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QUARTERLY SEDIMENTATION POND INSPECTION REPORT <br />. CDMR Rule 4.05.9(17) <br />Mine: Lorencito <br />NPDES ID. No.: Pond #9 (North) <br />Inspection Period: Fourth Quarter 2008 <br />Inspection Date: 12/29/2008 - <br />General Description or Reference to Site Plan: <br />This pond is located north-east of 'the area of mining scheduled for 2001-02. The pond <br />is partially incised into bedrock and the embankment keyed into bedrock. Side slopes <br />are less than 2H:1d. The primary spillway discharges north into a small unnamed <br />drainage. - <br />EMBANKMENT <br />1). Adequacy of the vegetative cover. Excellent Koderate Few Poor <br /> <br />2). Erosion forming Gullies: Extensive Some ew None <br />3). Is wave action causing erosion: <br />On the Upstream embankment? Yes No <br />At the principal spillway inlet. Yes No T-- <br />4). Erosion of the downstream I oe of the embankment? Yes No f/ <br />Cause of erosion. can be attributed to: <br /> <br />5). Is seepage oc cAining through the dam? Yes No <br />Could this seepage cause potential instability?. <br /> <br /> <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). Is the discharge outlet free of restrictive material? Yes t/ No <br />4). Is erosion occurring at the discharge outlet? Yes No <br />Evaluate the severity: Extensive Moderate Just starting None <br />Page 1 of 2