Laserfiche WebLink
W. W. Wheeler ~ncl Assoc., Inc. <br />UJater (resources Engineers <br />September 23, 2005 <br />Mr. Bryce Romig, Henderson Mine <br />Climax Molybdenum Company, Henderson Mine <br />P.O. Box 68 <br />Empire, CO 80438 <br />Re: #1051.22 Climax Sludge Management <br />System -Consumptive Usa <br />Dear Bryce: <br />The purpose of this letter is to respond to the issue raised by the State Engineer's <br />Office regarding the consumptive use (CU) associated with the proposed water treatment <br />system modifications at the Climax Mine. As you know, the primary components of the <br />new system include the construction of a new high density sludge plant to be located near <br />the existing lime station and two sludge deposition cells that will be located on Tenmile <br />Tailings Pond. The overall project also includes other features such as a new seepwater <br />pump station and pipeline, a new pipeline across No. 2 Dam, and various other process <br />control and monitoring system upgrades. <br />The modified water treatment system will utilize the same chemical processes that <br />are used in the existing system. The two-stage process involves the addition of slaked <br />lime to adjust the pH of the treatment system influent, which results in the precipitation and <br />removal of heavy metals from the water. The primary goal of the new system is to <br />improve the efficiency of the treatment process and generate a denser byproduct, or <br />sludge. Improved removal of aluminum and molybdenum will also occur with the new <br />system. <br />Water use and accounting at the Climax Mine is performed in accordance with the <br />decree in Case No. 92CW233 and 92CW336 (Readjudication Decree). As requested, we <br />have evaluated the proposed treatment system modifications to determine their impact on <br />the consumptive use of water at the site. The following is a summary of our findings: <br />3700 South Inca Street Englewood, Colorado 801 10 Phone (303) 761-4130 Fox (303) 761-480Q <br />