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<br /> <br />1313 Sherman Street, Room 215, Denver, CO 80203 P 303.866.3567 F 303.832.8106 http://mining.state.co.us <br />John W. Hickenlooper, Governor | Robert W. Randall, Executive Director | Virginia Brannon, Director <br />1313 Sherman Street, Room 215 <br />Denver, CO 80203 <br /> <br /> <br />August 15, 2016 <br /> <br /> <br />Mark Tobias <br />Office of Archaeology & Historic Preservation <br />History Colorado Center <br />1200 Broadway <br />Denver, CO 80203 <br /> <br /> <br />Re: Peabody Sage Creek Mine (Permit No. C-2009-087) <br /> Technical Revision No. 9 (TR-9) <br /> Hydrology Monitoring Plan Changes <br /> <br /> <br />Dear Mr. Tobias: <br /> <br />The Division of Reclamation, Mining and Safety hereby issues notice, in accordance with Title 34, <br />Article 33, Section 116, Paragraph 4, of the Colorado Revised Statutes, that on August 15, 2016 an <br />application to revise coal mining operations at the Peabody Sage Creek Mine was considered <br />complete for the purposes of filing. The revision was submitted by Peabody Sage Creek Mining, <br />LLC. All review and comment periods as provided in the Act and the Regulations initiate from <br />this date of filing. <br /> <br />Peabody Sage Creek Mining, LLC. has submitted this Technical Revision (TR-09) for Division <br />approval to modify the hydrologic monitoring plan. The proposed revised plan will eliminate <br />monitoring of several spoil spring sites, suspend monitoring of several wells while the mine is idle, <br />modify the frequency for bedrock and alluvial well monitoring, discontinue monitoring at Pond <br />004 since two additional upstream monitoring points have been initiated and the addition of a <br />qualifier that certain monitoring parameters will only be measured if the flow is less than 1 gallon <br />per minute at all stream and spring monitoring sites. The applicant is not proposing additional <br />surface disturbance outside of the area currently approved for disturbance. <br /> <br />The underground coal mining operation is on land located approximately 9 miles Southeast of <br />Hayden. The permit area is further described as follows: <br /> <br />Township 5 North, Range 87 West, all or portions of Sections 1, 2, 3, 4, 5, 8, 9, 10, 11, 12, 13, 14, <br />15, 16, 21 and 22; Township 6 North, Range 87 West, all or portions of Sections 27, 28, 29, 32, 33,