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~` I; <br />DIVISION OF MINERALS AND GEOLOGY <br />Dcpanmcnt of Natural Rcwurn•t <br />I I I 1 Sherman $L, Room 115 <br />Denver. Colorado 80101 <br />1'hnnc 0071866 7.567 <br />FAx: 17071 8328106 <br />~~I ~I~~I~~I~~~~~ ~~~ ~~ <br />999 <br />STATE OF COLORADO <br />I~~~~ <br />I)EPA RTMFNT OI <br />NATURA[ <br />RESOURCE` <br />ku. hoot ~ <br />l.ntl rq~u~• <br />May 6, 1994 <br />Mr. Paul Stuben, Trustee <br />New Castle Energy Corporation <br />1507 Pine Street <br />Boulder, CO 80302 <br />Re: Coal Ridge Mine (Permit #C-84-065) <br />Dear Mr. Stuben: <br />Fro t,iLv. <br />I .r~ m~m• IT~n i•~i <br />nl~t L.ud II I ••~~~ <br />I )...wm I)m i ini <br />Phis letter summarizes our telephone conversation on May 5, 1994 regarding the Coal Ridge <br />Mine in New Castle, Colorado. As 1 informed you, the Coal Ridge Mine has never actually <br />mined coal, and is currently commencing reclamation activities as stipulated by the Coal <br />Ridge permit upon the expiration of the Garfield County Special Use Permit. <br />The Colorado Division of Minerals and Geology (Division) currently holds a bond for the <br />mine site to ensure the successful reclamation of the site. Typically, bond release occurs in <br />three phases: <br />Phase I bond release is done after the site is successfully backfilled and graded. This <br />includes sealing the mine portals and returning the topography to the approximate original <br />contours. After the Division has inspected the site and found the backfilling and grading <br />to be adequate, up to 60% of the original bond amount can be released. <br />Phase II bond release comes after the operator has successfully established a vegetative <br />cover and demonstrated that the site is not contributing excessive sedinent to the surface <br />water regime. Again, an inspection and decision by the Division is required. If the <br />vegetation and sediment control criteria are successfully met, an additional 15% of the <br />original bond amount can be released. <br />The criteria for final bond release involve meeting a species diversity standard for vegetative <br />cover. <br />