2014-10-21_REVISION - M1988044 (5)

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TR-07 RECLAMATION PLAN (a) Aggressively invades or is detrimental to economic crops or native plant communities; (b) Is poisonous to livestock; (c) Is a carrier of detrimental insects, diseases, or parasites; (d) The direct or indirect effect of the presence of this plant is detrimental to the environmentally sound management of natural or agricultural ecosystems. (NOTE: This definition is derived from Colorado Noxious Weed Act C.R.S. 35-5.5-103(16)) Non-noxious Weed - Generally includes non-native species of plants that grow in high abundance and may temporarily limit the growth of more desirable species through competition for growth resources,but rarely prevent the success of revegetation. Most native species that invade disturbances in abundance are not considered weeds as these species are often important in the process of developing new ecosystems. These native, weed-like species are rarely damaging although they may be unsightly. These natives should never be controlled without good reason. Topsoil - The upper portion of the soil that is usually distinguished as being darker in color than deeper portions of the soil. Overburden - Material between the topsoil and the sand deposit to be mined. For purposes of this permit, this also includes the subsoil component of the soil. Plant Growth Medium - Usually only includes topsoil,but where backfill is limited to only a foot or two and then capped with topsoil, the overburden used in the backfill is part of the plant growth medium. (Note: These definitions are repeated in the Mining Plan and are therefore applicable and important to both the Mining and the Reclamation Plans.) LIST OF REQUIREMENTS - 1. Backfilling must create a final surface that does not deviate more than 25 feet from the original surface elevation. The less deviation that can be created the better, but 25 feet is the maximum deviation allowed. No additional discussion. 2. If the bottom of the mining pit is already less than 25 feet below the original surface then backfilling will include whatever overburden is available to return the final surface to an elevation as close to the original grade as possible or to be compatible with adjacent reclamation or natural topography. See page 9 for discussion. 3. Backfilling will be done primarily with overburden, but other materials may also be used such as cleanings from sediment basins at the processing plant. If a variety of materials are used they will be mixed so as to avoid creating continuous layers of widely different materials under the surface. JR- 07 Note: experience since the original amendment has shown the use of sediment from the processing plant to be useful and effective.) See page 9 for discussion. 4. Backfilling will not utilize "topsoil" materials separately removed from mining areas. (For topsoiling requirements, see that section later in this plan.) See page 10 for discussion. Coal Creek Sand Resource Amendment 3 (2005)- M-1988-044 Exhibit E Page 2