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iii iiiiii~iiiiii iii 9g9 United States Department of the Interior OFFICE OF SURFACE MINING RECLAMATION AND ENFORCEMENT SUITE 310 625 SILVER AVENUE, S. W. ALBUQUERQUE, NEtV MEXICO 87102 ~uN o s ~9as ~o~ rw~ ~~ ~~ ~r ~~ ~ i In Reply Refer To: 4480 MRP Mr. Fred Banta, Director JUN 1 0 1988 Mined land Reclamation Division Department of Natural Resources MIIl11:p („ARID 423 Centennial Building RECLAAAATIOIN i:)II/1~a;f,Y~ 1313 Sherman Street Denver, CO 80203-2273 Re: OSMRE-AFO Initial Concurrence on Phase I Bond Release North Thompson Creek Mine, Permit C-81-025 Dear Mr. Banta: The Office of Surface Mining Reclamation and Enforcement (OSMRE) is prepared to initially concur on the proposed Phase I partial bond release for the North Thompson Creek Mine and the Carbondale Loadout Facility. OSMRE-AFO agrees with the Division's proposed decision dated March 9, 1988 that a 60-percent release of the present total reclamation bond of $804,300 will reduce the bond by $482,580 to $321,720 to be retained for Phase II and final reclamation requirements. This final figure, which includes $45,000 of bond to restore 2 acres of Prime farmland (if required under further rulemaking - issue remanded by District Court Judge Flannery), appears to be sufficient. The $482,580 release represents successful backfilling and grading of the 60 acres permitted for disturbance at the loadout and 67 out of 69 acres permitted for disturbance at the minesite. All items of concern after AFO's December 17, 1987 site inspection have been adequately addressed. Colorado's Inactive Mine Reclamation Program, as documented in the proposed decision and in David Rolm's letter of May 26, 1988 to AFO, has assumed reclamation responsibility for the abandoned 1'12 portal and its associated PMDT system for acidic drainage. IMRP also assumes maintenance responsibility, in accordance with Mr. Holm's letter, ensuring that the new acidic treatment system will not impact the reclamation recently completed on the minesite. Proof of Publication of the Notice of Proposed Decision was received by the Division on May 9, 1988 and was later forwarded to AFO. The May 9 receipt date indicates that the Mined Land Reclamation Board, which must approve the proposed release after public notification, has only recently given its concurrence. The Board minutes for May have not yet been received as part of the monthly mailing to AFO.