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QUARTERLY SEDIMENTATION POND INSPECTION REPORT <br />CDMR Rute 4.05.9(17) <br />Mine: New Elk RDA Containment North <br />NPDES ID. No.: None <br />Inspection Period: Secrond Quarter 2007 <br />Inspection Date: 0627/07 <br />General Description or Reference to Site Plan: <br />This incised containment basin is a non~ischarging facility designed to contain run-0ff from the <br />RDA belt conveyor area north of highway 12. <br />EMBANKMENT <br />1). Adequacy of the vegetative cover. <br />2). Erosion forming Gullies: <br />Excellent Moderate Few oor <br />Extensive Some ~Few1 None <br />3). Is wave action causing erosion: <br />On the Upstream embankmenCT <br />Yes <br />4). Erosion of the downstream tce of the embankment? Yes <br />Cause of erosion can be attn"buted to: <br />5). Is seepage aocurring through the dam? Yes <br />Could this seepage puss potential instability? <br />No l~ <br />No r. <br />No t/ <br />SEDIMENT STORAGE CAPACITY <br />1). Has the design storage capacity of the reservoir been surpassed? <br />Yes <br />Explain: <br />OTHER OBSERVATIONS: <br />No V <br />~~~~~~ <br />MSHA Qualified Impoundment 1 spector <br />L /~7/per <br />Date <br />