2019.02.04 CC Packet - Laserfiche WebLink

Home

11. The City will investigate the development and implementation of a water quality monitoring program capable of establishing that the stormwater treatment basins constructed within the City are not only designed to NURP standards, but also meet the anticipated design removal efficiencies based on actual monitoring of the system. This program will be carried out to the extent deemed necessary and reasonable by the Hugo City Council. The City will keep the RCWD informed of all water quality monitoring program updates. 12. For areas within the City that are redeveloping, projects that creates or reconstructs 10,000 square feet or more of impervious surface a permit will be required. This does not include public linear projects. For public linear projects, a permit is required to create 10,000 square feet or more of impervious surface through multiple phases or connected actions of a single complete project, as defined by the watershed district, within a Resource of Concern Drainage Area. This is only valid within those parts of the City of Hugo which fall within the boundaries of the RCWD. All other areas of Hugo are subject to the permit requirements for BCWD and CMSCWD. 13. Any new development or redevelopment shall show sufficient drainage and ponding easements over hydrologic features such as floodplains, storm sewers, ponds, ditches, swales, wetlands, and waterways. 14. All new and redeveloped stormwater management structures and facilities 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 to prevent flooding. 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. For new development and redevelopment, proposed stormwater runoff rates must be less than or equal to the existing runoff rates for the critical 2-year, 10- year 24-hour rainfall events and 100-year 10-day snowmelt event. For the 100- year 24-hour rainfall event, discharge rates must be less than 0.1 cfs/acre. Atlas 14 rainfall data must be used to calculate these values. 4. The design of all major stormwater storage facilities shall attempt to accommodate the 100-year critical duration event. These facilities include lakes, ponds, and their outlets. New storm sewer systems shall be designed to accommodate the 10-year 24-hour design storm. Atlas 14 rainfall data must be used to calculate these values. 5. Any new development or redevelopment within the City will maintain three feet of freeboard between the 100-year high water elevation or 10-day snowmelt event, whichever is greater, of the nearest stormwater BMP or natural waterbody and the SECTION 5