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.x ~ _ .. _. -. '. <br />45 ~ .t <br />. ~~~ ', <br />~~ ~ <br />QUARTERLY SEDIMENTATION POND INSPECTION REPORT ' `~'~' -' =~''°'''~' <br />' ` CDMR Rule'4.05.9(1 ~ ~ ~ ' <br />Mine: Lorencito <br />NPDES ID. No.: Pond #7 <br />Inspection Period: 4`" Quarter 2002 _ <br />Inspection Date: ~ 12/26/02 <br />General Description or Reference to Site Plan: <br />This pond is located south of the area of mining scheduled for 2001-02. The pond <br />is partially incised into bedrock and the embankment keyed into bedrock. <br />Side slopes are less than 2H:1 V. The primary discharges south into Jeff Canyon <br />drainage. <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 ew None <br />4). Erosion of the downstream toe of the embankment? <br />Cause of erosion can be attributed to: <br />Yes No L <br />Yes No r. <br />Yes No v <br />5). Is seepage occurring through the dam? Yes No ~~ <br />Could this seep^age cause p tential i//n~~st~a/b~ility? <br />A- L:GG ¢X ...ie Oe~r~!~.. .,T//.r iin Pni~in~ i if~>I'- ~' nvJr• ~i <br />PRINCIPAL SPILLWAY <br />1). Is the principal spillway system in working ordeR Yes Ir No <br />2). Is the inlet free of debris and restrictive material? Yes •~ No <br />3). Is the discharge outlet free of restrictive material? Yes y- No <br />4). Is erosion occurring at the discharge outlet? Yes No t/ <br /> Evaluate the severity: Extensive Moderate Just starting None <br />Page 1 of 2 <br />