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

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Table 1-1. Permanent Reclamation Seed Mix 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 M eadow brom egrass 0.0 17.0/11.0 17.0 20 11.0 Sideoats gram a 0.0 9.0/4.5 9.0 15 4.5 Totals 125.0 100.0 35.5 Notes: Use adapted improved varieties and cultivars in the following order of preference,when available 1. certified name varieties,2. named varieties, 3. common seed S. Revegetation Guidance from NRCS. 1.)Seedbed Preparation: Seedbed should be firm and free of weeds and other non-desirable vegetation. Areas were there is excessive compaction will be tilled,such as chiseling and disking,to break up the compaction and then harrowed down. If seedbed is soft after tillage operations allow 2 to 4 weeks following the last operation for the soil to settle and firm up. 2.)Planting period: Dormant planting is possible anytime after November 1 st or when temperatures are cold enough to prevent seed germination and therefore frost damage to young seedlings. Planting may also be done between July 1 st and August 151h or during the spring if irrigation water is available. 3.)Planting Method: Planting should be done with a grass drill or modified grain drill preferable with depth bands and packer wheels. Depth of seed placement shall between 1/2 to 3/4 inch and row spacing shall be 7 to 12 inches. In areas where the use of a drill is not feasible,broadcasting seed is acceptable at double the seeding rate. Raking will be required to cover the seed to a depth of 1/2 to 3/4 inch. 4.)Seeding Mixture: See attached CO-ECS-5 Grass Seeding Planned for recommended upland(dryland)native seed mix and for irrigated pasture and hayland seed mix using a drill application method.For wetland species follow Army Corp of Eng. recommendations. 5.)Fertilization: Fertilization should be based on soil tests. In the absence of a soil test,apply a starter fertilizer at a rate of 40 pounds of available nitrogen and phosphorus per acre(harrow into the soil)during the last operation of seedbed preparation. 6.)Mulching: Clean,weed free mulch such as grass or straw hay averaging at least 8 inches in length should be applied at a rate of 3000 lbs./ac,with a goal of obtaining 50-60%cover. Anchoring by crimping should be done to a depth of approximately 4 inches. 7.)Post Emergent Weed Control: Mowing to control competitive weeds shall be done to improve the establishment of the seeding. Once grass reaches the 3 to 4 leaf stage,herbicides can be used to control weeds,especially noxious weeds.Follow all instruction on herbicide labels. If you seed in the fall and notice weed emergence the next year,wait till the grasses are at least in the third or fourth leaf stage of growth before applying any herbicide.These early emerging grasses can be setback by herbicide if applied too early in their development. 8.) General Additional Comments from NRCS: I looked over your plan and it looks like that seeding recommendation and revegetation will work fine for your new project. This mulch will allow the soils to hold moisture, but not excessively thick which would slow soil temperatures from warming in the spring. If you find noxious weeds in the area please let me know and we can do a site visit to see what the best eradication methods are. I would not determine success or failure of a seeding until after 2 growing seasons are complete following the seeding.The brome should come on relatively quickly and the western wheatgrass may take a little longer.Keeping the weed competition in check will greatly speed establishment.Once these grasses get a foothold they will spread by underground rhizomes filling the voids over time.The seed mix contains both drought tolerant and very durable grasses, and they should persist indefinitely with proper management. C&J Gravel Products, Inc. Page 48 of 93 20 OCT 2021 Application for Permit: Oakbrush Hill Gravel M-2021- C&J-DPR45-001