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iii iiiiiiiiiiiii iii <br />999 <br />STATE OF COLORADO <br />Roy Romer, Governor <br />DEPARTMENT OFNATURAL RESOURCES <br />MINED LAND RECLAMATION DIVISION <br />DAVID C. SHELTON, Dlreetor <br />February 25, 1987 <br />Mr. David Stout <br />Environmental Coordinator <br />Wyoming Fuel Company <br />12055 W. Second Place <br />P.O. Box 15596 <br />Lakewood, Colorado 80215 <br />Re: New Elk Mine (File N0. C-81-012), Technical Revision TR-O6, Update ana <br />Modification of Drainage Plan <br />Dear Mr. Stout: <br />The Division has completed recalculations of certain of the peak flows from <br />drainage areas within the Mew Elk permit area as weir as of the corresponding <br />drainage ditch capacities. Based on this work, summarized in Randall Price's <br />enclosed memo, it appears that the capacities of certain ditches within the <br />present sediment and surface water control plan for the mine are not capable <br />of handling the anticipated 10 year - 24 hour flows from equivalent drainage <br />areas. <br />Since WFC is in the process of revising its sediment and surface water system <br />for the New Elk Mine, the Division hopes that the methodology employed in and <br />the results of Mr. Price's calculations can be put to appropriate use in the <br />design of the new plan. The Division would like to have the factors used as <br />well as the results of these recalculations incorporated in a revised Table 20 <br />of the New Elk permit application together with any other recalculations made <br />by WFC for the new plan. Furthermore, in consideration of the prolonged <br />period of time that this drainage plan/revision has been an issue between WFC <br />and the Division, the Division feels it necessary to impose a deadline of <br />March 20, 1987, for receipt of a new sediment and surface water control plan <br />for the Mew Elk Mine acceptable to the Division. Such a plan will include all <br />related and revised tables, figures, maps, and text suitable for inclusion in <br />the permit application together with an acceptable date of implementation for <br />the plan. Should the plan and related materials not be available by <br />htarch 20, 1987, a denial of the technical revision, TR-06, will be made. An <br />acceptable plan, etc., will still be required, but the technical revision will <br />have to be resubmitted. <br />If there are any questions in regard to the above, please call. <br />Sincerely, <br />James C. Stevens <br />Reclamation Specialist <br />J~F~,,,C,,,rrrS~~~/b d o ~ r C 1 <br />~,Sl ~~{~rerkN21 Building, 1313 Sherman Street Denver, Colorado 80203-2273 Tel. t303) 866-3567 <br />Q <br />