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/'! G/ II I I III II I II IIII III Doc Date:12/11/2001 4.21 COAL EXPLORATION r9~v e This section sets forth performance standards and design require- ments for coal exploration which substantially disturbs the natural land surface. 4.21.2 Colowyo will comply with the minimum environmental protection performance standards under this Section as discussed below and in Section 2.02. Colowyo plans to conduct coal exploration which may effect the natural land surface and during which less than 250 tons of coal will be removed. As stated in Section 2.02, Colowyo will not conduct coal exploration during which more than 250 tons of coal are removed. 4.21.3 Required Documents As stated in Section 2.02, Colowyo will not conduct coal exploration during which more than 250 tons of coal are removed. • 4.21.4 Performance Standards No habitats of unique value for fish, wildlife, and other related environmental values and areas were identified in Section 2.05.6(2)(b) which could be affected by coal exploration work. During any coal exploration, Colowyo will obtain any supportive information that might be necessary for proper mining, reclamation and environmental control. All vehicular traffic will be limited to established, graded roads at all times, except in cases where limited off road travel will be less damaging to vegetation and the ground surface than the construction of a new road. Travel will be confined to graded surface roads during periods when excessive damage to vegetation or rutting of the land surface could occur. Any new road to be built for the exploration project will be utilized for less than six months and thus will be constructed as a light use road according to the provisions of Section 4.03.3. Any existing roads in the area will be altered for exploration purposes only so far as they may be widened or smoothed to accommodate exploration equipment and in accordance with all applicable Federal, State and local requirements. Water bars and 4.21-1