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<br />III IIIIIIIIIIIIIIII <br />5737 State Highway 13 <br />Meeker, Colorado 81647 <br />13031824-4451 <br />COMPANY <br />April 6, 1994 <br />Ms. Janet Binns <br />Environmental Protection Specialist <br />Colorado Division of Minerals and Geology <br />215 Centennial Building <br />1313 Sherman Street <br />Denver, Colorado 80203 <br />RE: Permit C-81-019 <br />Colowyo Coal Company <br />Technical Revision No. 25 <br />Aest Pit Pond As-Built Map <br />Dear Janet: <br />''~'C ;~F.„ . <br />v':'; <br />c~;~;,,.,, RpRO7.199q_. <br />~, r- ~. <br />,~„~` <br />.~.`_L <br />and Certification <br />Enclosed, please find a copy of the above mentioned as-built <br />map. Volumetric calculations show that both sediment capacity and <br />water storage capacity exceed the design sizing. <br />The as-built map and certification for both the Sediment Sump <br />and Washbay Pond are pending following additional construction <br />modifications to the dam deemed necessary by the professional <br />engineer overseeing the pond construction. <br />Thank you for your attention in this matter, please call if <br />any questions arise. <br />btb <br />Sincerely, <br />Juan Garcia <br />Hydrologist/Environmental <br />Engineer <br />xc: R. G. Atkinson <br />Central Files <br />