2007-02-22_REVISION - M1996008 - Laserfiche WebLink

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trucks which will enter a ramp out of the pit and then travel over the bridge to Western's processing facilities. Topsoil and overburden will be stockpiled as shown on Map C-2. It is expected that the overburden thickness will average 6 feet thickness over the area to be mined. Overburden may also be sold as select fill. The deposit will be mined to its final slope of 2H:1 V leaving a 15' wide portion of 3H:1 V slope near the expected water level when the lake is created. The total pit excavafion azea is 24.6 acres. The total disturbed azea is 31.4 acres. It is anticipated that there will be two phases of the operation as follows: Phase 1 - 12.6 +f-ac. This was begun in 1996 and may last 5 to 7 years, depending on production. Reclamation of this Phase is to begin upon commencement of operations in Phase 2. The topsoil from Phase 2 will be placed in the Phase 1 area from 5 feet below waterline to the top of the excavation. Phase 2 -12.0 +/-ac. To be mined over a period estimated to be about 5 to 8 yeazs. Reclamation of Phase 1 will commence upon completion of operations In order to allow for the water discharge, an NPDES stormwater/process water dischazge permit has been applied for with the Colorado Department of Public Health and Environment. Also, a water decree has been issued to utilize irrigation water for the expected evaporation from the site. See Exhibit G -Water Information for details. An augmentation pond is necessary to avoid the purchase of water. This pond has approximately 1.0 acres of surface area and is located northeast of the mining area. This pond will remain after mining. It is fed from the imgation ditch which enters the azea from the south, as shown on Map C-2. At least two feet of gravel will be left to the contact with the shale bedrock. No blasting will be utilized at any time for the operation. It is anticipated that the site will be mined less than one hundred eighty (180) days per year. North R-34 Pit 1/07