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United States Department of the Interior OFFICE OF SURFACE MINING Reclamation and Enforcement nR00K5 TOWERS 1020 15TH STREET DENY ER, COLORADO 50202 June 24, 19II2 Mr. David C. Shelton Director, Mined Land Reclamation Room 423 Centennial Building 1313 Sherman Denver, Colorado 80203 Dear Mr. Shelton: i ii i ii i ii i ii i i i ii i i a ~ ~~0.~ We have reviewed the Atlantic Richfield application fora revision to OSM Permit No. CO-0021. The application was also reviewed by the Minerals Management Service and the U.S. Forest Service. The application for exploration drill holes is approved and the permit is conditionally revised with the following stipulations, which are listed by Federal agency. OSM 1. A 100% cultural resource inventory of the areas to be disturbed must be conducted prior to any disturbance of those areas not previously invento- ried. 2. A provision in the application must be included for mulching the 3.14 acres of area to be reclaimed at a rate of 2,000 pounds of straw per acre, and crimping it into the soil in the event that there is insufficient slash material to provide adequate surface erosion control and soil mois- ture retention. 3. The applicant must inspect the reclaimed area in June and September of each ass<s: year during the bond liability period to access the effects of graz- ing on the new vegetation and make a record of the findings of the inspec- tion which will be kept at the mine for review. Minerals Management Service 1. Drill hole data and an abandonment report must he submitted to the Dis- trict Mining Supervisor within 30 days after the Calendar year. Enclosed is a copy of the requirements for submission of drilling and abandonment information. 2. A11 drill holes must be plugged, at a minimum, in accordance faith the re- quirements shown on the enclosed illustration. 3. All drill fluid, foam, cuttings, and water must he contained on the drill site. Pits should be of adequate size to contain all fluid. (Also see Forest Service stipulation no. 5) 4. The Minerals hlanagement Service shall be notified prior to the time dril- ling commences on the lease. .. - ~"- -- 'r~~~•• ~"~ cn~ciio lull i~'y~VC~I 111 Wf IL Illy Uy 611C UI$lr'II;6 nanyer Or his representative. 10. Operations will not be allowed under muddy or wet conditions. 11. Violations of these stipulations are grounds for "shutting down" and any or all operations permitted under this portion of the permit. "Shut down" notices wil] be given in writing by the District Ranger or his representa- tive. 12. If sufficient water is discovered, AR CO and the District Ranger will work together to determine and implement methods of making this water available to cattle and wildlife.