Laserfiche WebLink
QUARTERLY SEDIMENTATION POND INSPECTION REPORT <br />CDMR Rule 4.05:9(17) <br />Mine: Lorencito <br />NPDES ID. No.: <br />Inspection Period: <br />Inspection Date: <br />Pond #8 . <br />Second Quarter 2009 <br />718109 <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 into 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. Excellent odera Few Poor <br />2). Erosion forming Gullies: Extensive Some ' ew None <br />3). Is wave action causing erosion: <br />On the Upstream embankment? Yes <br />At the principal spillway inlet? Yes <br />4). Erosion of the downstream toe of the embankment? <br />Cause of erosion can be attributed to: <br />Yes <br />5). Is seepage occurring through the dam? Yes No <br />Could this seepage cause potential instability? <br />PRINCIPAL SPILLWAY <br />1). Is the principal spillway 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 occurring at the discharge outlet? <br />Evaluate the severity: Extensive Moderate <br />Yes <br />Yes <br />Yes _4,'--_ <br />No F/ <br />No v' <br />. No !./ <br />No <br />No <br />No <br />No Gas' <br />Yes <br />Just starting None <br />Page 1 of 2