Laserfiche WebLink
e <br />:l <br />LAFARGE ~ ~ <br />NORTH AMERICA RECEIVED <br />Construction Materials FEB 2 3 2004 <br />Division of Minerals & Gealoyy <br />February 20, 2004 <br />Division of Minerals and Geology <br />1313 Sherman Street, Room 215 <br />Denver, Colorado 80203 <br />RE: Mamm Creek Pit, Permit No. M-2000-113 <br />t~Request for Placement of Inert Fill in an Active Construction Materials Pit <br />To whom it May Concern: <br />Lafarge is requesting permission from the Division of Minerals and Geology to allow the <br />importation and placement of inert fill into our Mamm Creek Pit located near Rifle <br />Colorado. In support of this, Lafarge is pleased to provide the following information <br />concerning Rule 3.1.5(9) on the importation and placement of backfill. <br />a) The attached map details the location of the proposed fill. The fill will be <br />incorporated into the lower 1/3 of the reclaimed slopes and covered with native <br />material. <br />b) As referenced in Point 1, the inert fill will be added to the lower 1/3 of the <br />reclaimed slopes, as it is available. It will be distributed throughout the reclaimed <br />slopes during the life of the mine and will not occupy an individual location. <br />Lafarge estimates that between 5,000 and 10,000 tons of inert fill will be placed <br />each year during the life of the mine. <br />c) The attached affidavit certifies that the material meets the definition of "clean <br />and inert" fill. Based on this affidavit, Lafarge believes that the groundwater will <br />not be impacted by the placement of this material. <br />d) It is anticipated that the material will start to be incorporated into the <br />reclamation process in 2004 and will continue each year over the life of the mine. <br />e) The placement of the inert fill will not alter the planned reclamation of the <br />Mamm Creek Pit. Since it will be placed within the slopes and covered by native <br />material, no changes are anticipated to the post-mining use. <br />Western U.B. Region <br />1400 W. 64th Ave., P.O. BOX 21588, Denver, Colorado 60221-0588 ~,(~ n~ <br />Office: (303) 657-4000 ~""~1~ ",~~,[ qqq <br />Web: www.lafargenorthamerica.com /~/t,~ <br />