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Mr. Peter Hays, DBMS <br />May 3, 2013 <br />(d) No monitoring or analyses were performed for this situation since the water from the fire <br />line was not released off -site and did not impact any natural water body. <br />(e) The investigation is currently in progress to determine the cause of the leak. Excavation <br />and repair will begin after a proper locate is completed. The pipe is a 6" line buried 9 feet <br />under the surface. <br />After discovering the leak, Henderson used a vacuum truck to route the water into the <br />process water circuit via the Tailings Storage Facility. On May 1, water still appeared to <br />be surfacing at a slower rate. Investigation showed that when the valves were turned off <br />they did not fully close which allowed for water to continue leaking out at 3 -5 gallons per <br />minute. This additional water was also cleaned up with a vacuum truck and routed to the <br />process water circuit via the Tailings Storage Facility. Snowmelt in the area made it <br />difficult to see the leak after the valves had been shut off. The valves were tightened and <br />the water was monitored to ensure the flow had fully been turned off. The water will <br />remain shut off until the line is properly repaired. <br />If you have any additional questions or concerns, please feel free to contact me at 303 - 569 -3221, ext. <br />2235 or Bryce Romig at ext. 1204. <br />Sincerely, <br />Amber Moran <br />Environmental Engineer <br />Climax Molybdenum Company <br />Henderson Operations <br />CC (via email): <br />B. Romig, Climax <br />T. Haynes, Climax <br />M. Hamarat, Climax <br />M. Ammon, Climax <br />S. Deely, Freeport- McMoRan <br />N. Hall, Freeport- McMoRan <br />L. Decker, Gallagher & Kennedy <br />Attachments: Photos # 1 -3 <br />Page 2 <br />