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iii iiiiiiiiiiiu iii <br />999 <br />• • <br />STATE OF COLORADO <br />DIVISION OF MINERALS AND GEOLOGY <br />Department of Natural Resources <br />I31 J Sherman 51., Roam 215 <br />Denver, Colorado 80203 <br />Phone: 1303) 866-3567 <br />FAX: IJU3183?-A106 <br />August 3I, 1999 <br />Michael G. Altavilla <br />Seneca Coal Company <br />DIVISION O F <br />MINERALS <br />GEOLOGY <br />g/ar~5y RECLAMATION <br />MINING•SAFE7Y <br />ell oven: <br />Governor <br />P.O. Box 670 <br />.GregE wakhe. <br />Hayden, CO 81639 Etecunve Dueaor <br />Michael 8. Long <br />Division Dveaor <br />Re: Yoast Mine (Permit No. C-94-082) <br />Permit Revision No. 1 -Updated Life-of-Kline Plans for Mining and Reclamation <br />Adequacy Review <br />Dear Mr. Altavilla: <br />The Division of Minerals and Geology (Division) has reviewed Seneca Coal Company's (BCC's) <br />responses to our adequacy review comments for Permit Revision No. 1. The Division has the <br />following remaining comments regarding the July l5, 1999 PR-O1 adequacy response submittal. <br />The comments numbered below correspond to the same numbered paragraphs contained in our <br />review letters dated April 23, 1999 and May 14, 1999. <br />The Division is in the process of reviewing the reclamation cost estimate submitted with <br />Technical Revision No. ]0. SCC has incorporated reclamation costs in the TR-10 submittal <br />pertaining to facilities contained in PR-O1. The Division must finalize its review of the TR-LO <br />submittal, prior to approval of PR-O1. <br />April 23, 1999 Review Letter <br />2.05.4(2)(e) Reveeetation Plan <br />1-4. Responses accepted. <br />2.05.6(3) and 2.06.8 Alluvial Valley Floors <br />5. Response accepted. <br />6. The Division has not finalized its review of BCC's response to Comment 6. As soon as <br />this review has been completed, any remaining comments will be forwarded to you. <br />Response accepted with one correction. The water quality in Sage Creek is predicted to <br />be 2.9 mmhos/cm instead of 2. l as stated in the third paragraph. <br />