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QUARTERLY SEDIMENTATION POND INSPECTION REPORT <br />CDMR Rule 4.05.6(13) <br />Mine: Southfield <br />NPDES ID. No.: Pond #3 (Water Storage) <br />Inspection Period: 4-qtr 2000 <br />Inspection Date: 10-Nov-00 <br />General Description or Reference to Site Plan: <br />This pond is located west of the main facilities area and adjacent to the refuse disposal area. <br />The pond is partially incised with approximately 3:1 interior and exterior side slopes. The pond <br />interior is hypalon lined and the perimeter is fenced. Water level is manually controlled by the <br />operator. <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 />Yes <br />Yes <br />4). Erosion of the downstream toe of the embankment? Yes <br />Cause of erosion can be attributed to: <br />Excellent oderate Few Poor <br />Extensive Some ew None <br />No <br />No ); <br />No I( <br />5). Is seepage occurring through the dam? Yes <br />Could this seepage cause potential instability? <br />No <br />PRINCIPAL SPILLWAY <br />1). Is tie 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 />4j. Is erosion occurring at the discharge outlet? <br />Evaluate the severity: Extensive Moderate <br />Page 1 of 2 <br />Yes~_ No <br />Yeses No <br />Yes Jl/)4Q No <br />Yes ~~~ Nom <br />Just starting None <br />