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QUARTERLY SEDIMENTATION POND INSPECTION REPORT <br />Mine: New Elk RDA Containment North <br />NPDES ID. No.: None <br />Inspection Period: Second Quarter 2012 <br />Inspection Date: 06/16/12 <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 Few <br />2). Erosion forming Gullies: Extensive Some Few <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 />Yes l/ No <br />OTHER OBSERVATIONS: <br />J 4 t v <br />Date <br />Explain: <br />lc- Zo rz- <br />i '-‘ <br />A Qualified Impoundment nspector <br />CDMR Rule 4.05.9(17) <br />Yes No L - <br />Yes No e_ - <br />Yes No I/ <br />J <br />