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Stantec CITY OF CENTERVILLE -2018 LOCAL WATER PLAN PHYSICAL ENVIRONMENT information on the floodplain and floodway areas. The current FEMA map is dated December 16, 2015. The Federal Emergency Management Administration has recently acquired more accurate, digitized mapping data and has sent copies of a revised FIRM to cities for review. Centerville submitted several comments regarding areas which have been excluded from the floodplain via LOMA-Fs and other methods. However, the resubmitted map did not show these areas out of the floodplain. This map approval process is still in progress at the time of this report. 3.11 SHORELAND AND BUFFER ZONES Minnesota's Buffer Law establishes a requirement for lands adjacent to lakes, rivers, streams, and ditches, to have a buffer consisting of perennial vegetation. This buffer must be at least 16.5 feet wide for ditches, and 50 feet for lakes, rivers, and streams. The purpose of the Minnesota Buffer Law is to filter out phosphorus, nitrogen, and sediment. Buffers for public waters (lakes, rivers, and streams) had to have been implemented by November 1, 2017, while buffers for ditches need to be implemented by November 1, 2018. Local Soil Water Conservation Districts (SWCDs) are responsible for working with landowners to ensure that the Buffer Law is met. The SWCD for Centerville is Anoka Conservation District (ACD). The contact at ACD for Buffer Law implementation is Jared Wagner, whose contact information is listed below: Jared Wagner, Water Resource Technician Anoka Conservation District 1318 McKay Dr NE, Suite 300 Ham Lake, MN 55304 (763) 434-2030 x18 The City of Centerville's City Code (Chapter 156.133, Part B) discusses shoreland ordinances and special provisions relating to development within shoreland areas. The Ordinance contains provisions regulating lot size, setbacks, grading, and vegetative alterations. Centerville's Code specifies that buildings must be set back at least 75 feet from the ordinary high water level for lands that adjoin a lake. Furthermore, there is a setback requirement for Clearwater Creek of at least 100 feet from the ordinary high water level. Because the City of Centerville has a shoreland ordinance that is more stringent than the State's Buffer Law, parcels that are identified on the DNR Buffer Map Viewing Application as lands that need buffers are already compliant. These rules were verified with ACD, who will identify individual landowners if their parcels are non-compliant with the Buffer Law. 3.12 GROUNDWATER CHARACTERISTICS Information on the City's geologic and groundwater characteristics, including geologic features, groundwater sensitivity, groundwater discharge and recharge areas, and the influence of land 3.11 49