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ANNUAL SEDIMENTATION POND INSPECTION REPORT <br />CDMR Rule 4.05.9(15) <br />Mine: Lorencito <br />NPDES ID. No.: Pond #5 <br />Inspection Period: Fourth Quarter 2010 <br />Inspection Date: 12/3/2010 <br />General Description or Reference to Site Plan: <br />This pond is located north-east 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:1V. The primary spillway discharges north into a small unnamed <br />drainage. <br />EMBANKMENT <br />1). Adequacy of the vegetative cover: (_?x-celle)n Moderate Few Poor <br />2). Erosion forming Gullies: Extensive Some ew None <br />3). Is wave action causing erosion: <br />On the Upstream embankment? Yes <br />At the principal spillway inlet? 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 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 free of debris and restrictive material? <br />3). Is the discharge outlet free of restrictive material? <br />4). to erosion occurring at the discharge outlet? <br />EVpluate the severity: Extensive Moderate <br />No L-- <br />No li <br />No <br />Yes z1_ <br />Yes i/ <br />Yes <br />Yes <br />Just starting None <br />No <br />No <br />No <br />No ?--' <br />Page 1