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<br />Paye 2 <br />RECLAMATION PLAN: <br />1) Slopes: During mining operations, cut or fill slopes should not <br />exceed 3:1 slopes (3 horizontal to 1 vertical). Cut slopes should be <br />scarified a minimum of three inches deep prior to placement of any tap <br />soil material. <br />2> Top Soil: During mining operations, topsoil should be stockpiled <br />to be used in reclamation of the area. Stockpiled topsoil should be <br />protected from wind erosion. After mining operations are completed, <br />the area should be shaped and graded with no slopes exceeding 3:1 <br />above water level and for at least ten feet below water level. Below <br />ten feet, slopes could be 2:1. After scarifying, topsoil should be . <br />spread six inches to one foot thick over any disturbed area above <br />water level, except where buildings may be built. A seedbed should be <br />prepared before the soil is seeded to adapted vegetation. For more <br />information on seedbed preparation contact this office. <br />3) Cover Crop: After topsoil has been spread over disturbed areas <br />and a seedbed has been prepared, the reclaimed area should be seeded <br />to a cover crop. Hybrid forage sorghum is a recommended cover crop. <br />Seeding should be done in May or June at the rate of 10 pounds per <br />acre of Pure Live Seed (PLS) in 7" to 12" row spacings. Grass <br />can be seeded directly into the forage sorghum, see item 6 below. <br />See item 4 below as mulching can be used instead of seeding a cover <br />crop. <br />4) Mulching: After seeding is completed, approximately 4000 pounds <br />per acre of straw or hay mulch should be applied. This mulch should <br />be anchored. One method is to use a straw crimper and "crimp" the <br />mulch into the soil. This should help to control erosion until the <br />grass becomes established. See attached SCS Standards and Specifi- <br />cations for Mulching. <br />5) Fertilizer: A soil test should be taken to determine fertilizer <br />recommendations before seeding grass. In the absence of a fertilizer <br />test, then forty pounds of nitrogen and forty pounds of phosphorous <br />per acre should be applied just prior to or during seeding of the <br />area. The fertilizer should be mixed into the soil. <br />6) Grass Seeding: Grass seeding should be done between November 1 <br />and May 1. Fall seeding is preferable. Seeding should not be done on <br />frozen soil. The seedbed should be firm and weed free. Seeding <br />should be made into a cover crop as discussed in item 3 above. When a <br />cover crop is not used, after the land is seeded to grass, it should <br />be covered with a mulch, see item 4 above. The following seeding <br />recommendation can be changed in consultation with SCS and the <br />Colorado Mined Land Reclamation, phone 866-3567. <br />The following is a seeding recommendation. <br />Grasses %_of_Mix Seeding_Rate± <br />Salado Alkali sacaton 20 0.3 <br />Covington Bluegrama 10 0.3 <br />Vaughn Sideoats grams 30 2.7 <br />Arriba Western wheatgrass 40 6.4 <br />~ = Pound per acre of pure live seed <br />