Laserfiche WebLink
ANNUAL SEDIMENTATION POND INSPECTION REPORT <br />CDMR Rule 4.05.9(15) <br />Mine: New Elk <br />NPDES ID. No.: None: Containment Area RDA-SW <br />Inspection Period: Fourth Quarter 2004 <br />Inspection Date: 11/26/04 <br />General Description or Reference to Site Plan: <br />This containment area lies west of the RDA refuse conveyor and south of Hwy. 12. It is designed <br />to contain run-off from this area of the RDA belt conveyor. Specifications are detailed on the <br />Containment Area RDA-SE As built drawing dated 4/24/93' The stage storage curve shows <br />top of embankment at 7415' with sediment accumulation to 7413.5'. <br />'EMBANKMENT <br />1). Adequacy of the vegetative cover: Excellent Moderate Few Poor <br />2). Erosion forming Gullies: Extensive ome Few None <br />3). Is wave action causing erosion: <br />On the Upstream embankment? Yes No t~ <br />4). Erosion of the downstream toe of the embankment? Yes No ~ <br />Cause of erosion can be attributed to: <br />5). Is seepage occurring through the dam? Yes No ~ <br />Could this'~epage cause potential instability? <br />SEDIMENT STORAGE CAPACITY <br />1). Has the design storage capacity of the reservoir been surpassed? <br />Yes No~ <br />Elevation @ top of: E,,, b a ~ I~wreu~ ~ 75'/.S <br />Elevation of Water Surface: (~~Qt( <br />Elevation to top of Sediment: ~ - S. f ~ 7y0 j, ~j <br />OTHER OBSERVATIONS ~ <br />Ponc2 Was of/mil w[~ Bartle sno~/ oiccicvNU.~Gf'fe,.r . <br />~r •;:4 <br />~ C ~~ L =' I:- i'" <br />MSHA Qualified Impoundment Spector ~ Profb`ssional Engineer irectidg Inspeetio.' ',~,, , <br />Date . ' Date ~~ '~` <br />:.,,~,. <br />Page 1 <br />