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ANNUAL SEDIMENTATION POND INSPECTION REPORT <br />CDMR Rule 4.05.9(15) <br />Mine: New Elk <br />NPDES ID. No.: None: Containment Area RDA -SE <br />Inspection Period: Second Quarter 2016 <br />Inspection Date: 06/20/16 <br />General Description or Reference to Site Plan: <br />This containment area lies East of the RDA refuse conveyor and south of Hwy. 12. It is designed <br />to contain run-off from this area of the RDA belt conveyor. Specifications are detailed on the <br />Containment Area RDA -SE As built drawing dated 2/26/93. The stage storage curve shows <br />top of embankment at 7413' with sediment accumulation to 7412.1'. <br />EMBANKMENT <br />1). Adequacy of the vegetative cover: <br />2). Erosion forming Gullies: <br />3). Is wave action causing erosion: <br />On the Upstream embankment? <br />Excellent Moderate Few <br />Extensive Some Fe <br />4). Erosion of the downstream toe of the embankment' <br />Cause of erosion can be attributed to: <br />5). Is seepage occurring through the dam? <br />Could this seepage cause potential instability? <br />Yes <br />Yes <br />Poor <br />None <br />No be— <br />No t/ <br />Yes No __l;� <br />SEDIMENT STORAGE CAPACITY <br />1). Has the design storage capacity of the reservoir been surpassed? <br />Yes <br />Elevation @ top of: <br />Elevation of Water Su <br />Elevation to top of Sec <br />OTHER OBSER)(ATIONS <br />No <br />MSHA Qualified Impoundment I pector <br />Date <br />Page 1 <br />Date <br />WAN <br />