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~, <br />ANNUAL SEDIMENTATION POND INSPECTION REPORT <br />CDMR Rule 4.05.9(15) <br />Mine: Lorencito <br />NPDES ID. No.: <br />Inspection Period: <br />Inspection Date: <br />#8 <br />First Quarter 2003 <br />3/31 /03 <br />General Description or Reference to Site Plan: <br />This pond is located north of the area of mining during for 2002. The pond <br />is partially incised into bedrock and the embankment keyed into bedrock. <br />Side slopes are less than 2H:1V. The primary discharges north into a small drainage. <br />EMBANKMENT <br />1). Adequacy of the vegetative cover: Excellent Moderate Few Poor <br />2). Erosion forming Gullies: Extensive Some ew None <br />3). Is wave action causing erosion: <br />On the Upstream embankment? Yes <br />At the principal spillway inlet? Yes <br />4). Erosion of the downstream toe 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 L/ <br />No / <br />No i/ <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 />Yes r~ <br />Yes // <br />Yes ,:/~ <br />Yes <br />Just starting <br />No , ~ <br />~1 <br />No <br />No <br />No r/ <br />None <br />Page 4 <br />