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QUARTERLY SEDIMENTATION POND INSPECTION REPORT <br />CDMR Rule 4.05.9(17) <br />Mine: Lorencito <br />NPOES 1D. No.: Pond #8 <br />Inspection Period: Third Quarter 2007 <br />Inspection Date: 9/21/07 <br />General Description or Reference to Site Plan: <br />This pond is located north of the area of mining scheduled for 2001-02. The pond <br />is partially incised infix bedrock and the. embankment keyed into bedrock. <br />Side slopes are less than 2H:1V. The primary discharges north into a small drainage. <br />EMBANKMENT <br />1). Adequacy of the vegetative cover. <br />2). Erosion forming Gullies: <br />3). Is wave action causing erosion: <br />Excellent Moderate ~e~=> Poor <br />Extensive &ome~, Few None <br />~_ ~ <br />On the Upstream embankment? Yes No - f--° <br />At the principal spillway inlet? Yes No v <br />4). Erosion of the downstream toe of the embankment? Yes No ~.. <br />Cause of en~.sion can be attributed to: <br />5). Is seepage occurring through the dam? Yes No ~ ~ <br />Could this seepage cause potential instability? <br />PRINCIPAL SPILLWAY <br />1). Is the prinapal spillway system in working order? <br />2). Is the inlet free of debris and n~trictive material? <br />3). Is the discharge outlet free of restrictive material? <br />4). Is erosion oax~rring at the discharge outlet? <br />Evaluate the severity. Extensive Moderate <br />Yes r, No <br />Yes :~- No <br />Yes ~-- No <br />Yes No t/" <br />Just starting None <br />Page 1 of 2 - <br />