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~~rriiriiiiirriir~i <br />DIVISION OF MINERALS AND GEOLOGY <br />Department of NaWral Resources <br />1313 Sherman SI., Room 215 <br />Denver, CO 80203 <br />Phone: (3031 866 3 567 <br />FAX: 13031 832 8106 <br />August 11, 1993 <br />Dr. W.D. Corley <br />The Corley Company <br />P.O. Box 1821 <br />Colorado Springs, CO 80901 <br />STATE OF COLORADO <br />oc co,o <br />ti~ R <br />Ne ' b <br />. n ` O <br />• ~ B~.Jy . <br />Rny Rumen <br />Governor <br />hlic hael y. Lnng <br />Die icon pirecvv <br />RE: G.E.C.- Orphan Pit- Coal Revocation Project (RN-COAL-MINES-8) <br />Amendments to Bid & West Pit Culvert Calculations <br />Dear Dr. Corley, <br />Enclosed, please find the Amendment 1 to the RN-COAL-MINES-8 <br />Invitation and Bid Document. The amendment was a result of the <br />Pre-Bid Meeting held on August 5, 1993. The bid opening date is <br />scheduled for August 19, 1993. <br />Please also find the design check for the west pit culvert and the <br />west pit diversion ditch. The SEDCAD program was used by DMG for <br />both designs. See the attached documents for further detail. <br />If you have any questions or need additional information, please do <br />not hesitate to call. <br />Sine rely, <br />S. <br />Erica S. Crosby <br />Reclamation Specia t <br />Enclosure(s) <br />cc: Steve Renner <br />Larry Routten <br />m:\coal\esc\gec\corley.am <br />