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ANNUAL SEDIMENTATION POND INSPECTION REPORT <br />CDMR Rule 4.05.9(15) <br />Mine: New Elk <br />NPDES 10. No.: None: Containment Area RDA-N <br />Inspection Period: First Quarter 2007 <br />Inspection Date: 03!30/07 <br />General Description or Reference to Site Plan: <br />This containment area lies west of the RDA refuse conveyor and north of Hwy. 12. It is designed <br />>n contain runoff from Utis area of the RDA heft conveyor. Speaficafions are details on the <br />Containment Area RDA-PI As bwlt drawing dated 4127!93. The stage storage anus shows <br />top of embankment at 7419' with 8.0' storage for the 25-yr 24-hr. event <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 Moderate ~ Poor <br />ExLensiv~ Few None <br />Yes <br />No L~ <br />4). Erosion of the downstream toe of the embankment? Yes <br />Cause of erosion wn be atlnbuted to: <br />No <br />5). Is seepage occurring through the dam? Yes No ~- <br />Could this seepage cause poteMiai instabilrll/.~ <br />SEDIMENT STORAGE CAPACfTY <br />1). Has the design storage cepacity of the reservoir been surpassed? <br />Yes <br />Elevation Q Lop of. <br />Elevation of Water Surface: <br />Elevation to top of Sediment: <br />OTHER <br />.~r~~~~- <br />MSHA Quatfied Impoundm Inspector <br />.~30l7 <br />Date <br />No // <br />.,, _ _ <br />Tonal Eng" r Di Inspecbotr- :: _ ;`- `~~ : %, <br />__ _ _ -._ f <br />Date = - - -~- -_- <br />~' 1 - - --f _ . -- - . <br />