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UIXBOW I IF Aft <br />FIRST QUARTER 2010 POND INSPECTION REPORT <br />Pond Inspection Date: March 16, 2010 <br />Miscellaneous Comments: <br />1. Ponds have remnants of ice and snow on N. slopes and shaded bottoms. Winter/spring conditions <br />prevail. <br />2. The SWMP control devices were inspected and all SWMP control devices were found to be in fair <br />condition. Performed further routine SWMP maintenance during the quarter on Elk Creek mine and <br />facility roads. Sumps in front of straw bales will be cleaned, straw bales replaced, straw wattles installed, <br />as part of spring maintenance. <br />3. Outfall 011 - Outfall 011 formerly served as a mine water pond for the Sanborn Creek Mine. The <br />pond does not collect surface drainage. With closure of the Sanborn Creek Mine, the incised pond <br />associated with Outfall 011 serves no further hydrologic function. The pond currently provides an <br />ongoing location to place ditch cleaning materials from adjacent ditches. Outfall 011 has been removed <br />from CDPS Discharge Permit CO-0000132. <br />4. Sediment and Water Level Determination - When sediment enters a pond, it is deposited unevenly, <br />usually collecting at the inlets rather than evenly across the bottom of the pond. Reported sediment levels <br />are based upon the inspector's observations made throughout the quarter during routine inspections in <br />combination with knowledge of the pond structure. The reported pond water level is also determined by <br />observations relative to the various landmarks in the pond (depth to bottom, primary riser, etc.) <br />Notwithstanding comments above, ponds have been maintained as designed and in accordance with the <br />approved plan. <br />Inspected By: I? <br />James A. Kiger <br />Under Direction of <br />3737 Hwy 133 • P.O, Box 535 - Sornerset, Colorado 81434 USA <br />rH (970) 929-5122 1 FAX (970) 929-5177