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Chapter 2 <br />Table 2-1 <br />Design Criteria <br />Topic Design Criteria for the Proposed Action <br />Onsite Inspections 130. Prior to any construction, onsite inspections with appropriate 36 CFR 228 <br /> regulatory agencies will be held to discuss site-specific concerns. E <br />DRILLING & COMPLETION OF MDWS <br />Mud Pits 131. When the mud pits are sufficiently dry they will be filled with 36 CFR 228 <br /> stored sub-soil material and compacted to minimize any settling. E <br />Water use 132. Drilling water will be reused as available. MCC Project <br /> Plan <br />OPERATIONS & MAINTENANCE ACTIVITIES <br />Emergency Shaft 133. Hoist and generator will be tested weekly per MSHA requirements MSHA, <br /> to assure functionality. MCC Project <br /> Plan <br /> 134. A 1,000 gallon propane tank for generator will be buried in pad. MCC Project <br /> Plan <br /> 135. The generator for shaft will be muffled to reduce noise during the MCC Project <br /> testing periods. Plan, State <br />Site Security 136. A 6-foot high, locked, chain-link fence topped with barbed wire MCC Project <br /> will surround shaft escapeway to preclude wildlife and public. Plan <br /> 137. Underground mine workings will supply power to light the shaft MCC Project <br /> and emergency escapeway instead of solar power to avoid Plan <br /> installation of a powerline. Back-up power will be provided by a <br /> generator. <br />De-gas installation 138. Degassing trailer will be enclosed with a fence with a locking gate MCC Project <br /> to preclude public, livestock, and wildlife entry. Plan <br /> 139. Equipment will be inspected by MSHA prior to installation. <br />Monitoring of 140. Twice daily initial inspections of active de-gas installation then MCC Project <br />MDWS decreasing to weekly. Plan <br />RECLAMATION ACTIVITIES <br />Closure 141. Shaft and emergency escapeway would be capped with concrete 30 CFR <br /> and steel structure below ground surface and backfill material 75.1711 <br /> would be used to cover the caps. Caps would consist of 6 inch layer <br /> of concrete poured onto a steel screen supported by a steel beam <br /> frame installed 10 feet below the ground surface. Concrete collars <br /> would be removed and the area re-graded to approximate original <br /> contour and re-vegetated. <br />Revegetation 142. Subsurface ripping would be used to reduce compaction prior to BMP <br /> replacement of the topsoil and seeding. <br /> 143. Successful revegetation (measured by 75 percent cover of adjacent Forest Plan <br /> undisturbed ground after 2 growing seasons in upland areas and 80 <br /> percent ground cover in riparian areas) of disturbed ground with <br /> native vegetation. <br />• <br />• <br /> <br />40 Deer Creek Ventilation Shaft and E Seam Methane Drainage Wells FEIS <br />i <br />