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FROM :AGO NAT. RES. SECTION 303 832 810G 199 3-07 08: 14 #57S P.OS/18 <br /> from property not owned or controlled by SGC, and through which SGC has had an <br /> access easement. SGC continues to be bound by the terms and conditions of its present <br /> discharge permits and continues to treat Mine water flows. Treatment includes creation <br /> of treatment sludges which must be periodically dredged and disposed of at SGC's <br /> existing tailings pond. <br /> j. SGC also has an existing Mined Land Reclamation Permit#M77-378 <br /> ("the MLR Permit")pursuant to the Colorado Mined Land Reclamation Act, <br /> C.R.S. § 34-32-1011i=. ("the MLRA"). <br /> k. Pursuant to the MLRA and the MLR Permit, SGC has been in the process <br /> of final reclamation of the Mine,the Mayflower Mill,and the tailings impoundments at <br /> the Mill for several years. The final reclamation plan("the "Reclamation Plan") approved <br /> by the Colorado Mined Land Reclamation Board includes a requirement that SGC install <br /> a bulkhead at SGC's underground properly line within the American Tunnel to prevent <br /> mine water from flowing out of the Mine through the American Tunnel portal to Cement <br /> Creek and a requirement that SGC install a bulkhead at the Terry Tunnel portal. <br /> 1. The Division of Minerals and Geology ("DMG")recommended and the <br /> Mined Land Reclamation Board approved a technical revision SGC's Reclamation Plan <br /> on November 18, 1993, specifying the details and conditions for the installation of the <br /> underground bulkheads. <br /> M. The rationale for the Mined Land Reclamation Board's approval of the <br /> technical revision to SGC's Reclamation Plan was that indefinite or perpetual mine <br /> drainage treatment was not desirable for final reclamation. In addition,the Mined Land <br /> Reclamation Board felt that hydraulic seals offer the best alternative for final mine site <br /> reclamation. <br /> n. After the American Tunnel was extended to the Sunnyside Mine workings <br /> in the 1950s,and today,water in and around the mine area in part has flowed out of the <br /> ground through naturally occurring seeps and springs and, in part,has flowed through the <br /> Mine workings and American Tunnel to Cement Creek,with treatment at the American <br /> Tunnel portal. <br /> o. SGC's installation of bulkheads at SGC's property line within the <br /> American Tunnel and at the Terry Tunnel portal will impound water behind the <br /> bulkheads,eventually flooding the Mine and approximating the natural pre-mining <br /> hydraulic groundwater conditions in the area of the Mine. <br /> :as63-1.&"S 3 <br />