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iii iuiiiiiniiiiii <br />899 <br />`energy fuels mining company <br />one labor center • suite 2500 <br />1200 seventeenth street • denver. Colorado 80202 <br />August 31, 1995 <br />Ms. Janet H. Binns <br />Division of Minerals and Geology <br />1313 Sherman Street, Room 215 <br />Denver, Colorado 80203 <br />RE: Maintenance Plan for Refuse Ditch No. 1 <br />Raton Creek Mine, Permit No. C-82-055 <br />Dear Janet: <br />(303(623-8317 <br />iwx 910-931.2561 <br />:r ; <br />J.. <br />RECENE~ <br />SEP 0 5 1995 <br />Division of Minerals & Geology <br />During a routine company inspection of Raton Creek on August 24, 1995, Energy Fuels discovered <br />erosion damage in Refuse Ditch No. 1 between the former catchment basins and the sediment pond. <br />A recent significant storm event had caused downcutting and transport of some of the riprap into <br />the pond. We began drafting a plan and schedule to repair Refuse Ditch No. 1, along with other <br />maintenance concerns, while on site. <br />Energy Fuels discussed our intended phtns for ditch repair during your phone call to us the <br />afternoon of on August 30, 1995; following your partial inspection at Raton Creek. We discussed <br />our intentions to reconstruct the ditch exceeding the approved design, and a tentative schedule for <br />completing the work. <br />Energy Fuels proposes to reshape and armor Refuse Ditch No. 1 from the pond inlet for a distance <br />of approximately 450 feet. The ditch will be configured as a trapewidal ditch, with a 2 foot bottom <br />width and 2v:Ih sideslopes. The ditch will be lined with 9 inch thick Reno Mattresses containing 3- <br />6 inch diameter river rock. Where the ditch enters the pond, the last section of mattress will be <br />keyed or similarly anchored to the existing bedrock. <br />Based on the scope of work, availability of materials, and preliminary indications of contractor <br />availability, Energy Fuels estimates that the work will require 45 days to complete. Please contact <br />me if you have any questions or inquire additional information. <br />Sincerely, <br />Energy Fuels Mining Company <br />Allen S. Weaver <br />Mine Engineer <br />ce: Randy Acre (EFMC) <br />