Laserfiche WebLink
ANNUAL SEDIMENTATION POND INSPECTION REPORT <br />CDMR Rule 4.05.9(15) <br />Mine: Lorencito <br />NPDES ID. No.:' Pond #6 <br />Inspection Period: Fourth Quarter 2009 <br />Inspection Date: 11/2812009 <br />General Description or Reference to Site Plan: <br />This pond is located South of the area of mining during,for 2002. The pond _ <br />is partially incised into bedrock and the embankment keyed into bedrock. <br />Side slopes are less than 21-1: IV. The primary discharges south into Jeff Canyon drainage. <br />EMBANKMENT <br />1). Adequacy of the vegetative cover. Excellent oderat Few Poor <br />2). Erosion forming Gullies: Extensive Some ew- None <br />3). Is wave action causing erosion: <br />On the Upstream embankment? <br />At.. the principal spillway inlet? <br />4). Erosion of the downstream toe of the embankment? <br />Cause of erosion can be attributed to: <br />Yes No J? <br />Yes No <br />Yes No <br />5). Is seepage occurring through the dam? Yes No <br />Could this seepage cause potential instability? <br />PRINCIPAL SPILLWAY <br />1). Is the principal spillway system in working order? <br />2). Is the inlet free of debris and restrictive material? <br />3). Is the discharge outlet free of restrictive material? <br />4). Is erosion occurring at the discharge outlet? <br />Evaluate the seventy: Extensive Moderate <br />Yes <br />Yes No <br /> <br />No <br />Yes No <br />Yes No ... <br />Just starting None <br />Page 1