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LAFARGE <br />NORTH AMERICA 1/ <br />Construction Materials <br />March 29, 2004 / <br />Mc Carl Mount <br />Environmental Protection Specialist <br />Division of Minerals and Geology <br />1313 Sherman Street, Room 215 <br />Denver, Colorado 80203 <br />RECEIVED <br />MAR 2 9 2004 '~ <br />Division of Minerals & CeolopY <br />RE: Bunn Ranch Pit, Permit No. M-1980-131 -Work Schedule Extension <br />Dear Mr. Mount: <br />Per our approved Technical Revision for the Bunn Ranch Pit, Lafarge was to have completed the <br />inlet and outlet structures on or before March 31, 2004. As of this date, the inlet structure has <br />been completed per the design submitted. However, the outlet structure will not be completed <br />prior to Mazch 31, 2004. There are two main reasons for not completing the structure, they are: <br />1) The unusually warm spring has resulted in conditions that have precluded Lafarge <br />from working on the structure without incurring additional damage to the pit berms and <br />surrounding vegetation. It has only been the last couple of weeks that have afforded dry <br />enough conditions to work on the structures. in this time, Lafarge has completed the inlet <br />structure and a portion of the outlet structure. <br />2) The pit supplying the riprap closed in December before we could haul all of the <br />necessary riprap to armor both structures. The riprap pit has re-opened for this year, but <br />the rising Yampa River level has precluded us from hauling more riprap. As soon as the <br />river level allows, we will haul in and place the remaining riprap for the completion of <br />the structure. However, the exact timing of proper river conditions for haulage is difficult <br />to predict. <br />Lafarge is committed to completing the approved work in as timely a manner as possible. <br />However, as explained above, our spring weather and the closure of the riprap source has <br />precluded meeting the March 31, 2004 deadline. Therefore, Lafarge is requesting an <br />extension to not later than November 30, 2004 to complete this work. Should you have <br />any questions, please do not hesitate to contact me at 303-657-4336. <br />Sow/ "" I~ <br />John W. Rozelle <br />Western Slope Land Manager <br />CC: File: 805-430 <br />Steve Wood <br />Bruce Daniel <br />Western U.S. Region <br />1400 W. 64th Ave., P.O. BOX 21588, Denver, Colorado 80221-0588 <br />Office: (303) 657-4000 <br />Web: www.lafargenorthamerica.<om <br />