Orono Community Management Plan 2020-2040

Home Browse Search

City of Orono Surface Water Management Plan February 2019 4 framework to restore and protect the nation’s waters.The program is comprised primarily of a two part process. First, states identify waters that are impaired or in danger of becoming impaired (threatened) and second, for these waters, states calculate and allocate pollutant reduction levels necessary to meet approved water quality standards. Several water bodies located partially or completely within the city boundary have been listed as impaired (see Figure 7), and Orono has been allocated pollutant reduction levels accordingly. The Impaired Waters and TMDL Program is discussed in more detail in subsequent chapters. 1.4 LAND USE, COMPREHENSIVE PLAN AND SPECIAL AREAS AND CONSIDERATIONS Land use is an important factor in estimating surface water runoff, as the impervious surface associated with each land use greatly affects the amount of runoff generated.Figure 2 exhibits existing land uses in Orono and Figure 3 exhibits the projected land uses for the year 2040. It is presumed that continued development will be predominantly residential with some commercial/industrial expansion around Trunk Highway 12 and in the Navarre neighborhood. With these projections, priority areas have been identified for future water resource improvements or enhancements. Additional information regarding existing and planned land use in the area can be found in the City of Orono 2040 Comprehensive Plan. FLOODPLAIN, SHORELAND AND WETLANDS Urbanization leads to increased stormwater runoff as pervious soils are replaced by impervious pavement and roofs. When impervious area increases, runoff volume, runoff rate, and pollution also increase causing negative impacts to downstream water bodies. Stormwater management incorporates planning, designing, constructing, and maintaining facilities and providing services as part of a community-wide program in ways that avoid, minimize, and mitigate negative impacts from new construction and existing development to the maximum extent practicable. Rate control, volume control, water quality improvement, and conveyance are all elements of a constructed stormwater management system. Stormwater management is related to, but differs from, floodplain, shoreland, and wetland management programs. Floodplain management addresses federal, state, and local regulations associated with very large storm events. Floodplain regulations govern land alteration and restrict land use within areas specifically designated as flood prone. Shoreland management addresses state and local regulations associated with protecting the stability and habitats of lake and river shoreland while wetland management addresses federal, state, and local regulations that protect the hydrologic, biologic, and functional values of wetlands. Floodplain management occurs in Orono under the authority of City Code Chapter 78, Article VIII - Floodplain Management. The stipulations of this ordinance apply to officially designated floodplain as described in the most current Flood Insurance Study.Refer to the following link for more information regarding the FEMA 100-year floodplain areas around the City. https://msc.fema.gov/portal/advanceSearch# Shoreland management occurs in Orono under the authority of City Code Chapter 78, Article IX - Shoreland Management. Shoreland management classification for public water bodies are provided in Tables 1.2 and 1.3. Refer to the following link for the City Code: https://library.municode.com/mn/orono/codes/code_of_ordinances