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QUARTERLY SEDIMENTATION POND INSPECTION REPORT <br />CDMR Rule 4.05.9(17) <br />Mine: Lorencito <br />NPDES ID. No.: Pond #7 <br />Inspection Period: Third Quarter 2005 <br />inspection Date: 12/30/05 <br />General Description or Reference to Site Plan: <br />This pond is located south of the area of mining scheduled for 2001-02. The pond <br />is partialty incised into bedrock and the embankment keyed into bedrock. <br />Side slopes are less than 2H:1 V. The primary dischartJes 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 causing erosion: <br />On the Upstream embankment? <br />At tfie principal spillway inlet? <br />Excellent odere Few Poor <br />Extensive Some ew None <br />Yes <br />Yes <br />4). Erosion of the downstream toe of the embankment? Yes <br />Cause of erosion can be attributed to: <br />5). Is seepage occurring Mrough the dam? Yes <br />Could this seepage cause potential instability? <br />No !.~ <br />No /.~ <br />No V- <br />No L~- <br />PRINCIPAL SPILLWAY <br />1). Is the principal spiNaray 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 occuning at the discharge outset? <br />Evaluate the severity: Extensive Moderate <br />Yes !~ No <br />Yes /i- No <br />Yes V~ No <br />Yes No z/~ <br />Just starting None <br />Page 1 of 2 <br />