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:„ <br />E <br />S ~'~~^~ Seneca Coal Company <br />June 21, 2007 <br />Mr. Michael Boulay <br />Division of Reclamation, Mitring and Safety <br />101 South 3A, Suite 301 <br />Grand Junction, CO 81501 <br />(970) 243-1571 <br />Re: Yoast Mine (Permit No. G94-082) <br />Technical Revision No. 35 (TR-35) <br />Postmine Channel YPM-21 Design <br />Deaz Mr. Boulay: <br />RECEIVED <br />JUN 2 5 2001 <br />Division otand Safety n <br />Mining <br />Enclosed aze two (3) copies of an application fot a technical revision to the Yoast Mine Permit (C-94- <br />082). A third copy has been sent to the Denver office also addressed to you. TR-35 presents a <br />postmine channel design to repair atill/gully feature along the southwest side of the North Pit The <br />Colorado Division of Reclamation, Mining and Safety (Division) eaduded the rill/gully feature from <br />the North Pit azea Phase I Bond Release Findings Document for being erosionally unstable. <br />Seneca Coal Company (SCC) has prepared a channel design to address the Division's concerns. As <br />shown on Exhibit 20-2, Postmitilng Topography Map, three channel segments, designated as YPM-21, <br />-21A and -21B, aze planned to address the rill/gully feature in this azea. <br />Attached are the required application form, public notice, insertion instmctions, and the <br />revised/updated material Should you or any other member of the Division have questions regazding <br />the information, please contact me at (970) 276-5227 or (970) 846-3648. <br />Sincerely, <br />~~ <br />Roy A. Kazo <br />Reclamation Manager <br />Seneca Coal Company <br />enclosure(s) <br />cc: <br />John Husband (BI.Ivi) <br />Cazl Johnston (OSMRE) <br />Seneca Coal Company • P.O. Box 870 • Hayden, Colorado 81639 <br />Telephone (970) 278-3707 • FAX (970) 2763014 <br />