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QUARTERLY SEDIMENTATION POND INSPECTION REPORT <br />CDMR Rule 4.05.9(17) <br />Mine: New Elk RDA Containment North <br />NPDES ID. No.: None <br />Inspection Period: Third Quarter 2010 <br />Inspection Date: 08/15/10 <br />General Description or Reference to Site Plan: <br />This incised containment basin is a non-discharging facility designed to contain run-off from the <br />RDA belt conveyor area north of highway 12. <br />EMBANKMENT <br />1). Adequacy of the vegetative cover: Excellent Moderate`<TeeV Poor <br />2). Erosion forming Gullies: Extensive Some ew None <br />3). Is wave action causing erosion: <br />On the Upstream embankment? Yes No L-" <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? Yes <br />Could this seepage cause potential instability? <br />No j_,- <br />SEDIMENT STORAGE CAPACITY <br />1). Has the design storage capacity of the reservoir been surpassed? <br />Yes <br />Explain: <br />OTHER OBSERVATIONS: 1 oQrt Cit U <br />VY1 d GtXu-ri LO 7- - I At, lll( , <br />Lj? 2?? <br />MSHA Qualified Impoundment Inspector <br />Rate <br />No <br />act,