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<br /> <br />14 <br /> <br />concept Stormwater Management Plan is included as Appendix G and provides the proposed <br />location of these basins, along with the supporting design calculations. <br />EROSION AND SEDIMENT CONTROL <br />The Project is not expected to result in significant adverse impacts to soils, nor create any <br />significant erosion. The Project will follow the guiding principles of the Minnesota Pollution <br />Control Agency’s Stormwater Best Management Practices Manual, using erosion prevention as <br />the primary protection at the site, with sediment controls used as a secondary system. <br />Where possible and to the extent feasible, the erosion prevention methods to be deployed <br />include: <br />• Preserve the existing vegetation. <br />• Design the Project to be compatible with the existing topography, soils, and <br />vegetation. <br />• Schedule grading and construction to minimize soil exposure, especially during the <br />rainy season. <br />• Inspection and maintain of control measures during construction. <br />The following Best Management Practices (“BMPs”) will be used to prevent erosion and control <br />sediment: <br />• Minimize concentrated flows and divert runoff away from exposed or critical areas. <br />• Minimize slope steepness and slope length. <br />• Keep runoff velocities low by using channel linings or temporary structures in drainage <br />channels. <br />• Prepare drainage ways and outlets to handle concentrated or increased runoff. <br />• Use flagged poles or stakes to mark storm drains, catch basins, curb inlets, and other <br />BMPs <br />• Vegetate and mulch disturbed areas. <br />In addition, the Project will utilize a mix of typical temporary and permanent erosion and sediment <br />control best management practices during construction such as: stabilization (seeding, straw, <br />hydro-mulch), silt fences, sediment logs, and stabilized construction exits. The Project’s erosion <br />and sediment control requirements will be confirmed with VBWD and documented via the <br />NPDES Construction General Permit to be obtained prior to building permit issuance. <br />