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<br />ENERGY, INC. <br />January 31, 2002 <br /> <br />n sna=~ of <br />Desercf 6;eneraGOn @ <br />Tmnvmision Caaper~ive <br />ffg y~~ <br />Mr. Dan Mathews p~~ <br />Colorado Division of Minerals and Geology "'°'~-~r ~~~,, <br />101 South 3`a, Suite 301 ~ "'"~' <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 />Deaz Dan: <br />During the fourth 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 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 appazent 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 spread and compacted on sub-areas 2-3, 4 and 5 <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-azea 2-3 <br />and approximately 80% complete on the toe of sub-area 4. The infill between these sub- <br />azeas is completion. The slopes appeared stable with some localized erosion noted. Pit 5 <br />consists of a relatively thin layer of refuse over the entire azea with the exception of the <br />3607 County RD q65 <br />Rnngely, CO 91648 <br />970-675-0300 <br />Fax 970fi76-0399 <br />