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M DESERADO MINE <br /> BLUE MOUNTAIN ENERGY <br /> 3607 County Rd. 65 <br /> Ranyely,CO 81648 <br /> (970)675-4300 <br /> fax(970)675-4399 <br /> January 21, 2020 <br /> Mr. Clayton Wein <br /> Division of Reclamation, Mining and Safety <br /> 1313 Sherman Street, Room 215 <br /> Denver, CO 80203 <br /> RE: Professional Certification for the Coal Processing Waste Banks <br /> Deserado Mine-Permit No. C-1981-018 <br /> Dear Clayton: <br /> During the fourth quarter of 2019, qualified persons working under my direction and I conducted <br /> a series of compliance inspections on the active coal processing waste banks located within the <br /> Deserado permit area. These inspections were conducted roughly on a bi-weekly basis. <br /> I am a professional engineer registered in the State of Colorado and my experience fulfills the <br /> requirements of the Colorado Surface Coal Mining Reclamation Act. <br /> The purpose of these inspections and subsequent certification is to ensure proper construction of <br /> the refuse piles and to satisfy the requirements of Rule 4.10.2 of the Colorado Mined Land <br /> Reclamation Board. <br /> INSPECTION OF ACTIVE AREAS 2-3-4 and 5A <br /> There are no apparent points of seepage, or indications of slope failure on the active piles. The <br /> surface drainage facilities were adequately maintained and were working properly to convey <br /> surface runoff. Sediment control structures need periodic maintenance and are cleaned out as <br /> conditions warrant. <br /> The following maintenance work was completed since the last quarterly report: <br /> 1. Refuse was placed and compacted on Area 2-3-4 as well as Area 5. Operational <br /> changes at the preparation plan have resulted in refuse that requires more drying time, <br /> so both active areas are being utilized. <br /> Our permit requires no sub-drain system, as geotechnical investigations for the disposal site <br /> revealed no groundwater present. <br /> Refuse is spread and compacted in lifts not exceeding 24" in depth. Typically refuse is spread <br /> much thinner producing 6" to 8" lifts. <br />