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ANNUAL SEDIMENTATION POND INSPECTION REPORT <br />CDMR Rule 4.05.9(15) <br />Mine: New EIk <br />NPDES ID. No.: None: Containment Area fKZ <br />Inspection Period: First Orrarter 2007 <br />Inspection Date: 03J30/07 <br />General Description or Reference to Site Plan: <br />This containment twin lies east of the West Portal Warehouse. Specfigtions are detailed on the <br />Containment Area Not as built drawing dated on April 26, 1993. The stage storage curve shows <br />top of embankment at 7592.0' with sediment accumulation tb 7586'. <br />1). Adequacy of the vegetative cover. <br />2). Erosion forming Gullies: <br />3). Is wave action causing erosion: <br />On the Upstream embankment? <br />Excellent ode Fehr Poor <br />Extensive Some ~ None <br />Yes <br />4). Erosion of the downstream tae of the embankment? Yes <br />Cause of erosion can be attributed m: <br />No G~ <br />No ~ <br />5). Is seepage occuning ttrrough the dam? <br />Could this seepage cause potential instability? <br />Yes No ~ <br />SEDIMENT STORAGE CAPACITY <br />i)_" Has the design storage Cap~ity of the reservoir been surpassed? <br />Yes <br />FJevation @ top of r <br />Elevation of Water Surface: <br />Elevation to top of Sediment <br />OTHER OBSERVATIONS <br />Page 1 <br />L~ <br />7 <br />~' <br />_, <br />