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QUARTERLY SEDIMENTATION POND INSPECTION REPORT <br />CDMR Rule 4.05.9(17) <br />IUine: Lorenctto <br />NPDES tD. No.: Pond ik5 <br />Inspection Period: ~ Second Quarter 2007 <br />Inspection Date: 6/27107 <br />General Descripfion or Reference to Site Plan: <br />This pond is located West of the area of mining scheduled for 2001-02. The pond <br />is,partialty i~"[reised into bedrock and the embankment keyed into bedrock. <br />,i"Siiie slopes are Tess than 2H:1 V. The primary discharges south into Cow Canyon drainage. <br />EMBANKMENT <br />~ 1). Adequacy of the vegetative cover. <br />'~ <br />2)..Erosion forming Gullies: <br />3). Is wave action causing erosion: <br />On the Upstream embankment? <br />At the principal spilMray inlet? <br />Yes <br />Yes <br />4). Erosion of the downstream tce of the embankment? Yes <br />Cause of erosion can be attributed to: <br />Poor <br />None <br />No ~ <br />No /~. <br />No ~_ <br />5). Is seepage occurring through the dam? Yes <br />Could this seepage cause potential instability? <br />No ji' <br />PRINCIPAL SPILLWAY <br />1). Is the principa! spilhvay system in 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 ocxxrrring at the discharge outlet? <br />Evaluate the severity: Extensive Moderate <br />Page 1 of 2 <br />Excellent Moderate Irewl <br />Extensive Some mew/ <br />Yes y No <br />Yes Jj No <br />Yes l~ No <br />Yes No [~' <br />Just starting None <br /> <br />