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QUARTERLY SEDIMENTATION POND INSPECTION REPORT <br />CDMR Rule 4.05.9(17) <br />Mine: Lorencito <br />NPDES ID. No.: <br />Inspection Period: <br />Inspection Date: <br />Pond #7 <br />2nd Quarter 2003 <br />6/30/03 <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 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 <br />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 Moderal ew Poor <br />Extensive Some Fe None <br />4). Erosion of the downstream toe of the embankment? <br />Cause of erosion can be attributed to: <br />5). Is seepage occurring through the dam? <br />PRINCIPAL SPILLWAY <br />1). Is the principal spillway system in working order? <br />2). Is the inlet free of debris and resirictive 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 No ~- <br />Yes No ; <br />Yes No G/ <br />Yes ~-- No <br />Yes L No <br />Yes ~ No <br />Yes No iv- <br />Just starting None <br />Page 1 of 2 <br />