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~~~yy yyCENGINEERING <br />bl I Skyline Road - Laramie. WY 82070 - (307) 742-0031 <br />FAX (307) 721-2913 - E-mail: infolarQwwcengineering.com <br />May 15, 2006 <br />CDPS Permit CO-0032638 <br />;,. ,. . <br />~IAY 19 2p06 <br />Oivisron olMirloral9 antl G <br />°0(tl0Y <br />Mr. Byron Walker <br />Colorado Division of Minerals and Geology <br />-1313 Sherrnari Street ' _ ` - - - ' " "` <br />Room 215 <br />Denver, Colorado 80203-2273 <br />RE: Edna Mine, April 2006 CPDS <br />Dear Mr. Walker: <br />Enclosed aze the Edna Mine's (Permit #CO-0032638) CPDS reporting results for the above <br />referenced monitoring period. During the month of April 2006, DMP 004 and DMP 007 did not <br />exceed any compliance criteria. <br />Should the Colorado Division of Minerals and Geology have any comments or concerns <br />regarding this submittal, please contact me at your convenience. <br />Sincerely, <br />.~~/.~ <br />Beth A. Heesen, P.G. <br />Project Manager <br />TNS <br />Enclosures <br />K:~P&M COaIl1999-144L EdnaMinc41999-I44LlRepons000fi105150fi APR WALKER.doc <br />