Laserfiche WebLink
ANNUAL SEDIMENTATION POND INSPECTION REPORT <br />CDMR Rule 4.05.9(15) <br />Mine: Lorencito <br />NPDES ID. No.: <br />Inspection Period: <br />Inspection Date: <br />Pond #7 <br />Third Quarter 2005 <br />9 aS <br />General Description or Reference to Site Plan: <br />This pond is located south of the area of mining during for 2001-02. The pond <br />is partially incised into bedrock and the embankment keyed into bedrock. <br />Side slopes are less than 2H:1 V. The primary discharges south into Jeff Canyon <br />drainage. <br />EMBANKMENT <br />1). Adequacy of the vegetative cover. <br />2). Erosion forming Gullies: <br />3). Is wave action pusing erosion: <br />On the Upstream embankment? <br />At the principal spillway inlet? <br />No y <br />No v <br />4). Erosion of the downstream tce of the embankment? Yes <br />Cause of erosion can be attributed to: <br />No ~ <br />Yes <br />Yes <br />5). Is seepage occurring through the dam? <br />Could this seepage cause potential instability? <br />Yes No t~ <br />PRINCIPAL SPILLWAY <br />1). Is the principal spillway system in working osier? <br />2). Is the inlet free of debris and restrictive material? <br />3). Is the discharge outlet free of riesstrictive material? <br />4). Is erosion occurring at fhe discharge outlet? <br />Evaluate the severity: Extensive Moderate <br />Excellent oderate Few Poor <br />Extensive Some Few None <br />Yes ~ No <br />Yes t~ No <br />Yes 1/ No <br />Yes No -/ <br />Just shading None <br />