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III. COMMENTS -COMPLIANCE Below aze comments on the inspection. The comments include discussion of observations made during the inspection. Comments also describe any enforcement acfions taken during the inspection and the facts or evidence supporting the enforcement action. Jerry Nettleton of Twentymile Coal Company (Twentymile) accompanied Byron Walker (Walker) of the Colorado Division of Minerals and Geology (Division) during this inspection, except for checking of records. Sandra White of Twentymile accompanied Walker during the checking of on-site records. Photographs included in this report aze on file in digitized form at the Division, and will be provided to Twentymile upon request. No one accompanied Walker on water quality measurements around, but off, the pemtit azea, and the records check at the Routt County Court House. An advance copy of this report was provided to the operator by a-mail. A courtesy copy of the report was provided to Jeff Coombe, Colorado Department of Public Health and Environment (CDPHE), by a-mail. AVAILABLITY OF RECORDS Public review copies of the Technical Revision Applications 45, 46, and 47 were found on file at the Routt County Court House. All required records were found on file at the mine site. HYDROLOGIC BALANCE There was no dischazge from (Colorado Department of Health and Environment [CDPHE] Permit CO- 0027154) Ponds C (004A), E (006A), F(007A), G (OOSA), and T (002A). There was an estimated 0.04 cubic feet per second dischazges at Pond D (OOSA)(0.05 foot on the 12-inch flume gage). The operator reported no discharge from the Fish Creek Borehole (CDPHE Permit CO-0042161 Outfa11001), and it was not inspected. Dischazge from the Fish Creek Tipple Pond (CDPHE Permit CO-0036684 Outfa11001A) was estimated at 0.005 cubic feet per second (2.2 gallons per minute)(1 inch in a 90 degree V-notch weir). Water quality measurements were made at sampling sites on streams about the permit azea. See the map attached. BACICFILL AND GRADING Backfill and grading requirements aze associated with long-term mining facilities. No such activities were observed or underway at the time of this inspection. PROCESSING WANE The coal mine waste bank (waste bank) was in good shape, and in compliance with the regulations. Processing waste (waste material) was being hauled to disposal azea 2, and was being placed in echelon rows on the surface of the waste bank to drain. Some remnant surge stockpile coal mine waste materials (those waste materials stockpiled during the winter pending thawing and those wet materials in need of draining) were also located at the southern end of the waste bank (Area 3). SUPPORT FACILITIES The discharge drop culvert of the road culvert above the Fish Creek Tipple sedimentation pond has sepazated. C-1952-056 CP Inspection of April 2Q, 2005, Page 3 of 5 pages. BGw