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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: First Quarter 2008 <br />Inspection Date: 412!2008 <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 partially incised into alluvium and the embankment keyed into the - <br />subsurface strata. Side sopes are less than 2H:1V.,. The pond discharges into Lorencito <br />Canyon Creek. <br />EMBANKMENT <br />1). Adequacy of the vegetative cover. Excellent ode Few `Poor <br />2). Erosion-forming Gullies: Extensive Some /few None <br />3). Is wave action causing erosion: <br />On the Upstream embankment? Yes No c/ <br />At the principal spilhmay- inlet? Yes No <br />4). Erosion of the downstream toe of the embankment? Yes No y <br />Cause of erosion can be attributed to: <br />5). Is seepage occurring through the dam? Yes No c.- <br />Could this seepage cause potential instability? <br />PRINCIPAL SPILLWAY <br />1). Is the principal spillway system in working order? - Yes A./ No <br />Z)_ _ Is,the inlet fns of debris and restrictive material? Yes r No <br />3). kse discharge outlet free of restrictive material? Yes v No <br />4). Is?pgrM T occurring at the discharge outlet? Yes No <br />Evala-itePe severity. Extensive Moderate Just starting None <br />Page 1