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Section 3.1.5 Reclamation Measures Material Handling: <br /> Grading will be performed to help control erosion and siltation of the affected lands through <br /> phased mining, implementing good operation techniques to handle material as little as <br /> possible, and vegetation of stockpiles remaining in place for more than one growing <br /> season. Although the use of erosion protection devices is not anticipated, if deemed <br /> necessary by the operator at the time of excavation, silt fence, haybale dams or other <br /> erosion control devices will be installed. Backfilling and grading will be completed as soon <br /> as feasible after the mining process is complete for each phase. <br /> Maximum slopes and slope combinations will be compatible with the configuration of <br /> surrounding conditions and selected land use. Mining will occur at a 3:1 slope. Reclaimed <br /> slopes in the water storage reservoir will be at a 3:1 ratio. The upland area will be <br /> reclaimed to grades consistent with pre-mining drainage patterns. <br /> The operator will backfill using fill material generated on-site, or imported inert fill <br /> generated outside the permit area. If any inert off-site material is used as backfill, a <br /> notarized letter will be submitted to the Division as required by Section 3.1.5(9) of the <br /> MLRB Construction Material Rules and Regulations. <br /> It is not anticipated that mining will uncover any refuse or acid-forming or toxic producing <br /> materials, however if any such materials are encountered the operator will take precaution <br /> to handle the materials in a manner that will control unsightliness and protect the drainage <br /> system. <br /> Drill or auger holes that are part of the mining operation shall be plugged with non- <br /> combustible material, which shall prevent harmful or polluting drainage. Any test pits, soils <br /> boring holes, or monitoring wells not located within the mine excavation limits will be <br /> plugged as soon as it can be confirmed that they are no longer needed for the operation. <br /> Mined material to be disposed of within the affected area will be handled in such a manner <br /> so as to prevent any unauthorized release of pollutants to the surface drainage system. <br /> No unauthorized release of pollutants to groundwater shall occur from any materials <br /> mined, handled or disposed of within the permit area. <br /> Section 3.1.6 Water-General Requirements: <br /> The Operator will comply with applicable Colorado water laws governing injury to existing <br /> water rights and with applicable state and federal water quality and dredge and fill laws <br /> and regulations. <br /> The operator will develop and comply with a stormwater management plan and will use <br /> best management practices (BMPs) to ensure groundwater and surface water are <br /> protected to the greatest possible extent. BMPs include schedules of activities, <br /> prohibitions of practices, maintenance procedures and other management practices to <br /> prevent or reduce the pollution in runoff from the site. <br /> Nix—Gravel Mine—MLRB 112 Permit Application <br /> Exhibit E-2 <br />