2025-10-31_PERMIT FILE - C1981019 (5)

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RULE 2 PERMITS Rule 2 Permits 2.05-27 Revision Date: 9/2/25 Revision No.: PR-05 Shrubs will also be replaced through seeding techniques to meet applicable regulatory requirements as described in Section 4.15.8. The post-mining land use is graphically shown on the Post-mining Topography Map (Map 19). To support the proposed post-mining land use, small water impoundments (stock ponds) will be constructed to encourage an even distribution of grazing animals over the reclaimed site and to enhance the areas for wildlife. These small structures will also replace the existing water rights associated with the stock ponds that existed pre-mining. If necessary, Colowyo will submit designs for these small impoundments to the Division prior to their construction. Also, to provide access in the area for ranching purposes, the access road from Highway 13 will be left in place after mining is complete, and a number of "ranch roads" will be provided on the reclaimed area to approximate the roads that were in the area before mining. The access road will be narrowed from 26 to 12 feet, the asphalt removed, sideslopes reduced to 4:1 and the sides revegetated. The consideration of rangeland as a post-mining land use is identical to the discussion in Section 2.04.3. The limitations on changing to an alternative land use are fully discussed in that Section. The Industrial area will not be reclaimed and will contain a long-term water treatment facility. Detailed information regarding the water treatment facility can be found in Section 2.05.4 – Ponds, Impoundments, Diversions, and Treatment Facilities. 2.05.6 Mitigation of Surface Mining Operation Impacts Air Pollution Control Plan Colowyo maintains fugitive dust control measures as an integral part of all mining and reclamation activities. Presently, Colowyo operates under numerous Emission Permits issued from the Colorado Department of Health, Air Pollution Control Division, as more particularly described in Section 2.03.10. Copies of all applicable emission permits issued by the Colorado Department of Health are available onsite and can be reviewed by request. Colowyo conducts air quality monitoring at the site in accordance with the requirements of the emission permits. The principal fugitive dust control practices employed by Colowyo are as follows: Roads Colowyo employs a dust suppression program for in pit roads and other unpaved roads which primarily involves periodic watering. Mine water trucks run periodically as needed over the roads wetting down any dusty conditions. During the dryer months of the year, the water trucks will wet down the roads which are being utilized a minimum of two or three times per shift. If determined to be necessary as an addition to periodic watering, a chemical dust suppression agent may be used during the dry months on the primary in pit roads. To this date, however, chemical stabilization of the unpaved in pit roads has not been successful for more than a short period of time due to