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SGC stormwater permits will be governed by applicable regulations and not by this Consent <br /> Decree. <br /> V. SUMMARY OF WORK <br /> 9. SGC, in consideration of the mutual undertakings set forth in this Consent <br /> Decree, agrees to perform the following Work: <br /> a. American Tunnel/Terry Tunnel <br /> During 1996, SGC will complete the seals permitted in the MLR Permit, and <br /> will close the valves at the Terry Tunnel and at the property line in the American Tunnel. <br /> Once the valves are closed, it is predicted that the mine pool will start to build and will <br /> eventually reach physical equilibrium. SGC will monitor the mine pool height. The mine <br /> pool will be considered to be at physical equilibrium when the rate of rise of the mine pool has <br /> leveled off, as defined by mutual agreement between SGC and DMG pursuant to the MLR <br /> Permit. Notice that equilibrium has been reached, as determined under the MLR Permit, will <br /> be provided by SGC to the Division within thirty days of such determination. Once the pool is <br /> at equilibrium, and after the two-year observation period required by the MLR permit, SGC <br /> will grout the valves and pipes in the bulkhead seals in the American and Terry Tunnels and <br /> place additional hydraulic seals downstream of the property line seal to eliminate the American <br /> Tunnel portal discharge and to allow final reclamation of the surface facilities as required by <br /> SGC's MLR Permit. Additional DMG approvals will be necessary for such further seals. <br /> SGC may also place infiltration controls to preclude water from entering the American Tunnel. <br /> 38911-3,3,2/96 13 <br />