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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 #1 <br />Inspection Period: Fourth Quarter 2012 <br />Inspection Date: 12/20/12 <br />General Description or Reference to Site Plan: <br />This containment basin lies east of the West Portal Manway. Specifications are detailed on the <br />Containment Area No.1 as built drawing certified on May 7, 1993. The stage storage curve shows <br />top of embankment at 7537.0' with sediment accumulation to 7529'. <br />EMBANKMENT <br />1). Adequacy of the vegetative cover: Excellent. Moderate Few Poor <br />2). Erosion forming Gullies: Extensive Some ew None <br />3). Is wave action causing erosion: <br />Yes <br />On the Upstream embankment? <br />4). Erosion of the downstream toe of the embankment' Yes <br />Cause of erosion can be attributed to: <br />5). Is seepage occurring through the dam? Yes No // <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 No r/ <br />x`7. <br />Elevation @ top of: 0,,„1,..„, kpfl Y± <br />Elevation of Water Surface: <br />Elevation to top of Sediment: <br />OTHER OBSERVATIONS <br />__ <br />0.l iy / E�. l £C/' <br />\M #L{ <br />MSHA Qualified Impoundment Inspector <br />Date <br />(9. o/.70/ <br />e641 <br />Oy k <br />Page 1 <br />I <br />//././ <br />- %fe sion.l En•me <br />Date <br />No <br />1� <br />No 1 -- <br />,fri--/acy9 <br />