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QUARTERLY SEDIMENTATION POND INSPECTION REPORT <br />CDMR Rule 4.05.9(17) <br />Mine: Lorencito <br />NPDES ID. No.: Pond #10A-Loadout <br />Inspection Period: Third Quarter 2005 <br />Inspection Date: 12/30/05 <br />General Description or Reference to Site Plan: <br />This pond is located east of the coal foadout 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 copes are less than 2Ft:1 V. The pond discharges into Lorencito <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 />Yes <br />Yes <br />4). Erosion of the downstream toe 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 instabilit!/? <br />Poor <br />None <br />No y <br />No r. <br />No ~ <br />No li <br />PRINCIPAL SPILLWAY <br />1). Is the principal spillway system in vrorking ordefi' <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 occurting at the discharge outlet? <br />Evaluate the severity: Extensive Moderate <br />Excellent Moderate c= --- ~ <br />Extensive Some <br />Yes ~/ No <br />Yes v' No <br />Yes / No <br />Yes No <br />Just starting None <br />!~' <br />Page 1 of 2 <br />