11/28/2001 Env Bd Packet - Laserfiche WebLink

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wetland regulation. DNR protected wetlands are defined in M.S. 105.37 as "all Types 3, 4, and 5 wetlands, as defined in United States Fish and Wildlife Service Circular No. 39 (1971 edition), not included within the definition of public waters, which are 10 or more acres in size in unincorporated areas of 2.5 or more acres in incorporated areas." Permits are required from the DNR for any alteration of protected wetlands or waters below the ordinary high water elevation. General wetland locations are shown on Map 13 with DNR protected basins shown on Map 14. Detailed maps of DNR protected waters are included in the appendix. The NWI maps were begun in the late 1970s and have recently become available in draft form for the RCWD. The NWI classifies wetland Types 1 -8 regardless of size and therefore provides a more complete accounting of wetland areas. Each municipality in the District has been sent copies of the NWI by the District for local use. Additional copies are available through the District or the Board of Water and Soil Resources. Reproduction of the NWI maps within this plan was not possible due to the large area of the District. A detailed discussion of wetland complexes and permitting requirements of the DNR and U.S. Army Corps of Engineers is included in the Appendix. Also included is a chart for classifying wetlands under several different classification systems used by the various regulating agencies. Floodplain The U.S. Army Corps of Engineers and the Federal Flood Insurance Program have mapped the Watershed District's floodplains. Map 15, which shows the District's 100 -year floodplain, is a composite of their surveys. Map 15 delineates the floodplain areas that would be inundated as a result of a 100 -year flood. This map does not show all floodplain areas and is in part, based on approximately hydrologic methods and limited topographical data. Flood insurance studies are available from the District and each municipality. St. Paul Water Utility The St. Paul Water Department plays a significant role in the management of the water resources of the Rice Creek Watershed District. Peltier, Centerville, Bald Eagle, and Otter Lakes are all capable of being directly affected by withdrawals for the purpose of supplying water to the St. Paul system. 3-13 10/97