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Updated Storm Water Management Plan (SWMP) <br />City of Ramsey, Minnesota <br />City of Ramsey that are not shown on the map. Each site proposed for <br />development must be evaluated for wetlands as required in City Code. <br />Pretreatment of all storm water from new developments is required prior to <br />discharge into any wetlands. Wetlands may be, and are currently being used for <br />storm water storage for larger rainfall events. They may continue to be used for <br />this purpose — even after upstream development, provided that: <br />1. There is acceptable Best Management Practice pretreatment of the runoff in <br />accordance with the MPCA NPDES/SDS Construction Permit, <br />Section III.GD., Permanent Stormwater Management System. <br />2. The bounce from the normal water level to the high water level does not <br />exceed two feet. <br />The Minnesota Wetland Conservation Act (WCA) requires the designated Local <br />Governmental Unit (LGU) in charge of administering the WCA to generate a <br />Notice of Wetland Conservation Act Decision for any impact to wetlands within <br />the City of Ramsey. In all but minor decisions, the LGU will call for a Technical <br />Evaluation Panel (TEP) review of the application or impact prior to issuing a <br />decision. The LGU must give notice of proposed actions affecting wetlands to <br />all of the following: <br />a. The Minnesota Board of Water and Soil Resources <br />b. The Soil and Water Conservation District <br />c. The Minnesota Department of Natural Resources <br />d. The Lower Rum River Watershed Management Organization <br />e. The U.S. Army Corps of Engineers <br />f. Interested citizens requesting notification of such actions <br />If a TEP meeting is required, all listed parties are invited to review the proposed <br />action. However, it is not uncommon for a TEP meeting to consist of only a <br />small contingent of this list, as some invitees may have no jurisdiction over the <br />proposed action. <br />3. Watersheds <br />A general watershed map breaking the City of Ramsey into seven primary <br />watersheds is attached as Figure 89. The naming convention for the nodes (i.e., <br />pipes, channels, junctions, manholes, and ponds) is based on the county section <br />and quadrant numbers and is described in Figure 449. The subsequent Figure <br />Nos. 4-1-10 through 24-23 show the subwatersheds and drainage pattern within <br />each of the separate primary watersheds. Storm water ponds, 100 -year peak <br />pond elevations and outfalls are also shown on these maps. <br />The City Storm Sewer infrastructure is also shown on the individual primary <br />watershed maps. In the GIS database for these maps, the pipe network is color <br />coded to reflect the various pipe sizes. <br />4. Flood Levels <br />Floodplains are covered by City of Ramsey Code Section 117-180.9.22, which is <br />included in Appendix A. A comprehensive map showing all of the FEMA Flood <br />Section IV <br />February 20, 2015March 6, 2015 Page 16 <br />