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I • <br /> <br />QUARTERLY SEDIMENTATION POND INSPECTION REPORT <br />CDMR Rule 4.05.6{13) <br />Mine: Lorencito <br />NPDES ID. No.: Pond #8 <br />Inspection Period: 1st Quarter <br />Inspection Date: 23-Feb-02 <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 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 causing erosion: <br />On the Upstream embankment? <br />At the principal spillway inlet? <br />Excellent Moderate Few <br />Extensive Some Few <br />Yes <br />Yes <br />4}. Erosion of the downstream toe of the embankment? Yes <br />Cause of erosion can be attributed to: <br />2~ <br />~n ~1 <br />No v~ <br />No j~- <br />No v' <br />5). Is seepage occurring through the dam? Yes <br />Could this seepage cause potential instability? <br />No r/ <br /> <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 of restrictive material? <br />4). Is erosion occurring at the discharge outlet? <br />Evaluate the severity: Extensive Moderate <br />Page 1 of 2 <br />Yes i/ No <br />Yes ~ No <br />Yes Lam- No <br />Yes No J <br />Just starting None <br />