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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 #2 <br />Inspection Period: Second Quarter 2008 <br />Inspection Date: 06/30/08 <br />General Description or Reference to Site Plan: <br />This containment basin lies east of the West Portal Warehouse. Specifications are detailed on the <br />Containment Area No.2 as built drawing dated on April 26, 1993. The stage storage curve shows <br />top of embankment at 7592.0' with sediment accumulation to 7586'. <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 Macerate Few Poor <br />Extensive Some co None <br />Yes No 4-- <br />4). Erosion of the downstream toe of the embankment? Yes No (,- <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 No L/ <br />SEDIMENT STORAGE CAPACITY <br />1). Has the design storage capacity of the reservoir been surpassed? <br />Yes No v- <br />Elevation @ top of. Gm IC rr! ,-t a - <br />Elevation of Water Surface: J)lC u <br />Elevation to top of Sediment: <br />OTHER OBSERVATIONS <br />ern ccx c? t- <br />im I /?, <br />MSHA Qualified Impoundment I r <br />7/ <br />Date <br />S'u <br />r <br />P Iona Engineer Directing Inspecti _ <br />Date - ` ; - <br />Page 1 <br />it