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a <br /> Chavers Mining Resource <br /> DRMS Permit No.M-2015-030 <br /> Amendment No.2(AM-02) <br /> November 2022 <br /> Page 12 <br /> Species Rate Native or Warm or Cool <br /> (Variety) (pls/acre) Introduced Season Grass <br /> Thickspike wheatgrass(Critana) 8.0 to 10.0 Native Cool <br /> Sideoats grama(Vaughn) 5.0 to 7.0 Native Warm <br /> Switchgrass(Nebraska-28) 4.0 to 6.0 Native Warm <br /> Alfalfa(Nomad) 3.0 to 5.0 Introduced N/A <br /> Total 20.0 to 28.0 Both Both <br /> Notes: <br /> pis=Pure Live Seed <br /> Based on this seed mixture, an application rate of approximately 20.0 to 28.0 pls/ac will be used. <br /> Due to the common use of these grass species in the area, the availability of viable seeds in <br /> sufficient quantities is not considered to be an issue. Soil will be disced prior to seeding. Fertilizer <br /> be utilized in conjunction with seeding.A standard application of fertilizer will be used and applied <br /> at an appropriate rate (e.g., 250 lbs./acre). The total area to be seeded and fertilized is <br /> approximately 75 acres. Seeding and fertilizing will be completed as soon as possible after the <br /> overburden soil is backfilled, smoothed to conform to the reclamation topography, and the final <br /> layer of topsoil is placed and disced. Optimal periods of seeding are in the fall, before the first <br /> freeze (before November 1st) or in the spring from late-March up to April 30th. A standard <br /> application of straw mulch will be used and applied at an appropriate rate(e.g., 2 tons/acre)to the <br /> approximately 75 acres. <br /> Following revegetation,weed management strategies will be implemented to facilitate and achieve <br /> native grassland. Quarterly inspections to monitor revegetation progress and identify weed <br /> infestations will be conducted until the reclamation bond is released. ASCI will implement <br /> cultural, mechanical, and biological control methods including an aggressive mowing program to <br /> prevent the growth and establishment of weeds as mandated by Colorado State Law(C.R.S. Title <br /> 35 Article 5.5 Colorado Noxious Weed Act). If needed, chemical/herbicide application will be <br /> applied to further control weed infestations. <br /> 6.4.5 (2)(e) Schedule for Implementation <br /> Reclamation will occur concurrently with mining wherever possible to backfill material into <br /> previously mined areas. However, temporary stockpiling may occur for short durations. The <br /> anticipated reclamation schedule is presented in the following table. <br />