Laserfiche WebLink
QUARTERLY SEDIMENTATION POND INSPECTION REPORT <br />CDMR Rule 4.05.9(17) <br />Mine: Lorencito <br />NPDES ID. No.: Pond #9A.(South) <br />Inspection Period: Fourth Quarter 2008 <br />Inspection Date: 12129108 <br />General Description or Reference to Site Plan: <br />This pond is located south-east of the area of mining scheduled for 2001-02_ The pond <br />is partially, incised into bedrock and the embankment keyed Into bedrock. Side slopes <br />are less than 2H:1V, The primary spiliway.discharges south into Jeff Canyon. <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 />At the principal sprdiway inW7 <br />Excellent ode Few Poor <br />Extensive Some None <br />Yes No <br />Yes No <br />4). Erosion of the downstream floe of the embankment? <br />Cause of erosion can be attributed to: <br />Yes No 4---- <br />5). Is seepage occurring through the dam? Yes No !l <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 ftee 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 severity: Extensive Moderate <br />Yes <br />Yes I"' <br />Yes t/ <br />No <br />No <br />No <br />Yes No <br />Just starting None