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To date, a total of 3,854,692 tons of refuse have been placed in [he 2/3/4 combined sub-area and a <br />total of 417,829 tons of refuse have been placed in sub-area Sa. <br />Four compaction tests were perfonned on sub-area 2/3/4 during the quarter. All areas tested <br />exceeded the required Proctor level of 90%. <br />The topsoil and subsoil piles for sub-areas 1, 2-3, 4 and Sa have been seeded and are stable. <br />Vegetative growth appears adequate to control erosion on the piles with the exception of the very <br />tops of the Sa soil piles. These piles received additional material this past summer during the <br />enlargement of the sediment ponds and the refuse pit combination. The areas that received the <br />new soil are essentially flat and were left rough to retain moisture. They were seeded this winter <br />to further stabilize the piles. <br />Quarterly monitoring of RP-4 refuse pond etnbankment has continued, and to date appears to be <br />stable. <br />To the best of my knowledge, based on my professional expertise, the permanent refuse structures <br />a[ the Deserado mine are being constructed in conformance with the prudent state-of--the-art <br />construction practices as they relate to coal processing waste bank construction. Further, the <br />structures are being constructed in compliance with the approved design, as specified within <br />Section IIl.B.3 of the approved permit documents and depicted on Maps 76, 77, 82 and 83 and <br />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-018-81, issued <br />by thS redo Division of Minerals and Geology. <br />/-ZG-~ <br />.E. <br />P.E. No. 30263 <br />xc: Murari Shrestha <br />Jeff Dubbert <br />Scott Wanstedt <br />File <br />