2023-01-13_PERMIT FILE - M2022034 (2)

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pagr-s Weld County Road 40. The inclusion of a staging area and access point will minimize soil compaction across the disturbance area. GRADING&RECONTOURING Final grading will support an appropriate seedbed for revegetation and for undetermined future land use.The substrate shall be contoured to emulate the surrounding land topography and facilitate future land development.In accordance with section 3.1.5(3)of the Rules,all grading shall be done in a manner to control erosion and siltation of the affected lands and to protect areas outside the affected land from slides and other damage.The anticipated post reclamation slope gradient for each of the four quadrants will not change from the present slope.Pursuant to Rule 6.4.5,refer to the Reclamation Plan Map for the anticipated final slope gradient. SEEDING&REVEGETATION Following mining activities,each quadrant will be revegetated to establish diverse,effective,and long- lasting vegetative cover(Rule 3.1.10(1)). The operator will mechanically cultivate the area by disk and plow to ensure the preparation of a proper seedbed and good seed to soil contact. As indicated in the Project Description,3-6 inches of topsoil will remain on Site after mining operations are complete to facilitate successful revegetation. If necessary,soil samples will be collected to identify nutrient deficiencies and determine if fertilizer applications or amendments are needed.Once prepared,the mined area will be seeded using a native grass seed mix. The site may also be mulched to stabilize revegetation efforts. Planting native grasses reduces the need for long-term irrigation,soil amendments,and weed maintenance. Sandy Site Mix-General Seed Mix for Weld County3 Seed Species Variety Seeding Rate' Planting Depth Sand Bluestem Champ,Chet 1.00 Ibs pls/acre <Yi inch Sand Lovegrass Bend,Native,Ne27 2.50 Ibs pls/acre <Yi inch Indian Ricegrass Nezpar,Rimrock 3.00 Ibs pls/acre <%z inch Prairie Sandreed Goshen 0.75 Ibs pls/acre <Yi inch Green Needlegrass Lodorm 1.50lbs pis/acre <Yi inch - _- --- -' Blaze,Cimarron, Little Bluestem Camper 0.75 Ibs pls/acre <16 inch Yellow Indiangrass Cheyenne,Holt,Scout 0.50 Ibs pls/acre <Yi inch Switchgrass Blackwell,Nebraska 28 1.50 Ibs pis/acre <Yi inch Sand Dropseed ---- 0.50 Ibs pis/acre 0i inch TOTAL 12.00 Ibs pls/acre *Recommendations made based on drill seeding application To ensure the greatest possibility of plant establishment,an approved,local seed mix developed by Weld County has been selected 2 The species in this seed mix have been selected based on their success given the seasonal patterns of precipitation,temperature and wind,soil texture,and fertility. Seeding rates and time of planting has been recommended by Weld County officials,and the Weld County Conservation District. Seed will be planted using drill seeding at the appropriate depths.