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999 <br /> Remediation Plan: Longfellow Koehler Project <br /> Remediating Party: Sunnyside Gold Corporation <br /> P.O. Box 177 <br /> Silverton, CO 81433 <br /> contact William B. Goodhard <br /> Resident Manager <br /> Identification of Lands <br /> Mine portal, mine shaft and waste dumps located near top of Red Mountain Pass, on east side <br /> of Colorado Highway 550, San Juan County Colorado. See attached map. <br /> Identification of the Waters of the United States Potentially Affected <br /> Headwaters of North Mineral Creek. Mineral Creek flows into the Animas River below <br /> Silverton Colorado. See attached map. <br /> Physical Description of Conditions <br /> The area consists of, a shaft with a small access drift, a collapsed discharging portal, two mine <br /> waste dumps(estimated to contain 14,300 cubic yards) and a low pH natural pond. All water flow <br /> through or across disturbances is exposed to pyrite and other heavy metal-containing minerals as well <br /> as the acidic conditions of the pond. The project is located within a belt of chimney deposits along <br /> the Northwesterly rim of the Silverton Caldera. The area in general is highly mineralized. All <br /> background rocks are either volcanic or intrusive and are highly altered. The collapsed adit has a <br /> general Northeasterly bearing toward Carbon Lake. The headwaters of Mineral Creek are a <br /> substantial contributor of dissolved Fe, Al and Zn as defined by the 1991-1994 sampling results of <br /> Water Quality Control Division. <br /> Description of Project <br /> The waste dumps need to be moved and isolated from portal flows, intermittent flows and the <br /> pond. SGC proposes removal and consolidation with pH adjusted to near neutral by addition of lime <br /> or limestone. Preferably an isolation site can be found onsite or as an alternative the dumps will be <br /> moved to Tailings Pond #4. Once removal and consolidation is completed, the material will be <br /> capped and planted in order to prevent direct contact with water. <br /> .1. <br />