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~ lhi t yr LcJ~yi~~y <br />DIVISION OF MINERALS AND GEOLG. <br />Department of Natural Resources <br />1313 Sherman 8t., Room 215 <br />Denver, Colorado 80203 <br />Phone: (303) 8663567 <br />FAX: (303) 832.8106 <br />June 21, 2006 <br />Dick White <br />Cotter Corporation <br />P.O. Box 700 <br />RRC~~~'~D <br />JUL 31 2006 <br />~~~/mss <br />Dlvis~on of Mlnarals and Geology <br />COLORADO <br />D I V 15 1 0 N O F <br />MINERALS <br />GEOLOGY <br />0.EClAMATION• MINING <br />SArETY•SCIENCF <br />Bill Owens <br />Governor <br />Russell George <br />Executive Diredar <br />Ronald W. Cattany <br />Division Director <br />Nucla, CO 81424 ~ Natural Resource Trustee <br />Re: Waste Dan:p Monitor Well Plans For SM-18 Mine (M-1978-II6), JD-6 Mine (M-1977-370), JD-8 Mine <br />(M-1984-074) and JD-9 Mine -1977-306). / <br />Dear Mr. White: <br />Cotter Corporation has proposed the installation of monitor wells and piezometers at the above referenced sites to <br />gather hydrological data concerning the potential migration of metals from waste dump rock into the surrounding <br />area. Cotter and staff met on May 2"d, 2006 on site to discuss the initial proposal and possible well locations: <br />Staff has in principal agreed to the plan and locations, but final approval cannot be given until the plan is formally <br />submitted and reviewed. Cotter needs to submit the plans for each site which should include a basic well <br />construction plans as well as site and well location maps. The plans should also set a monitoring schedule and <br />proposed parameters to be tested from the samples. The Division also needs in the plan proposal a projected start <br />date for construction and possible first date for submission of data for review. <br />The approval of the plans, construction and data collection aze critical for scheduling Cotter's appeals to the <br />Boazd of the DMO designation by the Division of the JD Mines and Non-DMO for the SM-18. Staff will review <br />the plans as quickly as possible, but must have time to do so adequately prior to implementation. <br />If you need additional information, please contact me at the Division of Minerals and Geology, Grand Junction <br />Field Office, 101 South Third Street, Room 301, Grand Junction, Colorado 81501, telephone no. 970-241-1117. <br />Sincerely, <br />G. Russell Means L •f~G~ <br />Environmental Protection Specialist <br />Cc: Kate Piclcford, DMG EPS, Durango, Hydrology Review <br />Cc: Carl Mount, Senior Environmental Protection Specialist, North Team <br />Cc: Cheryl Linden, Attorney General Office, Denver <br />Cc: Travis Stills, Energy Minerals Law Center, Durango <br />Office of Office of Colorado <br />Mined Land Reclamation Active and Inactive Mines Geological Survey <br />