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l/ Kemediation Work Plan: Mine Waste Dump <br />Remediating Party: Sunnyside Gold Corporation 1F j) MC, <br />1 C <br />P.O. Box 177 <br />Silverton, CO 81433 <br />contact William B. Goodhard <br />Resident Manager <br />Identification of Lands <br />Surface waste dump at the American Tunnel site of Sunnyside Gold Corporation (SGC). Lands <br />are included within Mined Land Reclamation Board Permit #M -77 -378 boundary. Lands are <br />included in SGC's Stormwater Permit #COR- 040052 identified as American Tunnel. Lands are <br />located at Gladstone, San Juan County, Colorado. See attached map and site map. <br />Latitude 37 degrees 53 minutes Longitude 107 degrees 39 minutes <br />Identification of the Waters of the United States Potentially Affected <br />South Fork of Cement Creek above the confluence with Cement Creek. Cement Creek flows into <br />the Animas River at Silverton Colorado. See attached map. <br />Physical Description of Conditions <br />The mine waste dump and underlying tailings, located on the north side of the South Fork of <br />Cement Creek, was estimated to total approximately 80,000 cubic yards prior to 1994 removal work. <br />The dump is comprised of waste generated during the mining at Sunnyside and underlying the waste <br />dump is an old historic tailings pond from another facility. Due to the proximity to the creek and <br />groundwater, SGC believes that the underlying tailings should be removed and the mine waste <br />material removed or protected from percolation of rain and snow waters. This project is an <br />unanticipated extension of the tailings removal action near the American Tunnel, first begun in 1991 <br />on the south side of the South Fork of Cement Creek. See attached pre project monitoring and site <br />characterization information. <br />