Laserfiche WebLink
Permanent out slopes remain at approximately 90% complete on the toe of sub-area 2-3 and 4. <br />The infill between these sub-areas is complete. The slopes appeared stable with some localized <br />erosion noted. <br />No compaction tests were performed during the quarter as all material was stockpiled. <br />Conditions were not conducive to effective drying and compaction of refuse material. <br />Refuse Area 5A has progressed to the point where the drainage characteristics are starting to <br />evolve. The in-pit ditch on the west side is established with appropriate channel protection to <br />carry the projected runoff. <br />To date, a total of 5,477,156tons of wet refuse have been placed in the 2/3/4 combined sub-area <br />and a total of 2,758,736 tons of wet refuse have been placed in sub-area 5a. <br />The topsoil and subsoil piles for sub-areas 1, 2/3/4 and 5a have been seeded and are stable. <br />Vegetative growth appears adequate to control erosion on the piles. <br />Quarterly monitoring of RP-4 refuse pond embankment has continued, and appears to be stable. <br />To the best of my knowledge, based on my professional expertise, the permanent refuse <br />structures at the Deserado mine are being constructed in conformance with the prudent state-of- <br />the-art construction practices as they relate to coal processing waste bank construction. Further, <br />the structures are being constructed in compliance with the approved design, as specified within <br />Section III.B.3 of the approved permit documents and depicted on Maps 76, 77, 77A and 150 <br />and other permit documents or maps as amended from time to time. <br />I certify, based on my field observations and those observations of my qualified designates and <br />professional investigations, as detailed above, that the permanent refuse disposal structures at <br />Blue Mountain Energy, Inc., Deserado Mine, located in Rio Blanco County, Colorado, are being <br />constructed in compliance with the design approved as a portion of Permit No. C-1981-18, <br />issued by the Colorado Division of Reclamation, Mining and Safety. <br />COUNTY ROAD 65 SUBSIDENCE REPORT <br />Longwall mining occurred under County Road 65 during the quarter. Only superficial signs of <br />subsidence were noted and no corrective actions were necessary. <br />t ?ctfullyF" <br />0 o <br />oy?°'6p <br />Wl std , , P.E. <br />Project ngineer <br />Colorado Registered P.E. No. 30263 <br />xc: Jeff Dubbert <br />Scott Wanstedt <br />File