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• <br />r1 <br />L_J <br />TABLE 22-10 <br />ESTIMATED ACREAGES - POSTMINING VEGETATION TYPES <br /> <br />Postmining Vegetation Type Life-of- <br />Mine <br />(acres) <br />Shrub Grassland -Mine Area (Seed Mix lA) 838.4 810 <br />Shrub Grassland -Haul Road Corridor/Mine Area (Seed Mix 1B) 80.7 7.8 <br />Mesic Drainage (Seed Mix 2) 6.2 0.6 <br />Upland Shrub Sites (Planting List 1) ~ 17.4 17 <br />Mesic Draitage Tree and Shrub Sites (Planting List 3) 1 0.5 0.1 <br />Aspen Establishment Sites 8.5 0.8 <br />Mature Shrub Transplant Sites ~ 15.0 1.4 <br />Alkali Lowlands Grassland -Haul Road Corridor (Seed Mix 3) 44.3 4.3 <br />Undisturbed (Roads) 23.8 23 <br />TOTAL 1034.6 100.0 <br />Note: t Established as concentrated tree and shrub planting sites and shrub clump transplant aeeas. <br />Regra in~orStabilizingRills and Gullys <br />Seeded areas will be monitored following spring snowmelt and heavy rains. If monitoring indicates <br />the presence of excessive rills and gullies, closer observation will be used to deteunine the cause of the <br />gullying. These areas will be identified on a map. <br />Natural geomorphic processes in the reclaimed azea will be emphasized, taking into account the slope, <br />aspect, and soil conditions of the site. Further consideration will be given to the normal climatic <br />patterns, plant successional processes, and rate of vegetation establishment and development in the <br />subject area. Evaluation will include whether the rills and gullies will prohibit successful xevegetation <br />or will disrupt the achievement of the postmining ]and use. <br />Based on this evaluation, several options will be available to correct the situation. These options will <br />be a direct result of studying the situation and selecting the option that will best rectify the erosional <br />• problem. One or more of the following options and corrective methods will be employed. <br />PR-02 27 Revised 01/O6 <br />