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Flooding <br /> <br />1. Local units of government, in cooperation with the WMO and other <br /> involved agencies, will manage development based on the 100-year flood <br /> level on all open channels, storm sewer overflow areas, depressions, <br /> wetlands, and lakes. <br /> <br />2. The WMO may establish regional 100-year flood elevations based on <br /> critical storm events on the water bodies within the watershed. <br /> <br />3. The WMO may consider mitigating measures during its review and <br /> permitting process for development within a floodplain. <br /> <br />4. The lowest floor elevation of all development shall be required to be <br /> at least 1 foot above the 100-year flood level for the adjacent water <br /> body. <br /> <br />5. Stormwater conveyance systems shall be designed to ensure flood <br /> protection for the drained area and for all receiving water resources <br /> downstream. <br /> <br />Wetlands <br /> <br />1. Wetlands that are tributary to a protected water resource and that <br /> perform a beneficial water quality function will be maintained in their <br /> <br /> natural condition or improved to provide more benefits for water <br /> quality management, with consideration for other amenities. <br /> <br />2. Wetland alteration may be allowed in Types 1, 2, and 6 wetlands only if <br /> it is determined that the alteration will not impair the necessary <br /> water quality function of the wetland, will not eliminate required <br /> storage within the watershed, and will not adversely affect the <br /> aesthetics of the area and any significant wildlife habitat. <br /> <br />3. The WMO will generally preserve the wetland habitat and hydrologic <br /> function of Types 3, 4, and 5 wetlands of 2-1/2 acres or more. <br /> <br />7 <br /> <br /> <br />