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QUARTERLY SEDIMENTATION PONb INSPECTION REPORT <br />CDMR Rule 4.05.9(17) <br />Mine: Lorencito <br />NPDES ID. No.: Pond #7 <br />Inspection Period: First Quarter 2005 <br />Inspection Date: 3/29/06 <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 sbpes are less than 2H:1 V. The primary discharges south into Jeff Canyon <br />drainage. <br />EMBANKMENT <br />1). Adequacy of the vegetative rrover. Excellent odes Few Poor <br />2). Erosion forming Gullies: Extensive Some ~ None <br />3). Is wave action causing erosion: <br /> On the Upstream embankment? Yes No v <br /> At the principal spillway inlet? Yes No ti <br />4). Erosion of the downstream toe of the embankment? Yes No :~ <br /> Cause of erosion can be attributed to: <br />5). Is seepage occurring through the dam? Yes No ~- <br /> Coutd this seepage cause potential instability? <br />PRINCIPAL SPILLWAY <br />1). Is the principal spilMray system in working orde(? <br />2). Is the inlet free of debris and restrictive materiai7 <br />3). Is the discharge outlet free of restrictive material? <br />4). Is erosion occurting at the discharge outlet? <br />Evaluate the severity: Extensive Moderate <br />Yes ~" No <br />Yes ~ No <br />Yes !~- No <br />Yes No U~ <br />Just shaming None <br />Page 1 of 2 <br />