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<br />QUARTERLY SEDIMENTATION POND INSPECTION REPORT <br />CDMR Rule 4.05.9(17) <br />Mine: Lorencito <br />NPDES ID. No-: <br />Inspection Period: <br />Inspection Date: <br />Pond rY6 <br />Second Quarter 2007 <br />6/27/07 <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 discharges south into Jeff Canyon drainage. <br />EMBANKMENT <br />1). Adequacy of the vegetative cover. Excellent Mode Few Poor <br />2). Erosion forming Gullies: Extensive Some Few 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 i, <br />Cause of erosion can be attributed to: <br />5). Is seepage oaxming through the dam? <br />Could this seepage cause potential instability? Yes No !/ <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 ~-- No <br />4). Is erosion occurring at the discharge trutlei7 Yes No G~ <br /> Evaluate the severity: Extensive Moderate Just starting None <br />Page 1 of 2 <br />