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STATE OF COLORADO <br />DIVISION OF RECLAMATION, MINING AND SAFETY <br />Department of Natural Resources <br />1313 Sherman St., Room 215 <br />Denver, Colorado 80203 <br />Phone: (303) 866-3567 <br />FAX: (303) 832-8106 <br />Mazch 16, 2007 <br />Mr. Roy Kazo <br />Seneca Coal Company <br />P.O. Box 670 <br />Hayden, Colorado 81639 <br />Re: Seneca II Mine (Permit No. C-1980-005) <br />Technical Revision No. 43 (TR-43) <br />Permanent Retention of Facilities -Adequacy Review <br />Deaz Mr. Kazo: <br />COLORADO <br />DIVISION OF <br />RECLAMATION <br />M[NING <br />&- <br />SAFETY <br />Bill Ritter, Ir. <br />Governor <br />Harris D. Sherman <br />Executive Director <br />Ronald W. Cattany <br />Division DIreC10r <br />Natural Remurce Trustee <br />We have completed a review of your application for Technical Revision No. 43 for the Seneca II Mine <br />permit, and have the following comments: <br />Please include a detailed discussion, for the permit application package, of how each structure <br />listed on Page 13-7a that is proposed for retention is compatible with the approved postmining <br />land use (rangeland), as described in Rule 1.04(71)(c). <br />2. Table 13-4-1 of the permit application package and/or Task 001 of the Division's reclamation <br />cost estimate include the following structures/materials that aze not addressed in TR-43 and not <br />currently approved for permanent retention. Based on our telephone conversation yesterday, <br />Seneca Coal Company may have intended for Grassy Creek Holding Company to permanently <br />retain some of these items. Seneca Coal Company may revise the application to include these <br />items, or they will remain in the reclamation cost estimate until a bond release is granted. The <br />items aze: <br />- Engineering Trailer <br />- Magazines, Trailers, and ANFO silos at the explosives storage area <br />- Gas Tank at the shop area <br />- Surface water monitoring flumes <br />- Weather monitoring station <br />- Culverts A1, A2, A4, A7, la, 17a, 34a, 34aa, and SOa. <br />Office of Office of <br />Mined Land Reclamation Denver Grand Junction Durango Active and Inactive Mines <br />