2012-02-16_INSPECTION - C1981022

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Hernandez, Alysha From: Bowles, Brock Sent: Thursday, February 16, 2012 8:43 AM To: Hernandez, Alysha Subject: FW: Feb 2012 Inspection Report Brock Bowles Environmental Protection Specialist Colorado Division of Reclamation, Mining and Safety 1313 Sherman Street, Room 215 Denver, CO 80203 303 - 866 -3567 ext. 8142 From: Jim Kiger [mailto:Jim.Kiger @OXBOW.COM] Sent: Wednesday, February 15, 2012 7:54 AM To: Bowles, Brock Cc: Brown, Sandy Subject: RE: Feb 2012 Inspection Report Thanks Brock. I would take issue with the statement that the pond ice has damaged the standpipe on Pond D. I recall that the pipe is likely Ok and discussing that we have used tar to enhance the sealing of the pipe joint bands on the riser located in the water. The water flow at the pipe outlet was observed and we think an elbow joint band in the water is weeping perhaps only less than 1gpm. The tar will often need maintenance and reapplication during the warmer summer months. That will be the plan for this summer when the weather warms up. We believe that a weeping pipe joint does not translate to creating any hurry to conduct the maintenance before spring runoff as the integrity of the outlet works is not compromised with respect to being able handle to the 10 yr event nor is the leak located within the embankment. During the summer, when inflow is at a minimum, we have to pump down the water to safely access the pipe works and /or clean the pond of sediment. We plan to clean this pond this summer and working on the pipe joint will occur at the same time. Please let me know if there are questions. James A. Kiger Environmental Manager Oxbow Mining, LLC., Elk Creek Mine P.O. Box 535 Somerset, Co. 81434 970 - 929 -5806, fax. 970 - 929 -5177 From: Bowles, Brock [ maiIto :Brock.Bowles @state.co.us] Sent: Wednesday, February 15, 2012 7:18 AM To: Jim Kiger Cc: Hernandez, Alysha Subject: Feb 2012 Inspection Report Jim, Here is the Elk Creek inspection report for Feb 2012.