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/ /~ Kennecott <br />~ ~ Energy <br />Cofovryo Coal Mine <br />5731 State Highway 13 <br />Meeker, Colorado 81641 <br />Telephone: (9701824-1579 <br />Fax; (97p) 824-7598 <br />Tay Tonoal <br />Environmental Engineer <br />December 15, 2005, Hand Delivered <br />RECE~~~ ~:"~ <br />Mr. Jim Stark <br />Environmental Protection Specialist DEC 1 J 2005 <br />Colorado Division of Minerals & Geology <br />1313 Sherman Street -Room 215 pNifpn of Minerals antl GeolopY <br />Denver, Colorado 80203 <br />RE: Minor Revision 76, Regraded Overburden Sampling Colowyo Coal Mine, Permit <br />No. C-81-019 <br />Dear Mr. Stark, <br />Attached please find a minor revision dealing with the regraded overburden sampling program. <br />The issue of overburden and regraded overburden sampling has a long history at Colowyo dating <br />from the early 1980's. While the in-pit overburden sampling program was discontinued in 1990 <br />following approval of a technical revision, the regraded overburden (backfill) sampling program <br />remains in effect. <br />This change is ahouse-keeping issue, where permit commitments relative to the sampling <br />program are summarized and brought forward into Section 2.05 rather than being presented only <br />in Exhibit 6, Item 4 . Also included is a tracking sheet and application form. <br />If you have any questions or just require additional information, please don't hesitate in <br />contacting me at the phone number above. <br />Sincerely, <br />~~~ r <br />Tay Tonozzi <br />Senior Environmental Engineer <br />Encl. 3 copies <br />Cc: file CF 1.].1.65 2005 w\encl <br />Public Permit w\encl <br />Antelope Mine • Colowyo Mine • Cordero Rojo Mine • Jacobs Ranch Mine • Spring Creek Mine <br />A member of the Rio Tinto Group <br />