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i • <br />Mr. Tom Gillis <br />August 20, 1986 <br />Page 2 <br />To the best of my knaaledge, based upon my professional expertise, the <br />permanent refuse structures at the Deserado Mine are being constructed <br />in conformance with the prudent state-of-the-art of coal processing waste <br />bank construction. Further, the structures are being constructed in <br />compliance with the approved design, as specified within Section III-20 <br />of the approved permit documents and depicted on Maps 76, 77, 82 and 83. <br />I certify, based upon my field observations and professional investigations, <br />as detailed here above, that the permanent refuse disposal structures at <br />Western Fuels-Utah, Inc., Deserado Mine, located in Rio Blanco County, <br />Colorado, are being constructed in Canpliance with the design approved as <br />a portion of Permit No. C-018-81, issued by the Colorado Mined land <br />Reclamation Division. <br />Ras~ctfulll~ ~~j/ <br />Michael J. ~r~~igand', P.E. <br />Chief. Ebg_n~~;/Construction Manager <br />Colorado Fe3istered P.E. No. 19143 <br />MJW:ph <br />cc: Don Deardorff <br />Bob Johnson <br />John Trygstad <br />Tim Chervick <br />MW File <br />~~~~ <br />19143 ~ _ <br />.: a~ <br />t ~.. <br />G <br />~.L iH <br />