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ANNUAL SEDIMENTATION POND INSPECTION REPORT <br />CDMR Rule 4.05.9(15) <br />Mine: Lorencito <br />NPDES ID. No.: Pond #10A-Loadout <br />Inspection Period: Third Quarter 2005 <br />Inspection Date: y ~ ~ G 5 <br />General Description or Reference to Site Plan_ <br />This pond is located east of the coal loadout facility and south of the railroad tracks <br />The pond is partialty incised into alluvium and the embankment keyed into the <br />subsurface strata. Side sopes are less Phan 2H:'IV. The pond discharges into Lon:ncito <br />Canyon Creek. <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 Moderate Few Poor <br />Extensive Some ~ None <br />4). Erosion of the downstream tce of the embankment? Yes <br />Cause of erosion can be attributed to: <br />5}. Is seepage occurting through the dam? Yes <br />Could this seepage cause potential instabilityt <br />Yes <br />Yes <br />No ~' <br />No l~ <br />NO (< <br />No i~ <br />PRINCIPAL SPILLWAY <br />1), is the principal spilhvay system in working orc1eR <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. F~ctensive Moderate <br />Yes Ci <br />Yes ~ <br />Yes ,~ <br />Yes <br />Just starting <br />Na <br />No <br />No <br />No %j <br />None <br />Page 1 <br />