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STATE OF COLORADO <br />DIVISION OF MINERALS AND GEOLOGY <br />Department of Natural Resources <br />1313 Sherman St., Room 215 <br />Denver, Colorado 80203 <br />Phone: (303) 866-3567 <br />FAX: (303) 832-8106 <br />August 26, 2003 <br />Mr. John Lohr <br />CEMEX Inc. <br />P.O. Box 529 <br />Lyons, CO 80540 <br />RE: CEMEX, Inc.; Lyons Quarry, Permit No. M-1977-208 <br />Technical Revision 02; Adequacy Letter #3 <br />Dear Mr. Lohr, <br />COLORADO <br />DIVISION OF <br />MINEBRALS <br />GEOLOGY <br />RECLAMATIO N•NI NING <br />EAf ETY•SCIENCE <br />Bill Owens <br />Governor <br />Greg E. Watcher <br />Executive Director <br />Ronald W. Canany <br />Division Director <br />Natural Resource Trustee <br />The Division received the second adequacy response prepared by Banks & Gesso, LLC. for <br />Technical Revision (TR-OZ) for the Lyons Quarry, Permit No. M-1977-208. The operator has <br />changed the location of the proposed disposal cell so as to not impact the Smead Ditch. In addition, <br />the plan involves a diversion ditch to be constructed azound the entire azea of the disposal cell with <br />a riprap pad at the ditch terminus. <br />The Division requests further information regarding the riprap ditch terminus pad. Please describe <br />in writing the intent of the riprap pad, and the estimated volume of water to be diverted to this <br />structure. If ponding of water is expected, please explain how and where the water will be <br />dischazged. Please also state if the revised diversion ditch intends to divert any water from existing <br />or natural drainages in the area. <br />The Division's decision due date was extended by CEMEX to September 5, 2003. If you feel more <br />time is needed to complete your reply, the Division can grant an extension to the decision date. <br />This will be done upon receipt of a written waiver of your right to a decision by September 5, 2003 <br />and request for additional time. This must be received no later than the deadline date. If you have <br />any questions, please contact me at (303) 866-4943. <br />Erica S. Crosby <br />Environmental Protection <br />cc: Carl Mount, DMG (via email) <br />Maureen Jacoby; Banks and Gesso, LLC <br />Office of Office of Colorado <br />Mrned Land Rec/amafion Active and Inactive Mines GEOIOgicdl SUNey <br />