_INSPECTION - C1980001 (24) - Laserfiche WebLink

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III. COMMENTS -COMPLIANCE Below are comments on the inspection. The comments include discussion of observations made during the inspection. Comments also describe any enforcement actions taken during the inspection and the facts or evidence supporting the enforcement action. This was a partial coal inspection conducted by.Jason Musick of the Colorado Division of Reclamation, Mining, and Safety (Division) on 10 June 2008. This inspection was an Office of Surface Mining (OSM) oversight inspection for impoundment compliance. Christine Belka, Elizabeth Shaeffer and Howard Strand of OSM accompanied the inspection. The weather was clear and the ground was dry during the on-the-ground inspection of the site. Hydrologic Balance The Moffat Pond contained a small amount of clear water at the time of the inspection. The Moffat Pond utilizes a 12" corrugated steel pipe primary spillway and a rock lined emergency spillway. Approximately %of the primary spillway was discharging at the time of the inspection and the spillway appeared to be functioning as permitted. The emergency spillway appeared to be stable with no problems noted at the time of the inspection. Moffat Down Drains 1 through 4 and the Moffat Final Pit Down Drain appeared to be dry and stable at the time of the inspection. Water draining from the seeps and springs at the southern end of the pond was entering the pond at the southern inlet. The pond embankments appeared to be well vegetated and stable with no signs of erosion or damage at the time of the inspection. There appeared to be a small head-cut forming on the slope just to the west of the pond above the Lower Moffat Road. The Center Ridge Pond contained water at the time of the inspection. The Center Ridge Pond utilizes a corrugated steel pipe primary spillway and a rock lined emergency spillway. The discharge at the time of the inspection was approximately %full through the 36" primary spillway. The emergency spillway appeared stable with no sighs of water flow. The pond embankments appeared stable and well vegetated at the time of the inspection. The discharge from the permanent diversion ditch from the West Ridge Pond combined with the discharge from the Center Ridge Pond was reading at .5 through the flume between the Center Ridge Pond and Trout Creek. The West Ridge Pond contained water at the time of the inspection. The West Ridge Pond utilizes a corrugated steel pipe primary spillway and a rock lined emergency spillway. There was a trickle of water discharging at the time of the inspection. The emergency spillway appeared to be stable with no signs of damage at the time of the inspection. The pond embankments appeared stable with good vegetation and no signs of damage or erosion at the time of the inspection. Seep 23 on the west side of the pond appeared to be discharging and draining into the pond at the time of the inspection. There appeared to be a low percent of vegetation cover at the site of the seep. The lower cell of the West Ridge Pond contained water and appeared to be stable and well vegetated at the time of the inspection. The "Sting-of-Pearl' check dams were dry at the outlet, with some ponding at the check dams toward the middle and top of the drainage. All permanent impoundments at the Edna Mine appeared to be in compliance with Rule 4.05.9 at the time of the inspection. The Impoundments appeared to have functioned as designed through the recent spring run-off. No sign of erosion or damage was noted at the time of the inspection.