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QUARTERLY SEDIMENTATION POND INSPECTION REPORT <br />CDMR Rule 4.05.9(17) <br />Mine: Lorencito <br />NPDES tD. No.: Pond #8 <br />Inspection Period: Second Quarter 2006 <br />Inspection Date: 6/12106 <br />General Description or Reference to Ske 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 into 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 pusing erosion: <br />On the Upstream embankment? <br />At the principal spillway inlet? <br />Excellent Moderate ew Poor <br />Extensive ome Few None <br />Yes <br />Yes <br />4). Erosion of the downstream tce of the embankment? -Yes <br />Cause of erosion can be attributed to: <br />5). Is seepage occurring through the dam? Yes <br />Could this seepage cause potential instability? <br />No v <br />No !/ <br />No L <br />No V <br />PRINCIPAL SPILLWAY <br />1 }. Is the principal spitMray system in working order? <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 /~- No <br />Yes v No <br />Yes v No <br />Yes No ~ <br />Just starting None <br />Page 1 of 2 <br />