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<br />United States Department of the Interior <br />OFFICE OF SURFACE MINING <br />RECLAMATION AND ENFORCEMENT <br />SUITE 310 <br />625 SILVER AVENUE, S.W. <br />ALBUQUERQUE, NEW MEXICO 87102 <br />March 29, 1991 <br />Mr. Fred R. Banta, Director <br />Mined Land Reclamation Division <br />Department of Natural Resources <br />215 Centennial Building <br />1313 Sherman Street <br />Denver, CO B0203 <br />Re: Colorado Rule 4.05,6(3) - Combination Spillways <br />Dear Mr. Banta: <br />~~ <br />a~nca~ <br />^ <br />In Replv Refer To: <br />: ~ "°' ~ - <br />,dP;~ - .~ ,ec <br />~~:ine •v <br />~: ~J, <br />The Albuquerque Field Office (AFO) has received Mr. Steven 0. Renner's <br />letter dated March 2, 1991, on the above subject. We plan to discuss <br />the subject with you and your staff at the Mined Land Reclamation <br />Division (MEAD)-Albuquerque Field Office (AFO) quarterly meeting on <br />April 10, 1991. <br />In the meantime, the Office of Surface Mining Reclamation and <br />Enforcement (OSM) proposes that MLRD notify all permittees with single <br />closed-channel combination principal and emergency spillways that <br />adequate detailed designs be submitted to the Division by May 1, 1991, <br />to bring their sediment pond spillways into compliance with amended <br />Rule 4.05.6(3)(d). The Division would then review the proposed designs <br />for approval/disapproval under technical revision procedures or other <br />appropriate processes. <br />OSM believes that the Division's notification to these permittees should <br />require completed construction and implementation of approved spillway <br />designs in all ponds affected by the amended rule no later than <br />September 1, 1991. After that date, OSM would begin notification to <br />MLRD of a permittee's non-compliance as evidenced during random sample <br />inspections. <br />If you have any questions regarding this matter, please call me ac <br />(505) 766-1486. <br />Sincerely, <br />i' ~ ~ <br />Robert H gen, Director <br />Albuquer Field Office <br />