2022-06-08_PERMIT FILE - M2022001 (2)

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approached the vicinity of the site and represent a growing need for both construction materials and water storage facilities. (c) A description of how the Reclamation Plan will be implemented to meet each applicable requirement of Section 3.1. The Operator will carry reclamation to completion with reasonable diligence. Each phase of reclamation will be generally completed within one to two years from completion of mining, but not more than five years from the date the Operator informs the Board or Office that final reclamation has commenced. Section 3.1.5 Reclamation Measures Material Handling: Grading will be performed to help control erosion and siltation of the affected lands through phased mining, implementing good operation techniques to handle material as little as possible, and vegetation of stockpiles remaining in place for more than 180 days with the Weld County Sandy Site seed mix: Weld County-Sandy Site Mix Bluestem (Champ, Chet) 1.00 Ibs pis/acre Sand Lovegrass (Bend, Native, Ne27) 2.50 Ibs pis/acre Indian Ricegrass (Nezpar, Rimrock) 3.00 Ibs pls/acre Prairie Sandreed (Goshen) 0.75 Ibs pis/acre Green Needlegrass (Lodorm) 1.50 Ibs pis/acre Little bluestem (Blaze, Cimarron, Camper) 0.75 lbs pis/acre Yellow Indiangrass (Cheyenne, Holt, Scout) 0.50 Ibs pis/acre Switchgrass (Blackwell, Nebraska 28) 1.50 Ibs pis/acre Sand Dropseed 0.50 Ibs pis/acre Total: 12.00 pounds pis/acre Although the use of erosion protection devices is not anticipated, if deemed necessary by the operator at the time of excavation, silt fence, haybale dams or other erosion control devices will be installed. Backfilling and grading will be completed as soon as feasible after the mining process is complete for each phase. Maximum slopes and slope combinations will be compatible with the configuration of surrounding conditions and selected land use. Mining will occur at a slope that is stable. Reclaimed slopes in the water storage reservoir will not be steeper than a 3:1 ratio and will be reclaimed at a 4:1 ratio for the slurry wall lined cells mined at 1.5:1 ratio. The upland area will be reclaimed to grades consistent with pre-mining drainage patterns. The operator will backfill using fill material generated on-site, or imported inert fill generated outside the permit area. If any inert off-site material is used as backfll, a notarized letter will be submitted to the Division as required by Section 3.1.5(9) of the MLRB Construction Material Rules and Regulations. Section 20-Gravel Mine—MLRB 112 Permit Application Exhibit E-2