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XBOW o1/I/N/NG.LLC <br />f <br />~~ <br />FOURTH QUARTER 2007 POND INSPECTION REPORT <br />Pond Inspection Date: December 18, 2007 <br />Miscellaneous Comments: <br />1. 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 were cleaned, etc. Some straw bales replaced. <br />2. Outfall O11 - 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 />3. Outfa11009 - (A Pond) had approximately 30 cy of sediment removed during the quarter. <br />4. Outfa11010 -East Yard pond. Fina1300 cy was removed from 010 and hauled to the II West Refuse <br />stockpile for fmal disposal. <br />5. 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: <br />Under Direction of: <br />Engineer No. 34286 <br />3737 Hwy 133 P.O. Box 535 Somerset, Colorado 81434 USA <br />TEL (970) 929-5122 ~ FAX (970) 929-5177 <br />