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WESTERN ~~ ASSOCIATION ING 7be Naliona[ Fue(Supp(y Gaperalire December 17, 1997 Mr. Dan Mathews Division of Minerals & Geology 2148 Broadway, #C5 Grand Junction, CO 81503 RE: T.R. 45 -REDUCTION IN REFUSE AREA COVER THICKNESS DESERADO MINE C-81-018 Dear Mr. Mathews: III IIIIIIIIIIIII III I am responding to your October 31, 1997 letter commenting on the reference application. Based upon our recent conversations and reviews, BME responds as follows: • Your letter proposes a refuse area cover thickness reduction to 3 feet instead of 2 feet requested by BME. We propose that a thickness of 2.5 feet with a minimum topsoil thickness of 12 inches be accepted. This thickness should be more than adequate as concluded in the Refuse Area Revegetation Study. • We request that no change be made in the seedmix for future refuse areas. We had contemplated changing the seed mix to correspond with the recently approved seed mix for RP-1. We have not seen and evaluated the success gained with the RP-1 seed mix. It may be as much as five years before we conclusively determine the revegetation success in RP-i with the new seed mix. We propose that the seed mix for other refuse areas be changed in the Tuture to conform with the RP-1 seed mix if the desired success is achieved in the RP-1. • We are satisfied that DMG agrees to reduce the woody plant density to 500 stems per acre from the current standard of 3200 stems per acre. I have revised page IV-23 of the permit to show a cover thickness of 2.5 feet. Please discard Table V-i5A (pages V-49B and V-49C) submitted with application since this table will remain unchanged in the permit to show seed mix for RP-1 only. Page V-58 submitted with the application remains unchanged. PO Box 33424 Denver, CO 80233 3424 Telephone 303/450-9976 Fax 303/450-1042 E-mail w(alakewoodBpcisys.net