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DNR ' COLORADO , <br /> CO Division of Reclamation, <br /> Mining and Safety <br /> Department of Natural Resources <br /> 1313 Sherman Street, Room 215 <br /> Denver, CO 80203 <br /> Rule 1.1(24)/1.1(20) "Inert Material" means non-water-soluble and non-putrescible solids <br /> together with such minor amounts and types of other materials, unless such materials are acid <br /> or toxic producing, as will not significantly affect the inert nature of such solids. The term <br /> includes, but is not limited to, earth, sand, gravel, rock, concrete which has been in a hardened <br /> state for at least sixty days, masonry, asphalt paving fragments, and other inert solids. <br /> **Rebar or other protruding reinforcements must be removed prior to placement. All material <br /> must be buried to a minimum of 3 feet below final surface grade. <br /> 1. General Description of material to be imported: Approximately 500 cyd clean fill dirt and <br /> 50,000 tons of concrete rubble will be imported each year. See attached Technical Revision <br /> 2. Approximate volume of inert material to be backfilled: see yds/year dirt, no concrete backfill <br /> 3. Estimated dates of commencement: 2025 and completion: end of mining <br /> 4. Use/purpose of imported material: Dirt will be used to supplement growth medium for the seed <br /> beds or backfill material along the working face. The concrete rubble will be crushed and sold as <br /> recycled construction material. No concrete will be used as backfill material. Approximately 5,000 <br /> tons will accumulate in the mine until crushing begins. <br /> 5. A general engineering plan stating how the material will be placed and stabilized in a manner <br /> to avoid unacceptable settling and voids. Because amount of dirt to be imported is so small <br /> and will be used for recoiling or placed along high-walls during grading it will be <br /> compacted during placement and will need no special treatment to avoid unacceptable <br /> settling or voids. All concrete material will be removed from the site. <br /> `/ Enclosed is a map showing the proposed location of the inert material. <br /> 3.1.5(9)(c) - Affidavit <br /> I Fred Orr of Baculite Mesa, LLC. hereby <br /> certify that only clean and inert material will be imported at Baculite Mesa Pit <br /> All material will adhere to the Division's definition of Inert Material as defined in Rule <br /> 1.1(24)/1.1(20). <br /> Signature: 2—co Date: —2? <br /> -2- <br />