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DEPARTMENT OF NATURAL RESOURCES <br />DIVISION OF WATER RESOURCES <br />June 2, 2011 <br />John W. Mckenlooper <br />Governor <br />Mike King <br />Executive Director <br />Berhan Keffelew, Environmental Protection Specialist <br />Division of Reclamation, Mining and Safety <br />1313 Sherman Street, Room 215 <br />Denver, CO 80203 <br />Dick Wolfe, P.E. <br />Nom v?nvtlaiN Jr ADirector/State Engineer <br />Re: Notice of Intent for the Hanson Uranium Project (File No. P-2009-025) <br />Request to Convert Exploration Holes into Monitoring Wells <br />Dear Mr. Keffelew, <br />The Division of Water Resources (DWR) has reviewed the above-referenced Notice of Intent received by <br />the Division of Reclamation, Mining and Safety (DRMS) from Black Range Minerals. The Notice of Intent <br />serves as a request to convert 10 of 25 exploration drill holes into monitoring wells by installing small <br />vibrating wire piezometers (VWPs) during exploration hole abandonment. The Hanson Uranium Project <br />is located in the Tallahassee area of Fremont County, northwest of Canon City. <br />According to the April 22, 2011 Technical Memorandum from Ben Vallerine of Black Range Minerals, the <br />VWPs will be attached to a 1.5-inch diameter sacrificial grout pipe which will be lowered into place using <br />the drilling rig. The VWPs, associated grout pipe, and borehole will then be completely backfilled with a <br />cement-bentonite grout mixture, which will permanently encapsulate the VWPs in the hole. Based on <br />the description of the VWP installation/exploration hole abandonment, this office will not require the <br />applicant to obtain monitoring well permits for the aforementioned activity. <br />Thank you for the opportunity to comment on this application. If you have any further questions <br />regarding this matter, please feel free to contact me directly at this office or contact the local Water <br />Commissioner. The Water Commissioner for District 12 is Brian Sutton, who may be contacted at (719) <br />269-2800 or via email at Brian.Sutton@state.co.us. <br />Sincerely, <br />Caleb Foy, .I.T. <br />Water Resources Engineer <br />cc: Steve Witte, Division 2 Engineer (via email) <br />Brian Sutton, District 12 Water Commissioner (via email) <br />CRF: HansonUraniumProject_p2009O25_PiezometerMonitoring.docx <br />Office of the State Engineer <br />1313 Sherman Street, Suite 818 • Denver, CO 80203 • Phone: 303-866-3581 • Fax: 303-866-3589 <br />www.watenstate.co.us