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s Table 2-2 Design Criteria Topic Design Criteria for the Proposed Action When no longer needed for its intended use each drilled hole or borehole, wells, or other exposed underground opening shall be capped, sealed, backfilled, or otherwise properly managed, as required by the Division and consistent with 30 CFR 75.1711. Permanent closure measures shall be designed to prevent access to the mine workings by people, livestock, fish and wildlife, machinery and to keep acid or other toxic drainage from entering ground or surface waters. Exploration holes, drill holes or boreholes, wells or other exposed underground openings not completed to aquifers shall be sealed by replacing cuttings or other suitable media in the hole and placing a suitable plug 10 feet below the ground surface to support a cement plug or other media to within 3 feet of the ground surface. The hole will be marked. A surface plug shall be placed in accordance with 4.07.3(1) and the hole shall be marked. *Federal Coal Lease Stipulation `Canada Lynx Conservation Assessment and Strategy Developments Associated with Project Proposal Constmcting an estimated 0.7 miles of road on private land and drilling and casing of up to 19 MDWs at up to 17 sites on private land. The effects of these activities are considered in the effects analyses in Chapter 3. Without the development on the FS, it is unlikely that these developments would occur. Other Permits/Plans Required or May Be Required NPDES Permit; • SPCC Permit; 404 Permit-Proposed crossing of jurisdictional drainages to follow the permit conditions identified by the Army Corps of Engineers in the 404 permit; • Special Use Authorization issued by the Forest Service (required); • Road Use Permit issued by the Forest Service (required). MCC has an existing road use permit, however additional mileage may need to be added and performance bond may need adjustment; Approved Pesticide Use and Weed Control Plan; and Alternatives Considered but Eliminated from Detailed Study Federal agencies are required by NEPA to rigorously explore and objectively evaluate all reasonable alternatives and to briefly discuss the reasons for eliminating any alternatives that were not developed in detail (40 CFR 1502.14). Public comments received in response to the Proposed Action provided suggestions for alternative methods for achieving the purpose and need. Some of these alternatives may have been outside the scope of compliance with Mine Safety and Health Administration requirements for methane gas management, duplicative of the alternatives considered in detail, or determined to be components that would cause unnecessary environmental harm. Therefore, a number of alternatives were considered, but dismissed from detailed consideration for reasons summarized below. Flaring of Methane Gas Flaring of methane gas may cause mine explosions due to fluctuations in the levels of methane. This is an undesired condition and is not approved by MSHA. • Mine permit revision through DRMS. 1 L 1 1 30 Deer Creek Ventilation Shaft and E Seam Methane Drainage Wells DEIS '