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E~~iA <br />S Coa/Company Seneca Coal Company <br />February 11, 2002 <br />RECEIVED <br />Mr. Michael Boulay FE$ 12 2002 <br />Division of Minerals and Geology <br />1313 Sherman Street, Room 215 Division of Minerals and Geology <br />Denver, CO 80203-2273 <br />(303) 866-3567 <br />RE: YOAST MINE (PERMIT NO. C-94-082) <br />Technical Revision No. 20 -Comment Response to 1/08/02 Adequacy Review <br />Dear Mr. Boulay, <br />Enclosed please find three copies of.revised and/or additional information for TR-20 addressing <br />the adequary comments in your January 08, 20021etter. Responses to each comment aze provided <br />below. <br />Comment 1. With thir revirion, a variance under Rsde 4.14J(l)(cJ it requested for the north pit area. Bared <br />on our review of the approved Operations Plan and the revired Backfil! and Grading Plan, it <br />appearr that a variance may alto be nererrary for the }Dart youth area. Mining commenced in the <br />2000-2004 (Pemtit Term 2) - Dirturbance Area in 2000. Mining it currently progrerring to <br />the youth of Sediment Pond Oft into the area rcbeduled jar backfi/l and grading in the yearr <br />2003-2005. If rough backfzll and grading cannot be completed within 180 dayr following coal <br />removal in any portion of the I'oart South Area, please incorporate there mining arear into this <br />variance nguert. <br />Response: Based on the Division's comment, SCC has revised Exhibit 19-1, <br />Backfill and Gtading, to more accurately represent the current conditions and the <br />proposed reclamation schedule. Page 5, Tab 19, has been revise to clarify and state <br />the reasons fot the variance request. <br />Comment 2. For those mining arear when a vanance it being nguer[ed from the approved backfill and grading <br />rrhedule, pleare provide an ertimated rchedule for completing conrtruction of port miuin8 drainage <br />channelr arrociated with there arear. <br />Response: The requested information has been included on revised Exhibit <br />19-1, Backfill and Grading. <br />Comment 3. The nvired text an Page S indicates that mining hat not been completed in the north pit area. It is <br />the Division i underrtandin8 that mining bar been completed at the north mining area. Bared on <br />review of the inrpectian reparlr and the Operations Plan, it it apparent that coal removal war <br />completed in the north area in January, 2000. Please clarify this dircrepanry and noire the text on <br />Page 5. <br />Response: Page 5 has been revised to clarify any discrepancies that existed. <br />Seneca Coal Company • P.O. Box 670 • Hayden, Colorado 81639 <br />Telephone (970) 276-3707 • FAX (970) 276-3014 <br />