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31. <br /> <br />farthest from the most sensitive receptors. Additionally, the crusher will be manned at all <br />times during operation. No other potential environmental impacts are anticipated. <br /> <br />Summary of issues. Do not complete this section if the EA W is being done for ElS <br />scoping; instead, address relevant issues in the draft Scoping Decision document, <br />which must accompany the EA W. List any impacts and issues identified above that <br />may require further investigation before the project is begun. Discuss any <br />alternatives or mitigative measures that have been or may be considered for these <br />impacts and issues, including those that have been or may be ordered as permit <br />conditions. <br /> <br />Environmental issues that have been identified for the proposed project include the <br />following: noise, dust, traffic, air quality, potential surface water impacts, potential <br />groundwater impacts, potential rare species disturbances, and potential affect on prime or <br />unique farmlands. The City of Elk River will address these issues through the Conditional <br />Use Permit and Excavation License process, including annual review. <br /> <br />Noise and visual impacts have been addressed by designating allowable hours of <br />operation. No intense lighting will be used at the Site. The physical setting of the project <br />site (surrounded to north, south, and west by mining) conforms to the surrounding land <br />use and therefore reduces these potential impacts. The specific hours of operation will be <br />determined as part of the Conditional Use Permit. <br /> <br />Potential dust generation has been addressed by requiring dust control on an as needed <br />basis. Completed mining areas and soil stockpiles are to be seeded to stabilize soil and <br />minimize wind blown dust particulates. The affect of the proposed project on traffic <br />volume is minimal as discussed in Sections 21 and 22. Potential dust generation will <br />controlled by watering the haul roads on an as-needed basis. <br /> <br />Potential to emit calculations will be performed for the gravel mining operation and the <br />need for an air quality permit will be assessed at that time. Permits will be obtained from <br />the MPCA. It is not anticipated that the proposed project will adversely affect air quality <br />in the surrounding area. <br /> <br />Surface water, erosion, and sedimentation have been reviewed and mitigative measures <br />have been proposed to control these issues. The proposed project will affect drainage into <br />the wetlands located on the Site and also the wetlands themselves as mentioned in Item <br />12 above. The project will not adversely affect or contribute directly other surface water <br />bodies. Adherence to NPDES requirements is also required. Physical controls to be <br />implemented during the proposed operation include adherence to a grading plan and <br />restoration, seeding of stockpiled soil and completed phases, silt fences and/or vegetative <br />buffers. Some control of contaminant migration from potential releases is afforded by <br />these physical controls. Additional mitigative measures to control potential releases to <br />surface water include conformance with best management practices, proper equipment <br />maintenance, and storage tank safeguards. <br /> <br />The proposed gravel mining operation does not include installation of a supply well, <br />thereby eliminating potential interference with other nearby supply wells. Dewatering for <br /> <br />21 <br /> <br /> <br />