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Once applied to the surface, the new soils will be exposed to the raw forces of erosion until <br /> adequate vegetative cover and root mass develops. Erosion requires both detachment and <br /> transportation in order to occur. Running water, wind, and raindrop impact are the main forces of <br /> erosion acting upon the soil. The use of a sterile hybrid live cover crop will aid in the stabilization <br /> of the soil by allowing a quick vegetative cover to become established in advance of the native <br /> grasses. The hybrid will also serve as an aid to reduce competition resulting from the <br /> establishment and growth of unwanted pioneer species (weeds) on disturbed ground. <br /> The attending reclamation seed mixture, and as approved, has a provision for the use of a sterile <br /> hybrid grass in lieu of mulch. Mulch, even when crimped with specialized equipment, is subject to <br /> being blown off the property, or reduced to an ineffective stubble. Often, it has been observed to <br /> intercept rainfall where it quickly evaporates from the stubble surface, limiting the benefits of light <br /> precipitation by preventing infiltration and percolation of moisture to the root zone. The hybrid on <br /> the other hand will establish quickly, but since it is sterile, will not continue to compete with the <br /> emerging native grasses. After two to three years, the hybrid grass will begin to die out just as <br /> the native grasses emerge and improve their dominance over the revegetated areas. <br /> Increasing Organic matter, such as the incorporation of manure into fallow soils, will aid in the <br /> restructuring of the new soils by increasing the moisture and fertility holding capacity of the upper <br /> profile seed bed, while simultaneously facilitating healthier plant-soil-water relations and overall <br /> root development of the emerging grasses. As the roots of the emerging grasses develop and <br /> mature over time, the resulting root mass will serve to build upon the base percent organic matter <br /> content of the new soils, thereby increasing the potential for long term survival and spread of the <br /> established grasses. Soil testing may occur on the new soils to better gauge the need or success <br /> of any applied organic soil amendments respective of the resulting vegetative cover. <br /> The addition of fertilizer may also aid in the establishment, growth and survival of the emerging <br /> grasses. Fertilizer may be applied to the seeded areas at rates determined from soil tests of the <br /> reapplied soils. To this end, soils may be sampled as needed. Sampling will utilize a hand auger <br /> and approved NRCS soil sample bags, and utilizing recommended procedures. Any soil testing will <br /> be conducted by the CSU Soil Laboratory in Ft. Collins, Colorado. The tests will be used to <br /> monitor soil quality and suitability of any amendments. Fertilizer may be withheld until after <br /> emergence to deter the encouragement of weed species. The use, composition and rates of <br /> 17 <br /> 6.4.5 EXHIBIT UJ - Soils and Vegetation Information <br /> fertilization will be determined prior to the time of seeding where appropriate, and may be <br /> reported in the OMLR Annual Reports, as appropriate. <br /> WEED MANAGEMENT PLAN; <br /> Because the Agricultural Fields are the only planned area where the deposit itself <br /> will be extracted, it should be understood they are within the floodplain of two <br /> rivers. As such, stockpiling and placement of soil is initially designated outside of <br /> the flood plain on top of the pre-existing soil stockpile located over the NE Section <br /> 261Pabe <br /> Correspondence to the Colorado Office of Mined Land Reclamation—Reply to Rob Zuber,L.PS—Adequacy Letters of 24 June and S <br /> August 2022; in the matter of the Two Rivers Sand,Gravel and Reservoir Project—M2022-011 <br />