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QUARTERLY SEDIMENTATION POND INSPECTION REPORT <br />CDMR Rule 4.05.9(17) <br />Mine: Lorencito <br />NPDES 1D. No.: Pond #8 <br />Inspection Period: Second Quarter 2007 <br />Inspection Date: 6YL7/07 <br />General Description or Reference to Site Plan: <br />This pond is located north of the area of mining scheduled for 2001-02. The pond <br />is partially incised into bedrock and the embankment keyed info bedrock. <br />Side slopes are less than 2H:1 V. The primary discharges north into a small drainage. <br />EMBANKMENT <br />1). Adequacy of the vegetative cover. <br />2). Erosion forming Gullies: <br />3). Is wave action posing erosion: <br />On the Upstream embankment? <br />At the principal spillway inlet? <br />Yes <br />Yes <br />4). Erosion of the downstream tce of the embankment? Yes <br />Cause of erosion can be attributed to: <br />Poor <br />None <br />No ~~ <br />No ~~ <br />No L~- <br />5). Is seepage ocarrting through the dam? Yes <br />Could this seepage pose potential instability/? <br />No ~~ <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 bf restrictive ma6er~1? <br />4). Is erosion occurring at the discharge outlet? <br />Evaluate the severity: Extensive Moderate <br />Excellent Moderate /rew/ <br />Extensive me Few/ew <br />Yes Y No <br />Yes !~ No <br />Yes ~ No <br />Yes No L/ <br />Just starting None <br />Page 1 of 2 <br />