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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: Second Quarter 2016 <br />Inspection Date: 06/20/16 <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: xcellen Moderate Few Poor <br />2). Erosion forming Gullies: Extensive Some Fe None <br />3). Is wave action causing erosion: <br />On the Upstream embankment? Yes <br />4). Erosion of the downstream toe of the embankment' <br />Cause of erosion can be attributed to: <br />Yes <br />N o rs <br />No (,.- <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? No t� <br />Yes <br />Elevation @ top of: L <br />Elevation of Water Surface <br />Elevation to top of Sediment: S'3S <br />OTHER OBSERVATIONS <br />'O"A. I <br />'. <br />4SA=Qualified Impoundm t Inspector ofessional E in er Directing Insp <br />Date <br />Date - <br />" - <br />Page 1- <br />•1Y`fiCsmai...a<•aa <br />