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ENERGY, INC. <br />~ sne.w;ary o~ <br />Dt~eM Grnentlon 6 <br />TInNT{LfIOn COapLNNVL <br />Dear Dan: <br /> <br />August 2, 2001 <br />Mr. Dan Mathews <br />,,, <br />~1~./fl ~ <br />Colorado Division of Minerals and Geology <br />101 South 3`d, Suite 301 <br />Grand Junction, CO 81501 <br />iiiiiiiiiiiiiiiiiii <br />999 <br />RE: Professional Certification for the Coal Processing Waste Bank at <br />the Deserado Mine. <br />Permit No. C-1981-018 <br />During the second quarter of 2001, qualified persons working under my direction and I <br />conducted a series of compliance inspections on the active coal processing waste banks <br />located within the Deserado permit area. These inspections were conducted roughly on a <br />bi-weekly basis. <br />I am a professional engineer registered in the State of Colorado and my experience <br />fulfills the requirements of the Colorado Surface Coal Mining Reclamation Act. <br />The purpose of these inspections and subsequent certification is to ensure proper <br />construction of the refuse piles and to satisfy the requirements of Rule 4.10.2 of the <br />Colorado Mined Land Reclamation Board. <br />INSPECTION OF ACTIVE AREAS 2-3.4 and Sa <br />There are no apparent points of seepage, or indications of slope failure on the active piles. <br />The surface drainage facilities were adequately maintained and were working properly to <br />convey surface runoff Sediment control structures need periodic maintenance and are <br />cleaned out as conditions warrant. <br />The following maintenance work was completed since the last quarterly report: <br />1. Refuse was stacked on sub-area Sa for spreading and compaction this summer. <br />2. Refuse was spread and compacted on sub-area 2-3, 4. <br />Our permit requires no sub-drain system, as geotechnical investigations for the disposal <br />site revealed no groundwater present. <br />Permanent out slopes remain at approximately 85% complete on the toe of sub-area 2-3 <br />and approximately 80% complete on the toe of sub-area 4. The infill between these sub- <br />areas is completion. The slopes appeared stable with some localized erosion noted. Pit 5 <br />3607 Cowry RD q63 <br />Rengely,CO BI64R <br />970-673J700 <br />Fax 970fi734399 <br />