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III IIIIIIIIIIIII III <br />999 <br />C c~rpRUs <br />"'~ Empire Corporation <br />September 27, 1991 <br />~?ECEIVED <br />Mr. Carl Mount Q~T 0 7 1991 <br />Mined Land Reclamation Division MInE1tl Land <br />215 Centennial Building Reclamation Division <br />1313 Sherman Street <br />Denver, Colorado 80203 <br />RE: Technical Revision 20, Ditches & Culverts, <br />Permit C-81-044 <br />Dear Mr. Mount: <br />Cyprus Empire Corporation (CEC) is requesting this technical <br />revision (3 copies enclosed) in order to provide designs for, all <br />culverts on site, and several ditches, both old and new. This <br />should; 1) resolve concerns over culvert designs; 2) stabilize <br />discharge over spoil material in the 5A Yard, and 3) eliminate our <br />largest SAE by adding this drainage area to pond 5A-P1. <br />Pages 5, 7a-71, 27-30, 37-41q, 265-267c, 273a-273c, 283a-283c, <br />305a-305c, 312a-312c, 313a-3130 and 315a-315n of Exhibit 18 and Map <br />26 of permit C-81-044 have been revised or added and are enclosed. <br />Also enclosed is our proposed public notice. <br />We would appreciate a quick review so that ditch 5A-D3 can be <br />installed this fall. If weather prevents construction, it will not <br />be installed until late spring or early summer of 1992. <br />If there are questions, please contact me. <br />Sin erely, <br />T rrell ohnson <br />Environmental Engineer <br />vld <br />cc: OSMRE Albuquerque, NM <br />OSMRE Denver, CO <br />BLM District Mgr. Craig, CO <br />BLM Area Mgr. Craig, CO <br />P.O. Box 68 <br />Craig, Colorado 81626 <br />303-824-8246 <br />