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ANNUAL SEDIMENTATION POND INSPECTION REPORT <br />CDMR Rule 4.05.9(15) <br />Mine: Lorencito <br />NPDES ID. No.: Pond #7 <br />Inspection Period: - Fourth Quarter 2009 <br />Inspection Date: .11128/2009 <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. Excellent Modem Few Poor <br />2). Erosion forming Gullies: Extensive Some . Fe None <br />3). Is wave action causing erosion: - <br />On the Upstream embankment? Yes No ?! <br />At the principal spillway inlet? Yes NO <br />4). Erosion of the downstream toe of the embankment? Yes No y <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? <br />Yes fl- <br />No <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 occurring at the discharge-outlet- <br />Evaluate the severity: Extensive Moderate <br />Yes A - <br />No <br />Yes v . No <br />Yes No L,- <br />Just starting None <br />Page 1