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~~ Banks and Gesso, LLC 720 Kipling St.,Suite117 ^^ Lakewood, Colorado 80215 (303)274-4277 Fax (303) 274-8329 March 14, 2005 www.banksandgesso.com Carl Mount Colorado Division of Minerals and Geology 1313 Sherman Avenue, Room 215 ~~CIFt1~~':'-~) Denver, CO 80203 MAR 151!"e Re: Imported material at M-2001-022 - - - - - Division o(Minerals a,,,, ~~~nn~ Dear Mr. Mount: As recommended by DMG staff, this letter serves as Notice of Intent under Rule 3.1.5 (g) that the Green/Croissant Sand and Gravel Mine site (112 permit no. M-2001-022) will receive imported off-site pit run material. Sand and gravel from the adjacent Walters/Bokelman site (pending application and approval) will be imported to Green/Croissant for processing and use in concrete manufacture within the permitted site at the existing plant facility. The salient features of the proposed import are described below. Please note that the intent of this proposal is not to permit M-2001-022 as a dump site for unclassified fill or other solid waste, which may or may not be the primary usage of Rule 3.1.5 (g). In this case, the need to "backfill inert structural fill generated outside of the approved permit area" would be a secondary result of bringing material onto the site for processing from another DMG permitted area. We also note that the use of off-site materials as backfill for the current Reclamation Plan was contemplated in the original M-2001-022 permit. Under Exhibit E, on page 15 of the 112 application narrative, the applicant noted that, - Backfill generated on site will include waste concrete that has cured for at least six weeks, silts and clays from the washing operation, and non- marketable fine material. Inert fill from off-site may also be brought on site for use as backfill. This material could include concrete fragments, rock, and soil and will be inspected for suitability before acceptance onto the site. These backfill materials will be placed along the slopes of the mining .cells as they are reclaimed to a 3 to 1 slope. - Based on the consistency of the proposed import with the current Reclamation Plan, we believe -that the: current- financial warranty is sufficient to stabilize and cover any exposed backfill.