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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 2004 <br />` Inspection Date: 11/26/04 <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 />Excellent odera Few Poor <br />Extensive Some F w None <br />4). Erosion of the downstream toe of the embankment? <br />Cause of erosion can be attributed to: <br />Yes <br />Yes <br />No // <br />No (~ <br />5). Is seepage occurring through the dam? Yes <br />Could this~epage cause potential instability? <br />No (i <br />SEDIMENT STORAGE CAPACITY <br />1). Has the design storage capacity of the reservoir been surpassed? <br />I~I~~ -y- Yes No ~ <br />Elevation @ top of: Cun vJa.n(»72ct.4 _ 73'9'Z• v <br />Elevation of Water Surtace: ~ <br />Elevation to top of Sediment: - ,,5 ' • . 7,S <br />OTHER OBSERVATIONS <br />,~~~., ,. <br />~~~Gr~r~ ~; . <br />f~v SHA Qualified Impou dment Inspector Pro essional Engineer Directing Inspe ron <br />l r = `z6~o y sir /vim <br />Date '^ Date <br />Page 1 <br />