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Cropland, rangeland and wildlife habitat are currently approved post-mining land uses. <br /> These land uses meet the criteria of Rule 4.16.3. <br /> XIII. Protection of Fish, Wildlife and Related Environmental Values <br /> Section 4. 6 of Vol. IV of the permit application discusses the protection of fish, wildlife and <br /> related environmental values. <br /> Wildlife habitat is a planned post-mining land use. The applicant selected appropriate <br /> plant species and distributions to benefit fish and wildlife (4.18(4)(i)). <br /> XIV. Protection of Underground Mining <br /> This PR11 permitting action proposes further mining on the west portion of the site in the I and J <br /> Pits. The area had been fully reclaimed (4.19(1)), and 4.22.4(1))will be re-disturbed as per <br /> PRIG and PRI 1. <br /> XV. Subsidence Control <br /> No specific approvals are granted to the applicant under this section. <br /> W. Concurrent Surface and Underground Mining <br /> No specific approvals are granted to the applicant under this section. <br /> XVII. Auger Mining- Rule 4.23 <br /> Auger of highwall mining is planned in the C, I, J, L and N pits. Subsidence is not anticipated with <br /> any highwall mining activities at the site. Trapper is not currently aware of any abandoned or active <br /> underground mine workings in any of the pertinent coal seams in the proposed highwall mining <br /> areas. In the event abandoned or active underground mining operations are identified, no highwall <br /> mining will be conducted within 500 feet of previous workings in the applicable seams. Trapper is <br /> also not aware of any dwellings, buildings, tanks, impoundments or utilities overlying areas planned <br /> for highwall mining. Design criteria established by Agapito Associates Inc. will be utilized to ensure <br /> long-term stability of highwalls and mining areas based on seam and overburden thickness. Access <br /> to highwall miner entries will be blocked or buried within 30 days following coal extraction. <br /> XVIII. Operations on Alluvial Valley Floors <br /> Operations on alluvial valley floors (AVFs) are discussed in Section 4.8.4 of Vol. IV of the permit <br /> application. <br /> 1. Yampa River 2. Williams Fork River <br /> 3. No Name Gulch 4. Johnson Gulch <br /> 5. Pyeatt Gulch 6. Flume Gulch <br /> The above alluvial valleys would meet the regulatory definition of an alluvial valley floor (AVF) if <br /> the valleys had water availability sufficient for flood-irrigated agricultural activities [Section <br /> 1.04(10)], or availability of water sufficient for sub-irrigated agricultural activities [Section <br /> 1.04(10)]. Flood irrigation is practiced on the valley floors of the Yampa River in the Big Bottom <br /> area and the Williams Fork River near its confluence with the Yampa. Based on the presence of <br /> unconsolidated stream-laid holding streams with water availability sufficient for flood-irrigated <br /> agricultural activities, the following two alluvial valleys have been determined to be alluvial valley <br /> floors: <br /> 19 <br />