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ANNUAL SEDIMENTATION POND INSPECTION REPORT <br />CDMR Rule 4.05.9(l 5) <br />Mine: Lorencito <br />NPDES ID. No.: Pond #7 <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 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 2HAV. The primary discharges south into Jeff Canyon <br />drainage. <br />EMBANKMENT <br />1). Adequacy of the vegetative cover: Excellent der a Few Poor <br />2). Erosion forming Gullies: Extensive Some &None <br />3). Is wave action causing erosion: <br />On the Upstream embankment? Yes No <br />At the principal spillway inlet? Yes No fs-? <br />4). Erosion of the downstream toe of the embankment? Yes No <br />Cause of erosion can be attributed to: <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? Yes No <br />2). Is the inlet free of debris and restrictive material? Yes No <br />3). 4s tho `discharge outlet free of restrictive material? Yes No <br />4).. Is erostonoccurring at the discharge outlet? Yes No <br /> Evaiuat6 the severity: Extensive Moderate Just.-starting ' None <br />Page 1