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<br />Qt1ARTERLY SEDIMENTATION POND INSPECTION REPORT <br />CDMR Rule 4.05.9(17) <br />Mine: Lorencito <br />NPDES iD. No.: Pond #7 <br />Inspection Period: Second Quarter 2007 <br />Inspection Date: 6/27/07 <br />General Description or Refen:nce to Site Plan: <br />This pond is located south of the area of mining scheduled for 2001-02. The pond <br />is partraly 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. Excellent oderat Few Poor <br />2). Erosion forming Gullies: Extensive Some ~ None . <br />3). Is wave action causing erosion: <br />On the Upstream embankment? Yes ' No i/ <br />At the principal spithvay inlet? Yes No ~--- <br />4). Erosion of the downstream tce of the embankment? Yes No i.-- <br />Cause of erosion pn be attributed to: <br />5). Is seepage occurring through the dam? Yes No v <br />Could this seepage cause potential instabifity.~ <br />PRINCIPAL SPILLWAY <br />1). Is the principal spillway system to working order? <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 occuning at the discharge outlet? <br />Evaluate the severity: Extensive Moderate <br />Yes ~ No <br />Yes /~ No <br />Yes ~- No <br />Yes No ~~ <br />Just starling None <br />Page 1 of 2 <br />