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Climax Molybdenum COLORADO Oe de sonOMS <br /> A Freeport-McMoRan Company 19302 County Road 3 <br /> Parshall, CO 80468 <br /> Phone (303)569-3221 <br /> October 14, 2014 RECEIVED <br /> Via Email and UPS Priority Mail OCT <br /> Mr. Peter Hays ✓�VISION OFRECLAMATION <br /> Division of Reclamation, Mining and Safety MININGANDSAFETy <br /> 1313 Sherman St., Rm. 215 <br /> Denver, CO 80203 <br /> Re: Follow-up Notice for Mill Tailing Delivery Line Leak, Permit No. M-1977-342 <br /> Mr. Hays: <br /> Henderson Mill is providing this written follow-up notice to a phone call made to you on Oct 9, 2014 <br /> pursuant to Rule 8.1 and 8.2 of the DBMS Rules and Regulations. <br /> This notice is regarding tailing slurry which escaped from a joint in the #12 droptower, along with a larger <br /> flow of material that flowed from the #5 droptower during the same event. The Tailing Delivery Line <br /> (hereafter referred to as the TDL) is designated as an environmental protection facility in Henderson's <br /> Environmental Protection Plan. The leak is believed to have begun at 8:20pm the evening of October 8, <br /> 2014. It is unclear how much tailing was released, but general milling capabilities would put the worst <br /> case scenario at 8,000 gallons per minute of slurry through a duration period from 8:20pm to 9:00pm. <br /> Given the remaining material on the ground, and the overall distance the material traveled, it does not <br /> appear that this magnitude of tailing was released onto the TDL right-of-way. To that end, it is our <br /> understanding that there was continued flow through the TDL, while the release was occurring. All slurry <br /> released from the line flowed along the alignment of the tailing delivery line to the No. 1 Cutout structure, <br /> below the #12 droptower, where it flowed through a culvert and comingled with process waters <br /> impounded in its intended location. <br /> (a) After discovering the issue, Henderson employees immediately stopped flow to the TDL <br /> and diverted it to the Emergency Cutout Line which stopped the flow out of the leaking <br /> line. <br /> (b) Mill tailing slurry flow did not adversely impact human health, property or the <br /> environment. Some slurry accumulated in place, but the majority flowed along the TDL <br /> alignment and access road. Any drainage from this area flows underneath County Road <br /> 3 and along a private Mill access road to a culvert, where it comingled with process <br /> waters flowing into the tailing impoundment. <br /> (c) The contact person for this event is: <br /> Tim Haynes <br /> 19302 County Road 3, <br /> Parshall, CO 80468 <br />