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STATE OF COLORADO <br />OFFICE OF THE STATE ENGINEER <br />Division of Water Resources <br />Department of Natural Resources <br />1313 Sherman Street, Room 818 <br />Denver, Colorado 80203 <br />Phone (303)866-3581 <br />FAX (303) 866-3589 <br />http://www.waler. state.co. us <br />DECEIVED <br />~pY 17 2001 <br />Division ota d Safeiy n, <br />Mirnn9 May 14, 2007 <br />Bryon G. Walker <br />Environmental Protection Specialist <br />Division of Reclamation, Mining and Safety <br />1313 Sherman Street, Room 215 <br />Denver, Colorado 80203 <br />Re: Foidel Creek Mine (Permit No. C-1982-056) <br />Technical Revision Application No. 60 (TR-60) <br />New Thickener Underflow Lines and Associated Ancillary Facilities <br />Dear Mr. Walker: <br />of cow <br />i`v " R> <br />N,.$ <br />!^ n <br />'~y ~~... <br />~l8 J6i <br />Bill RiBer, Jr. <br />Governor <br />Hams D. Sherman <br />Executive Diredar <br />Hal D. Simpson, P.E. <br />State Engineer <br />The Division of Water Resources has reviewed the Foidel Creek Mine (Permit No. C- <br />1982-056) for the Technical Revision Application No. 60 (TR-60). The application <br />proposes new thickener underflow lines to convey slurry from two washplant thickeners <br />to a new 8-inch I.D. cased borehole, where underground pipelines will carry the slurry to <br />abandoned and sealed underground mine workings. Pipelines passing under Foidel <br />Creek may be installed via conventional pipeline boring, jacking methods or conventional <br />trenching methods. Currently, the SEO has no objection to the application. <br />If you have any questions, feel free to contact the information desk of this office at (303) <br />868-3587 and reference the receipt number. <br />Sincere) , <br />Mark J. Vanarelli, PhD, PE, PG <br />Water Resources Engineer <br />Office of the State Engineer <br />Division of Water Resources <br />cc: file <br />MV/mv <br />