1997-12-01_REVISION - M1977378 - Laserfiche WebLink

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P P Page 5 Bond and Acreage Reduction Submittal was entered into to expedite final reclamation by providing a way, other than through legal proceedings, to address WQCD's objections to the reclamation plan which uses bulkheads to block drainage pathways from the Sunnyside Mine, allowing an end to water treatment and reclamation of the facilities required for water treatment (AM - 002 and TR- 014). Reclamation: Surface facilities have been reduced and all ore stockpiles removed. The mine waste dump has been removed as well as the historic tailings that were under the waste dump and the area contoured and planted. The historic tailings pond within the permit area was removed and the area revegetated. The Cement Creek bank slope through the upper portion of the permit area has been stabilized by resloping and placement of rip-rap material. The American Tunnel bulkhead was constructed in 1995 and its valve was closed in 1996 to eliminate drainage through the American Tunnel from the area of the Sunnyside Mine workings (TR- 014). MAYFLOWER MILL AND TAILINGS AREA Proposed acreage changes: (see attached land map for details) Existing Permit Acreage 208.80 Permit Area Reduction Requested 60.82 Proposed Permit Area 142.98 Activity: The Mayflower Mill is a historic mill built in 1928 and operated by Sunnyside Gold Corporation from 1986 through 1991. The active tailings facility during this period of operations was Tailings Pond No. 4. Water treatment sludge generated from operation of the Terry Tunnel and American Tunnel water treatment plants were placed in Tailings Pond No. 3 until 1992 when the deposition site was changed to Tailings Pond No.4 JR- 012). In 1994, an interpretive sign area was constructed for public education on mine reclamation. It was located on an overlook area in the vicinity of Boulder Creek and Tailings Pond No. 2 (TR- 017). In 1995, the historic Mayflower Mill and old Powerhouse areas were deeded to the San Juan County Historical Society for preservation and conversion of the mill to a museum and public tour facility (AM - 004).