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Refuse Area SA is progress to the point where drainage chazacteristics are starting to evolve. The in-pit ditch on the west side was established with appropriate channel protection to carry the projected runofl: To date, a total of 5,065,515 tons of wet refuse have been placed in the 2/3/4 combined sub-area and a total of 913,292 tons of wet refuse have been placed in sub-area Sa. Seventeen compaction tests were performed during the quarter. All azeas tested exceeded the required Proctor level of 90%. The topsoil and subsoil piles for sub-azeas 1, 2/3/4 and Sa have been seeded and aze stable. Vegetative growth appeazs adequate to control erosion on the piles. Quarterly monitoring of RP-4 refuse pond--embankment has continued, and to date ~ appeazs to be stable. To the best of my knowledge, based on my professional expertise, the permanent refuse structures at the Deserado mine aze being constructed in conformance with the prudent state-of--the-art construction practices as they relate to coal processing waste bank construction. Further, the structures are being constructed in compliance with the approved design, as specified within Section III.B.3 of the approved permit documents and depicted on Maps 76, 77, 77A, 81 and 83 and other permit documents or maps as amended from time to time. I certify, based on my field observations and those observations of my qualified designates and professional investigations, asdetailed above, that the permanent refuse disposal structures at Blue Mountain Energy, Inc., Deserado Mine, located in Rio Blanco County, Colorado, aze being constructed in compliance with the design approved as a portion of Permit No. C-1981-18, issued by the Colorado Division of Minerals and Geology. _~- ,,. Williatri-C. Lepro, P.E. Pr ject Engineer Colorado Registered P.E. No. 30263 ~. xc: Jeff Dubbert Scott Wanstedt File