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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 #2 <br />Inspection Period: Fourth Quarter 2005 <br />Inspection Date: 1228/05 <br />General Description or Reference to Site Plan: <br />This containment basin lies east of the West Portal Warehouse. Specifications are detailed on the <br />Containment Area No.2 as built drawing dated on April 26, 1993. The stage storage curve shows <br />top of embankment at 7592.0' with sediment accumulation to 7586'. <br />EMBANKMENT <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 />Excellen oderate ew Poor <br />Extensive Some ew None <br />Yes <br />No ~~ <br />4). Erosion of the downstream toe of the embankment? Yes <br />Cause of erosion can be attributed to: <br />No ~ <br />5). Is seepage occurring through the dam? Yes <br />Coutd this seepage cause potential instabilityt <br />No ~/ <br />SEDIMENT STORAGE CAPACITY <br />1). Has the design storage gpacity of the reservoir been surpassed? <br />Yes <br />Elevation (c~ top of: ~' <br />Elevation of Water Surface: <br />Elevation to top of Sediment <br />e z f z8 /os <br />Date <br />No y <br />• <br />~ <br />` <br />Date <br />~ ' N <br />. <br />•, n <br />; <br />~a, _. •~ <br />'.G ).~. u. ~e <br />? ~ a _~d <br />. <br />~ <br />' <br />Page 1 r, <br />. <br /> <br /> <br />