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III. COMMENTS -COMPLIANCE <br />Below are comments on the inspection. The comments include discussion of observations made during the <br />inspection. Comments also describe any enforcement actions taken during the inspection and the facts or evidence <br />supporting the enforcement action. <br />This partial inspection of the Carbon Junction Coal Mine was conducted by DMG staff from the <br />DMG Durango Office, 701 Camino del Rio, Room 125, Durango, CO 81301, phone (970) 247- <br />5469. No individuals were contacted during the inspection. Reclamation equipment was <br />present but temporarily dormant. Evidence of recent reclamation activities were observed at the <br />south highwall, rock fill area and diversion structure for the east and west collection channels. <br />Mine identification sign was posted at the mine entrance. Permit boundary markers were <br />posted. Topsoil stockpile signs were posted. <br />Backfill and grading of the south highwall to approximate 3H:1V slope appeared near <br />completion. Topsoil, previously distributed on the rock fill area, was being salvaged to allow <br />additional grading to the rock fill area. Work on the rock lined diversion structure for routing <br />drainage around the rock fill area had advanced. The rock lining consists of large boulders, <br />approximately 24" diameter, underlain with screened gravels, approximately 3" diameter. <br />Sediment Pond 1, located at the far south end of the permit area, was holding water in isolated <br />puddles, not greater than 0.5' depth, no discharge noted. The pond embankment, inslopes and <br />bottom were well vegetated and stable. Primary and secondary spillways appeared to be clear <br />of sediment and debris, and capable of functioning as designed. Impounded water was <br />concentrated at the south end of the pond. Roadside drainage ditches and culverts, conveying <br />affected area drainage to Pond 1, were well maintained. <br />Sediment Pond 2, located along the west side of the permit area, was dry, no discharge noted. <br />The pond embankment, inslopes and bottom were well vegetated and stable. Primary and <br />secondary spillways appeared to be clear of sediment and debris, and capable offunctioning as <br />designed. Evidence of erosion and sedimentation was observed at the pond inlet. Rock check <br />dams were intact for the upper portions of the inlet ditch. Maintenance clean out of sediment <br />between the check dams is necessary to ensure their continued function and to ensure <br />adequate capacity for the ditch. Evidence of erosion was observed in the steep slope portions <br />of the ditch. Maintenance of the rock check dams for the steep portions of the ditch is <br />necessary to ensure stability of the ditch and pond inlet. Evidence of sediment escaping the <br />sediment containment structure was not observed. <br />