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Once it has been demonstrated the liner has met the 90 day Initial Liner Test Performance <br />Standards, per the requirements of Section 3.0 of State Engineer Design Standard, topsoil will be <br />spread to the groundwater line and leveled for harrowing and reseeding as described above. A <br />typical cross section of the completed lined pond is included in Exhibit F. The 4 foot berms built <br />along Wilson and Is` Street that screen Cell 21 will remain in place. <br />Water Budget Accounting and dewatering obligations are discussed in Exhibit G, Water <br />information. <br />The settling ponds on the south side of the river are gradually filling with wash fines and are <br />partially reclaimed. As detailed in AM -2, Loveland Ready Mix is planning to reclaim silt ponds <br />5 and 6 on the south of the river to wetlands. The current reclamation plan for these ponds is to <br />partially fill them with washed fines, finish, grade, and seed the area. Because the washed fines <br />are an excellent growth medium for grasses LRM will not topsoil this area but rather just grade it <br />and seed it as reflected in the reclamation cost estimate. When the mining operation is <br />completed, silt pond 5 will be filled except for a two (2t) acre pond and silt pond 6 will be filled <br />except for a one (lf) acre pond. <br />As detailed in AM -1, waste concrete that has cured for at least six weeks, non -marketable fine <br />material, and inert fill from off-site is used as backfill in the waste concrete and inert fill area as <br />noted on the mining plan. (Cells 8 and 14) The inert fill could include concrete fragments, rock, <br />and soil, and is inspected for suitability before acceptance to the site. A maximum of 5,000 c.y. <br />of inert fill and/or waste concrete will be stored on site prior to backfilling at any time. After this <br />material has been backfilled it will be covered with 6 inches of topsoil and seeded with a grass <br />mix. <br />The mixture of grass seed used for reclamation depends upon the availability of the seed and the <br />conditions of the area to be seeded. The permanent drought tolerant, native seed mix proposed <br />for the site is "Foothills Native Grass Mix" (Applewood Seed Co.) consisting of the following <br />grasses in equal proportions: Blue Wildrye, Slender Wheatgrass, Blue Grama, Little Bluestem, <br />Indian Ricegrass, Sandberg Bluegrass, Prairie Junegrass, Green Needlegrass, and Needle -and - <br />Thread planted at a minimum rate of 9 lbs/acres by hydroseed application. <br />Following all re -vegetation, weed management strategies will be implemented to facilitate and <br />achieve native grassland development. Re -vegetation will include an aggressive mowing <br />program to prevent the growth and establishment of weeds, specifically, the eight noxious weeds <br />including: Canadian Thistle (Cirsium arvense), Dalmation Toadflax (Linaria dalmatica), Diffuse <br />Knapweed (Centaurea diffusa). Leafy Spurge (Euphorbia esula), Musk Thistle (Carduus nutans), <br />Russian Knapweed (Centaurea repens), Spotted Knapweed (Centaurea maculosa), and Yellow <br />Toadflax (Linaria vulgaris) as mandated by Colorado State Law (35-5.5CRS 1990, 1996). If <br />needed, herbicide application will be applied as needed to further control these weeds. <br />Herbicides will also be used to control Saltecedar (Tamarix spp.) if it becomes established in the <br />reclaimed area. There are currently no Russian Olives within the mining boundary, any new <br />start ups will be removed.