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• <br />~ III IIIIIIIIIIIII III <br />CENTER EAGLE GYPSUM COMPANY, L.L.C. <br />P.O. Box 980 ' <br />GYPSUM, COLORADO 81637 <br />(970) 524-9700 <br />FAx: (970) 524-8140 <br />July 10, 1997 <br />Mr. Gregg Squire <br />Colorado Division of Minerals & Geology <br />1313 Sherman St., Room 215 <br />Denver, Colorado 80203 <br />Dear Gregg: <br />~ECEI~/ED <br />JUL 14 1997 <br />Division of n^,merais ~ Geoioyy <br />~~ <br />Centex Eagle Gypsum Company, L.L.C. (Centex) is seeking a Technical Revision (TR) for <br />Colorado Division of Minerals and Geology Permit #M-84-041. The revision reflects an update of <br />maximum areas of land use and reclamation occurring at Centex's gypsum mining operation in Eagle <br />County. <br />I am enclosing a modified version of the table that was included in Exhibit "D" of the <br />amendment application~ubmitted and approved in 991 0 This table updates estimates o ac rve and <br />usage and affected areas. When life of mine and use requirements are considered, the revisions <br />listed are more realistic of the actual usage our operations will require. The modifications will <br />obviously affect our reclamation bonding requirement so please advise me of the Division's <br />bonding calculation reflecting the new estimates as soon as possible. <br />In our recent conversation you indicated that we also need to address reclamation bonding <br />costs for removal and revegitation of the two sediment control dams below the active mining <br />excavation and overburden stockpile areas. The estimate of $2000 reclamation cost for each of the <br />dams is reasonable and should be incorporated into this revision. <br />A check in the amount of $150 is enclosed for this Technical Revision application fee. Please call <br />me with any questions or comments on this application. <br />Yours very truly, ~~~ <br />~~~~ <br />Stephen A. Onorofskie <br />Mine Manager <br />cc. Steve Wentzel, Centex <br />