <br />slope with a top elevation to blend with surrounding topography. Existing Pit Lake 3 at the <br />Worthing Pit has been reclaimed as a pond and is currently used for fishing. Pit Lake 3 wil] not be <br />disturbed under this plan. <br />The existing haul road along the west embankment of Pit Lake 1 will remain as an access road for <br />the water storage reservoir. Light-duty roads will be constructed around the perimeter of the WSF <br />for inspection and maintenance access. <br />Expansion Area North <br />Mining Area <br />The entire 2]-acre Expansion Area North will be re-mined, removing approximately 35,000 cubic <br />yards of overburden and 500,000 cubic yards of gravel, to a pit floor elevation of approximately <br />total mine depth 4,992-feet AMSL, the same operation as in Reclamation Plan A. Mining in <br />Expansion Area North will be completed within three years. <br />1898-Frei 112 Exhibits_(4.20.05).doc E-Q <br />