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/L -7�3 <br /> AN RECEIVE® <br /> JUL 3 12001 <br /> corrEa <br /> Division of Minerals and Geology <br /> July 31,2001 <br /> Mr. Anthony J. Waldron <br /> State of Colorado <br /> Division of Minerals and Geology <br /> Department of Natural Resources <br /> 1313 Sherman Street, Room 215 <br /> Denver, CO 80203 <br /> Mr. Waldron; <br /> RE: West Dump—Permit M-1977-300 <br /> Attached is a plan map showing the proposed final configuration of the West Dump assuming that <br /> the technical revision concerning affected area will be approved. Modifications to the final footprint <br /> involve the east portion of the dump. The primary modification to the final footprint has been to <br /> extend the toe of the dump eastward. This modification blends the natural terrain and the dump into <br /> a more favorable sheet water flow configuration. <br /> Reclamation plans for the West Dump are presented in the last modification of the permit— 1983 <br /> version. The final configuration presented on the attached map has been designed in accordance <br /> with the criteria given in the permit. The design blends the slopes of the West Dump into the <br /> hillside. This is based upon the sheet flow as presented by McDermid Engineering Associates,Inc. <br /> in Appendix E-4 of the 1983 revision of the permit in section 7.2.1 "Design Discharge Estimates" <br /> page 51. It is stated that all flows onto the dumps will be sheet flow with the exception of the small <br /> gulch that flows onto the East Dump. All slopes are designed 2H to IV. Slope-breaks are made at <br /> intervals of 40 vertical feet for erosion control. Each slope break consists of a nearly flat, 15 foot <br /> wide bench. The waste material will be covered with six inches of soil and be seeded. The total <br /> volume contained in the final West Dump configuration is smaller than presented in Appendix E-4 <br /> Stage 5. <br /> Sincerely; <br /> Thomas F. Buchholz <br /> Mine Manager <br /> Cotter Corporation Telephone(303)642-3893 <br /> Schwartzwalder Mine,P.O. Box 1017,Golden,CO 80402-1017 USA Fax(303)642-7379 <br />