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QUARTERLY SEDIMENTATION POND INSPECTION REPORT <br />CDMR Rule 4.05.9(17) <br />Mine: Lorencito <br />NPDES ID. No.: Pond ff9 <br />Inspection Period: First Quarter 2005 <br />Inspection Date: 3!29/2006 <br />General Description or Reference to Sete Plan: <br />This pond is located northeast of the area of mining scheduled for 2001-02. The pond <br />is partially incised into bedrock and the embankment keyed into bedrock. Side slopes <br />are less than 2H:1 V. The primary spillway discharges north into a small unnamed <br />drainage. <br />EMBANKMENT <br /> <br />1). Adequacy of the vegetative cover. Excellent Moderate ~ Poor <br />2). Erosion forming Gullies: Extensive Some /F~w1 None <br />~~~ <br />3). Is wave action causing erosion: <br /> On the Upstream embankment? Yes No ~ <br /> At the principal spilhvay inlet? Yes No L-- <br />4). Erosion of the downstream toe of the embankment? Yes No ,.~ <br /> Cause of erosion can be attributed to: <br /> <br /> <br />5). Is seepage occurring through the dam? Yes No (/ <br /> Could this seepage cause potential instability'? <br /> <br /> <br />PRINGPAL SPILLWAY <br />1). Is the principal spilhpay system in working orde(? Yes dam- No <br />2). !s the inlet free of debris and restrictive material? Yes ~ No <br />3). Is the discharge outlet free of restrictive material? Yes ~- No <br />4). Is erosion occurring at the discharge outlet? Yes No ~' <br /> Evaluate the severity: Extensve Moderate Just starting None <br />Page 1 of 2 <br />