2019-02-12_REVISION - C1996083 - Laserfiche WebLink

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J. E. STOVER & ASSOCIATES INC. 2352 NORTH 7T" STREET, UNIT B GRAND JUNCTION, COLORADO 81501 PHONE: (970) 245-4101, FAX: (970) 242.7908 MINE ENGINEERING MINE RECLAMATION February 8, 2019 Janet Binns Division of Reclamation, Mining & Safety 1313 Sherman St., Room 215 Denver, CO 80203 Re: Bowie Resources, LLC, Bowie No. 2 Mine TR -118, Revise and reduce the size of gob pile #3 Permit C-1996-083 Dear Ms. Binns: CIVIL ENGINEERING CONST. MANAGEMENT On behalf of Bowie Resources, LLC, (BRL), enclosed is an application for a technical revision to reduce the size of gob pile #3 at the Bowie No. 2 Mine. Since the Bowie #2 mine is currently in temporary cessation and no longer producing coal mine waste, BRL proposes to reduce the size of gob pile #3. In doing so, the gob pile will re -vert back to the approximate configuration that was approved under Technical Revision No. 84. The main differences are the pile height and slope angle. The proposed slope angle will be 31-1:1V and therefore a new geotechnical study will not be necessary as the proposed pile falls under the approved slope angle and height. Please remove from the permit the following documents: Appendix B: Full Build Out Configuration Appendix B: Figure 2 Note: What is currently approved as Ditch J10 will become the East Clean Water Ditch with the proposed revision. BRL prefers to keep the existing road on the north side of the pile, and therefore Ditch J10 (current) will no longer need to function as the upper diversion ditch, it can become the Clean Water Ditch. The designation D -J10 will still be used on the proposed gob pile design. A new design for the East Clean Water Ditch is not attached. The difference in the contributing area to the revised location of the Clean Water Ditch is insignificant and contributes less than 0.1 cfs to the overall peak flow. The majority of the flow in the clean water ditch comes from upland areas, see design beginning on page Volume XI, App. B-69.