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ANNUAL SEDIMENTATION POND INSPECTION REPORT <br />CDMR Rule 4.05.9(15) <br />Mine: New EIk <br />NPDES ID. No.: None: Containment Area RDA-SW <br />Inspection Period: Fourth Quarter 2005 <br />Inspection Date: 12/28!05 <br />General Description or Reference to Site Plan: <br />This containment area lies west 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 4/24/93. The Stage storage curve shows <br />top of embankment at 7415' with sediment accumulation to 7413.5'. <br />EMBANFaNENT <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 />Yes <br />No !~ <br />4). Erosion of the downstream tce of the embankment? Yes <br />Cause of erosion can be attributed to: <br />No l/ <br />5). Is seepage occurring through the dam? Yes <br />Could this seepage puss potential instability? <br />No (/' <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 Wafer <br />Elevation to top of <br />No // <br />~~ .A <br />MSHA Qualified Impoundment 1 Spector <br />Z ~zB/o.~' <br />Date <br />Excellent Moderate ew Poor <br />Extensive ome Few None <br />~~,. tj~, , `.,. <br />hate ~ u " <br />'e~ '~~3a""• <br />Page 1 '~,~ <br /><;ti-,+ <br />~ ~ :. ,~e~ <br />