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Table E-4 Reclamation Timetable <br /> Description Time Required <br /> Mining and Reclamation of Phase 1 20 years <br /> Mining and Reclamation of Phase 2 3 years <br /> Mining and Reclamation of Phase 3 20 years <br /> Mining of Phase 4 3 years <br /> Reclamation of Phase 4 3 months <br /> Monitoring Reclamation Success 2 years <br /> Total 48.25 years <br /> 4. Revegetation Plans (From NRCS) <br /> During ground disturbance: <br /> The expected 6-8" of topsoil will be stripped and stockpiled, only as required, and used as soon <br /> as possible in the reclamation process. The stockpile will be broadcast seeded within 180 days <br /> of establishment—seasonally dependent—with 16 lbs/acre of dryland alfalfa and 20 lbs/acre of <br /> intermediate wheatgrass. The stockpile will be kept free of noxious weeds by using herbicides <br /> until the pile is used for reclamation purposes. In the process of treating noxious weeds some of <br /> the alfalfa may be killed as well, which is acceptable. <br /> After earth disturbance operations the following steps are needed: <br /> 1. Side slopes will be equal to or flatter than 3.0H:1.0V. <br /> 2. Excess water from adjacent areas will not be allowed to flow onto the reclamation area <br /> unless erosion control practices are implemented. <br /> 3. The length of slope will be properly controlled to prevent erosion. <br /> 4. Topsoil will be applied after shaping and tilled to a depth of 6" or more binding topsoil to <br /> existing soil. <br /> Seedbed Preparation: <br /> All rocks, trash and other debris that will interfere with seeding will be removed and the ground <br /> surface will be disked to a depth of 4-6". If the seedbed is prepared immediately following <br /> construction, this operation can usually be omitted, except on fresh cut areas that have not <br /> otherwise been disturbed. Fertilizer and mulch will be applied only as needed. <br /> Fertilization: <br /> Prior to planting, a soil analysis will be completed to determine if fertilizers are required. If <br /> needed, fertilizer of not less than 40 lbs nitrogen and 40 lbs phosphorous will be applied prior to <br /> seeding. <br /> Yampa Valley Gravel Pit <br /> August 2025 E-2 Lewicki& Associates <br />