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T=-~-~c STATE OF COLORADO DIVISION OF MINERALS AND GEOLOGY Department of Natural Resources 1313 Sherman St., Room 215 Denver, Colorado 80203 Phone: (303) 866-3567 FAX: (303) 832-8106 Apri12, 2003 Steve Mossberg CEMEX Inc. P.O. Box 529 Lyons, CO 80540 RE: Pending Technical Revision to Permit Onsite Disposal of Demolition Debris, Lyons Quarry, Permit No. M-1977-208 ~~ DIVISION O F MINERALS GEOLOGY RECLAMATION MINING•SAFETY Biil Owens Governor Greg E. Watcher Executive Director Ronald W. Cat[any Division Director In order to dispose of inert debris from the plant demolition into played-out quarry pits CEMEX must first gain approval of a technical revision to the mined land reclamation permit. There aze no forms associated with technical revisions. Simply identify on the cover page of the submittal that the package is a technical revision to Permit No. M-1977-208. A $188.00 application fee must accompany the submittal. Inert material is defined in Rule 1.1(20) of the Construction Material Rules and Regulations of the Mined Land Reclamation Boazd as: non-water-soluble and non-putrescible solids together with such minor amounts and types of other materials, unless such materials aze acid or toxic producing, as will not significantly affect the inert nature of such solids. The term includes, but is not limited to, eazth, sand, gravel, rock, concrete which has been in a hardened state for at least sixty days, masonry, asphalt paving fragments, and other inert solids. The following items must be addressed in the technical revision submittal: 1. A description of the disposal site(s) and their proximity and relationship to ground and surface water. A description of any ground and surface water protection measure to be installed such as landfill liners, covers, diversion ditches, or temporary storm water controls. 2. A description of the debris to be disposed and a discussion of how the debris will be screened and managed to remove non-inert material such as wood. How will wood debris be disposed of? 3. Maps and narrative sufficient to illustrate proposed debris landfills, areas where demolition will occur, areas where debris will be stockpiled, screened, and staged, and haul routes for debris disposal. 4. Provide approximate dates for the inert debris disposal project, although such dates will not be an enforceable component of the permit. 5. Provide an estimate of the volume of debris to be landfilled. 6. Provide a discussion of the hazardous materials that may be encountered during plant demolition and how they will be managed and disposed. Such materials may include asbestos, PCB, fuel, lubricants, solvents, and other chemicals, as well as lead based paint. Describe any sampling and testing procedures to be employed to assure that debris is inert.