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ENERGY, INC. <br />a sue,immy nj <br />Desem Genemion & <br />rnw'mittion CoaptnUive <br />July 30, 2002 <br />RECEIVED <br />JUL 31 2002 <br />Mr. Dan Mathews <br />Colorado Division of Minerals and Geology Division of Minerals s Ge°lo <br />101 South 3`s, Suite 301 sY <br />Grand Junction, CO 81501 <br />RE: Professional Certification for the Coal Processing Waste Bank at <br />the Deserado Mine. <br />Permit No. C-1981-018 <br />Dear Dan: <br />During the second quarter of 2002, 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 azea. 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 Boazd. <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. Spreading and compaction of refuse was reinitiated on Refuse Area 2/3/4. <br />2. Spreading and compaction of the stockpile on Refuse Area Sa was initiated. <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 4. The infill between these sub-areas is completion. The slopes appeared stable with <br />3607 County ftD H65 <br />Rangely, CO 81648 <br />9706753300 <br />Fax 970675-0399 <br />