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<br /> <br />ANNUAL SEDIMENTATION POND INSPECTION REPORT <br />CDMR Rule 4.05.9(15) <br />Mine: Lorencito <br />NPDES ID. No.: Pond #6 <br />Inspection Period: Second Quarter 2004 <br />Inspection Date: 6/10/2004 <br />General Description or Reference to Site Plan: <br />This pond is located South 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:1 V. The primary discharges south into Jeff Canyon drainage. <br />EMBANKINENT <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 />Yes <br />Yes <br />4). Erosion of the downstream toe of the embankment? Yes <br />Cause of erosion can be attributed to: <br />No y <br />No ~/ <br />No y <br />5). Is seepage occurring through the dam? Yes <br />Could this seepage cause 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 of restrictive material? <br />4). Is erosion occurring at the discharge outlet? <br />Evaluate the severity: Extensive Moderate <br />Excellent oderat Few Poor <br />Extensive Some ew None <br />Yes_~~ No <br />Yes ~~ No <br />Yes ~ _ No <br />Yes No ~~ <br />Just starting None <br />Page 6 <br />