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IIaited States • ATDRAL RESODRCES 1.7 Pheasant Ridge nepartment of CONSERVATION Sterling, ColoXado 80751 Agriculture SERVICE phone --- (970) 522-7554 Recommendations for site reclamation March 29, 1999 Site Preparation: Reclamation to the pit should be made by smoothing all banks to no more than 2:1 slopes and should be flatter where feasible and practicable. The topography should be made smooth with no spoil piles or pits present. Tonsoilina: The current topsoil should be removed and reserved to be used for reclamation. Topsoil should be spread uniformly over the disturbed area to a packed depth of 6 inches. In the event that existing soils have insufficient depth, topsoil shall be brought in and spread over the deficient areas. Fertilizer and Mulch:_ Manure can be spread on the prepared surface at the rate of 20 tons per acre; or nitrogen (N) and phosphorus (P205) fertilizer can be applied and incorporated at a rate of 40 lbs per acre each. Time of application should be immediately prior to seeding. If manure is applied, the manure should be of a type that has 60~ or more, by weight, heavy chunks 5 inches or more in diameter. Granular or powdery manure should not be used. If nitrogen and phosphorus are applied, a native hay or straw mulch will have to be spread and crimped into the soil at a rate of 4000 lbs per acre after fertilizing. Mulch should be crimped into the soil in such a way that 6 inches of mulch protrudes from the soil surface. These measures will help control wind and water erosion until the grass becomes established. Grass Beedina: Total area to be seeded should include all disturbed areas. The seedbed should be well settled and firm, but not friable, for seed placement. Soils that have been compacted by equipment should be tilled to break up rooting restrictive layers, then harrowed, rolled or packed to prepare the required firm seedbed. Grass should be drilled using a grass drill from November 1st to April 30th, prior to a period of anticipated moisture and after all other treatment is completed. Recommended planting depth is 1/4 to 3/4 inches. See the attached CO-ECS-S 'Grass Seeding Planned' for recommended species to be planted on the site. Weed control: Weed control should be accomplished on the site during grass stand establishment. Weed control can be chemical (see chemical dealer for recommendation, application rates, and time of application) or mechanical. Mowing shows best results when completed between mid June and early July. No grazing should be allowed during the first two years of establishment. After this period, the success of the seeding should be evaluated. If a lush stand is present, grazing may begin. If it is determined that an insufficient stand of grass is present, the area should be seeded again. If you have any questions, please call or come by our office.