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-- -- <br />Three compaction tests were performed on sub-area 2/3/4 during April. All areas tested exceeded <br />the required Proctor level of 90%. <br />Ttte topsoil and subsoil piles for sub-areas I, 2-3, 4 and Sa 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 to date appears to be <br />stable. <br />To the best of my knowledge, based on my professional expertise, the permanent refuse structures <br />at 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 III.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, [hat the permanent refuse disposal structures at <br />Blue Mountain Energy, Inc., Deserado Mine, located in Rio Blanco Cowtty, Colorado, are being <br />constructed in compliance with the design approved as a portion of Permit No. C-O18-81, issued <br />by the Colorado Division of Minerals and Geology. <br />xc: Jeff Dubbert <br />Scott Wans[edt <br />File <br />