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G <br />_.. --- 999 <br />~,~°~ <br />°` `° STATE OF COLORADO <br />~~ .~.~ <br />._ <br />!•~, ~~•' Roy Romer, Governor <br />-I <br />DEPARTMENT OF NATURAL RESOURCES /~` i~`~ <br />MINED LAND RECLAMATION DIVISION ~,l', <br />FRED R. BANTA, Director ~~ 1 ~~~~ ?~ )~ <br />January 11, 1989 <br />Mr. Jim Stover <br />Blue Ribbon Coal Company <br />743 Horizon Court, #205 <br />Grand Junction, CO 81506 <br />Re: Collection Ditch Design <br />Dear Mr. Stover: <br />According to the Blue Ribbon Mine Permit the collection ditch associated with <br />the Northern side and base of the mine bench is designed for a 10 year event. <br />This design needs to be updated (both in the permit and on-the-ground) to a <br />100 year design as stated on the cover letter. <br />Please note the dates of compliance also stated on the cover letter. <br />If you have any questions concerning this matter, please contact me or <br />Matt Hayes at the Division. <br />Sincerely, <br />~~.~ <br />Tim King <br />Physical Scientist <br />TK/1 j t <br />2526E <br />215 Centennial Building, 1313 Sherman Street Denver, Colorado 80203-2273 Tel. (303) 866-3567 <br />