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LAFARGE <br />Apri122, 2002 <br />via facsimile <br />Ms. Erica Crosby <br />Environmental Protection Specialist <br />Colorado Division of Minerals and Geology <br />1313 Sherman Street, Room 215 <br />Denver, CO 80203 <br />RECEIVED <br />APR 141001 <br />Division of Minerals and Geology <br />Re: Mann Lake (DMG Permit M-1982-147) Technical Revision No. <br />Dear Ms. Crosby: <br />This letter is a follow-up to our meeting on Apri122, 2002 regazding the Division's concern that <br />there might have been an additional azea of mining beyond the permitted mining limits at the <br />Mann Lake operation. Figure 1, submitted with the Technical Revision 1, presents the current <br />permitted mining limits and the proposed revision to the limit. On inspection of this figure, the <br />Division felt there might be an azea of mining in the northeast and east-central portion of the <br />mining azea that extended beyond the permitted limit. This letter confirms my explanation at our <br />meeting that this area is not a mining excavation. Rather, the disturbed area includes the product <br />stockpiles on the east side of the process plant azea. The disturbed area in the northeast portion <br />of the area appears to have been the location of an overburden stockpile that has since been used <br />in the reclamation. You and I also confirmed that these azeas are within the permitted affected <br />area of the operation, therefore, the stockpiles would be allowed in these areas. <br />Please call me at 303.657.4425 if you have any other questions related to this issue. <br />Best Regards, ~, <br />Duane W. Bollig <br />Division Land Manager <br />cc: Greg Lindsay <br />Ian Smith <br />Jeff Schwarz <br />file 416-430 <br />Permit #:~~ - ~~~ Confidental?: N <br />Class: Type-Seq.: <br />From:~~ To: <br />Doc. Name m ~ ~ <br />Doc. Date (if no date stamp): -z4-C~Z <br />WESTERN MOBILE DENVER, a suMidiary of Wfarge Corporation <br />DENVER METRO AGGREGATE DIVISION <br />1400 W. 64th Ave., P.O. BOX 275001, Denver, Colorado 80227-0599 <br />Office: (303) 657-4400 Fax: {303) 657-4413 <br />