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iii iiiiininiii iii 999 energy fuels mining company '~ one labor center • suite 2500 (303 623-83t 7 1200 seventeenth street • denver, Colorado 80202 Septembe[ 25, 1992 twx 910931-2561 Mr. Joseph Dudash . . Mined Land Reclamation Division ~~ ~~ ~ i 't 1313 Sherman St., Room 215 Denver, CO 80203 OCT 0 2199 RE: Abandoned Pre-I~w Mine PoAals Raton Creek Mines Your File No. C-82-055 plVlbl.~l~ , ,. MINERh~E ~ ''~ • %` This letter is written to provide information pertaining to abandoned mine portals existing in the vacinity of Energy Fuels Mining Company's (EFMC) Raton Creek Mine facility area per your verbal request dated September 18, 1992. Specifically, this letter provides documentation of any mining related use of the abandoned portals by EFMC or its predessor, Sundance Coal Company (SCC). Accompanying this letter is a site map (Figure I) of the Raton Creek Mine facility area revised to show approximate locations of all subject mine openings with reference numbers. Upon inspection of the mine facility area, a total of nine (9) abandoned portals were identified which might allow unauthorized entry and subsequent potential hazards to the public. These portal locations are numbered one through nice on attached Figure 1. During the period that EFMC conducted mining operations (1987-1990), none of the above referenced portals were utilized in connection with mining for such purposes as mine ventilation, water storage, etc. EFMC in fact erected temporary barriers across three of the portals due to the ease of unauthorized access from mine yard area. Discussions with persomel previously employed by SCC indicate that during the period 1982-1985, Sundance accessed a very limited portion of abandoned workings through poAal No. 2 (Figure 1) for the purpose of storing mining supplies and spare parts. Portal No. 2 was the only portal reportedly used by Sundance Coal Company. It should be noted thaz the nine referenced porals lie on at least two different horizons with respect to the existing facility area. As such, several of the portals may be covered by backfilling operations during EFMC's reclamation project subject to final permit review and approval by the Division. Following approval of EFMC's reclamation plans, EFMC welwmes the opportunity to coordinate the timing of its plans with those now being proposed by the Abondoned Mined lands concerning sealing of the subject portals. Please contact me az your convenience if you have any questions or require additional information on this matter. Sincerely, Allen S. Weaver Mine Engineer enc: ce: Randy Acre Joe DeAngelis (Raton Creek) Bob Kirkham (AML)