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DNR <br />CC O% <br />October 27, 2014 <br />COLORADO <br />Division of Reclamation, <br />Mining and Safety <br />Department of Natural Resources <br />1313 Sherman Street, Room 215 <br />Denver, CO 80203 <br />Brian Watterson <br />Moffat County Mining <br />29515 Routt County Road 927 <br />Oak Creek, Colorado 80467 <br />RE: Williams Fork Mines; C- 1981 -044; 2013 Annual Hydrology Report Information <br />Dear Mr. Watterson: <br />The Colorado Division of Reclamation, Mining, and Safety is conducting a review of the 2013 Annual <br />Hydrology Report for the Williams Fork Mines. The Division found several data points that are missing <br />that will need to be submitted prior to the Division completing its review of the report. <br />1.) All of the groundwater monitoring wells listed on Table 1; "Ground Water, Water Well <br />Sampling ", in Exhibit 29 of the permit; required to be sampled annually for the D List <br />parameters were missing the results for the following constituents in the 2013 Hydrology <br />Monitoring Data tables: Hardness(Total), Bicarbonate, Arsenic, Zinc and Boron. Please provide <br />this information. <br />2.) The Williams Fork Mines entered temporary cessation during the 3rd Quarter of 2013. Thus, <br />Moffat County Mining (MCM) was required to monitor in accordance with the active mining <br />status procedure for the first two quarters. The following wells were missing water level <br />measurement data for the first quarter of 2013: wells 83 -01, 83 -02, 83 -03 and 84 -01. Please <br />supply this information. <br />3.) MCM did not report the flow rate at the required frequency at both the surface water monitoring <br />sites along the Williams Fork River (NAT- and WF -2). Please supply this information. <br />If you have any questions feel free to contact me at (303) 866 -3567, extension 8120. <br />Sincerely, <br />Jared Ebert <br />Environmental Protection Specialist <br />1313 Sherman Street, Room 215, Denver, CO 80203 P 303.866.3567 F 303.832.8106 http: / /mining.state.co.us <br />John W. Hickentooper, Governor I Mike King, Executive Director I Virginia Brannon, Director <br />0F' X410 <br />I a 0 <br />1876 <br />