2021-10-29_PERMIT FILE - M2021064 (6)

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fines from sediment basins, and mulch), in accordance with standard agricultural practices and based on soil testing for suitability and benefit. There are not expected to be any heavily textured backfill slopes which could have a potential for instability of soil placed on them. Soil existing on site appears to be of adequate quality and quantity to allow for reclamation to grazing land as appropriate,to include placement of a minimum of 12 inches of bedding, porous material above any solid rock or impermeable layer. (Due to slope considerations and other factors, it is not anticipated that all alluvium will be mined.) Revegetation (3.1.10.) Final reclamation will be for use as grazing land, including access roads, with a small area left for construction material production for use on the Dutton Ranch itself. The reclamation on areas suitable for, and planned at the time of reclamation to be used for, grazing land,will include the seeding of a standard agricultural pasture grass and forbs mix, determined by the owners at the time of reclamation, upon advice of the Natural Resources Conservation District and County Extension Agent(An initial seed mix is listed below and also in Exhibits I and J).There will be no intentional seeding with native grasses,forbs, or other plant species unless those are determined to be desirable for pastureland. (Portions of the site within permit boundaries and not to be mined will have existing woody and other vegetation left in place.) Verification of completed reclamation will include a statement prepared and signed by the landowner confirming that the site is acceptable for grazing, and upon demonstration of achieving 75%of pre-disturbance vegetative cover.There will be no intentional planting or transplanting of woody species, including trees, but some may be done strictly as desired by the landowner or where useful for dust, sound, and visual mitigation. During reclamation, weed control methods(Exhibit J) as approved by Conservation District and County officials will be used on all affected land to prevent/control weed infestation. Final approval of reclamation will be granted by the Colorado Department of Natural Resources after reporting, submitting the statement and verification of notifications in accordance with DNR-DRMS procedures, and inspection(including approval/acceptance by the County and landowner). Proposed Seed Mix for Reclamation from NRCS/PANRCD Variety PLS Rates PLS/Ac to use Rate Species (table 6: PMTN 59) Irr/Non-Irr (100%) %in mix (PLS Iblac) Thickspike wheatgrass 0.0 10.0/5.0 70.0 14 5.0 Slender wheatgrass 0.0 11.0/5.5 11.0 24 5.5 Western wheatgrass 0.0 16.0/8.0 16.0 9 8.0 Sandberg bluegrass 0.0 2.0/1.5 2.0 18 1.5 Meadow bromegrass 0.0 17.0/11.0 17.0 20 11.0 Sideoats grama 0.0 9.0/4.5 9.0 15 4.5 Totals 125.0 100.0 35.5 SOIL, SPOIL, AND REVEGETATION (6.4.5.(2)d.) As discussed above,soil will be removed from the pit and segregated in stockpiles then used for reclamation. Stockpile areas, whether or not subsequently mined, will be reclaimed and revegetated in the same way as other mined areas. Where soil was left at the time of building the stockpile(because soil was placed in the stockpile)and the area will not be mined for more than 12 months, the areas will be chiseled or ripped (scarified) prior to replacement of soil and seeding. Any spoil will be used as subsoil to establish final contours and will be covered by soil for revegetation (see also Exhibit J). It is anticipated that a minimum of 12 inches of soil or subsoil will be placed on all surfaces of 2H:1V or flatter, above impermeable or bedrock materials. Exhibit F includes cross-sections of various portions of the pit, showing a profile of the surface before and after mining, and after reclamation. Maps in Exhibit F shows scheduled reclamation by year, planned, approximate C&J Gravel Products, Inc. Page 24 of 93 20 OCT 2072 Application for Permit: Oakbrush Hill Gravel M-2021- C&J-DPR-V5-001