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Ur+°'detu" Fan+s Paonia Ran er 0lserict P. 0. Bax 1030 ~~ or s.mu 9 Paanla, Colorado 81428 (3031 521-4171 o... December 21, 1984 r Office of Surface Mining ATTN: Richard Holbrook Brooks Taxer 1020 15th Street Denver, CO 80202 Re: Application to Revlse..the Mining and Reclamation Plan for the Mt. Gunnison No. 1 Underground Mine. Otar Nr. Holbrook: Attached 1s a copy of our .August 9, 1984, memo regarding stipulations we recommended far West Elk Caal Campnny's subsidence monitoring network. We hove noted in the proposed revision a provision which was not covered in Mest Elk's initial proposal to us. This provision calls far 4 ft. by 4 ft. white plywood targets to 6e placed over each monitoring station. My estlaate is that approxtmntety 90 of these wilt be needed. We are concerned with visual impacts of this added use; but since we are unable to address these impacts on the ground during winter months, it is difficult to ,fudge how significant they are. I have diseuased these concerns with Rocky Bowman of ARCO, and we have agreed to submit the following recommandatian: A. Investigate visual impacts to the spring of 1985. A. 1. If visual impacts are Judged by the Forest Service to be insignificant, nothing further wtil be required. A. 2. If visual impacts are fudged 6y the Forest Service to be significant, a stipulation will be added to the permit requiring that the panels be turned so that the neutral,,; (brown) coior faces up during non-snow covered periods (from June - October 15) except during specific times ~ '. when subsidence measurements are befog made. ' We would also recoemend that the following stipulation be added: A11 subsidence markers end panels wilt be removed at the conclusion of the pro,{ect. ientetive plans call for this to occur in 1989; therefore rsaoo-ulw