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QUARTERLY SEDIMENTATION POND INSPECTION REPORT <br />CDMR Rule 4.05.9(17) <br />Mine: Lorencito <br />NPDES ID. No.: Pond #9 [j (Nov2Y"In <br />Inspection Period: 3itl Quarter 2004 <br />Inspection Date: 9/30/2004 <br />General Description or Reference to Site Plan: <br />This pond is located north-east of the area of mining scheduled for 2001-02. The pond <br />is partially incised info bedrock and the embankment keyed into bedrock. <br />_ Side slopes are less than 2H:1V. The primary spillway discharges nodh into a small unnamed <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 Upstroam embankment? <br />At the principal spillway inlet? <br />Excellent Moderate ~ Poor <br />Exlonsive Some Few None <br />Yes <br />Yes <br />4). Erosion of the downstream toe of the embankment? <br />Cause of erosion can be attribut d lo: <br />v-•-.~ o vv~P,r wi w tee. e nc~~~ d,:ti iZ <br />5). Is seepage occurring through the dam? <br />Could this seepage cause potential instability? <br />No r~ <br />No / <br />Yes r,/ No <br />Yes <br />No -(~.__ <br />PRINCIPAL SPILLWAY <br />1). Is the principal spillway system in working order? Yes J/ 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 ]j No <br />4). Is erosion occurring at the discharge outlet? Yes No l~ <br /> Evaluate the severity: Extensive oderat Jut starliny None <br /> ,() ", h,.y~ Gxi <br /> <br />Page 1 of 2 <br />