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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 (V1/ater Storage) <br />Inspection Period: 1st-Qtr., 2002 <br />Inspection Date: January 28, 20002 <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 />Excellent dera Few Poor <br />Extensive Some ~ None <br />Yes <br />Yes <br />4). Erosion of the downstream tae 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 /> <br />No ~- <br />No ~_ <br />No Lv <br />No c..~ <br />PRINCIPAL SPILLWAY (Not Applicable-Designed for no discharge). <br />1). Is the principal spillway system in working order? Yes NIA No <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 N!A <br />Yes N!A <br />Yes N/A <br />Just starting None <br />No <br />No <br />No <br />Page 1 of 2 <br />