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QUARTERLY SEDIMENTATION POND INSPECTION REPORT <br />Mine: New Elk RDA Containment North <br />NPDES ID. No.: None <br />Inspection Period: Fourth Quarter 2011 <br />Inspection Date: 12/29/11 <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 Poor <br />2). Erosion forming Gullies: <br />3). Is wave action causing erosion: <br />On the Upstream embankment? <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 />SEDIMENT STORAGE CAPACITY <br />1). Has the design storage capacity of the reservoir been surpassed? <br />Explain: vn/ (S C a <br />1/ <br />OTHER OBSERVATIONS: <br />SHA Qualified Impoundme Inspector <br />— f (— < 20/ c1, ' <br />Date <br />CDMR Rule 4.05.9(17) <br />Yes <br />Yes <br />Extensive Some Cy None <br />Yes No '- ' <br />Yes No <br />ccw - L c trl u Of <br />ct / v rn <br />C z-r-d <br />E�Y1 4i <br />No <br />Ci <br />No v <br />