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• • ~lll Illlllllllllllll <br />YVCC <br />Yampa Valley Coal Corporation 129588 Routt Gounty Road #27, Oak Creek, CO 80a67 • (3031 879-3800 <br />February 29, 1988 <br />David Berry <br />Reclamation Specialist <br />Colorado Mined Land Reclamation Division <br />1313 Sherman Street, Room 423 <br />Denver, CO 80203-2273 <br />~~~~~~~~ <br />~dAR 3118@ <br />MINED LAND <br />~iECLAMATION DIVISION <br />Dear David: <br />tation Success; Permits <br />Upon review of the reclamation success standards portion of our <br />permits, it was noted that the formula for calculating the one-tailed "t" <br />test was incorrectly copied. Enclosed are the revised pages for our permits <br />C-81-071 and C-84-062. For reference, these pages are described as follows: <br />Pa a Permit Document <br />780-137 a) C-81-071 <br />780-136-2 and 780-136-3 Permit Renewal: C-81-071 <br />2.05-68 and 2.05-69 Little Middle Creek Tract <br />Permit Revision <br />2.05-91 C-84-062 <br />I apologize for any inconvenience this may have caused. Please feel <br />free to call if you have additional concerns or comments. <br />Sincerely, <br />Claire Semmer <br />Environmental Specialist <br />CES:dg <br />Enclosures <br />