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shall be maintained in perpetuity either through dedication of the facilities to the City through an easement or through a maintenance agreement between the landowner and the City. 5.4. Runoff Management and Flood Control 5.4.1. Goal Limit public capital expenditures that are necessary to control excessive volumes and rates of runoff. 5.4.2. Policies 1. Hugo's primary flood control strategy is to reduce the volume of its runoff through regional stormwater reuse and infiltration projects. 2. Hugo will strategically place flood control facilities near highly permeable soils so that regional infiltration can be promoted. 3. Any development or redevelopment within the City of Hugo will be required to control runoff to the extent necessary to be consistent with this plan. 4. The design of all major stormwater storage facilities shall attempt to accommodate a critical duration event with a 1 % chance of occurrence in any given year. These facilities include lakes, ponds, and their outlets. New storm sewer systems shall be designed to accommodate a critical duration event with a 10% chance of occurrence in any given year. 5. Any new or redevelopment within the City will maintain three feet (3') of freeboard between 100 -year high water elevation and the minimum building opening. However, if this three foot (3) freeboard requirement is considered a hardship, the standard could be lowered to two feet (2) if certain conditions can be met. 6. Wetlands will be protected within the City boundaries to assure that the value of wetlands in relation to their surface water quantity benefits are not significantly impacted by development. 7. The City will be allowed to discharge water from landlocked basins provided that the rates and volumes of water discharged from the area will be limited to the maximum extent reasonable taking into consideration downstream impacts. 8. The City will require compensatory storage equal to the storage losses resulting from floodplain fill. All floodplain permitting activities shall be subject to the respective flood sector requirements as assigned by Rice Creek Watershed District. 9. The City will require that the peak rate of runoff for any area that drains to Brown's Creek be limited to the pre -development rate of runoff when it is deemed reasonable and feasible to do so. 10. The City shall require that development not increase the pre -development rate or volume of runoff in landlocked areas of the Brown's Creek Watershed to WATER RESOURCE MANAGEMENT PLAN CITY OF HUGO WSB PROJECT NO. 7904-52 SECTION 5 PAGE 4