8.1. SR 11-04-2013 - Laserfiche WebLink

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SECTION 2 • Tibbets Brook(ID—07010203-522)is listed as impaired by the MPCA due to E-coli. • Upper Orono Lake (ID—71-0013-01)is listed as impaired by the MPCA dues to Nutrients and Mercury. • Lower Orono Lake (ID—71-0013-02)is listed as impaired by the MPCA due to Nutrients and Mercury.A TMDL is reported as approved. • Mississippi River(ID—07010203-510)from Clearwater River to Elk River is listed as impaired by the MPCA due to fecal coliform,fish biology and mercury. • Mississippi River(ID-07010203-503)from Elk River to Crow River is listed as impaired by the MPCA due to PCB in fish tissue and mercury. The locations of these impaired water bodies are shown on the water resource problem areas map,Figure 5,which can be found in Appendix A. The U.S. Environmental Protection Agency approved the Minnesota Statewide Mercury TMDL in 2007. As stormwater point sources account for less than 1%of the mercury (majority is atmospheric),the City has limited ability to contribute to this TMDL. The City will be required to implement the TMDL plans for the other water bodies once complete. More information regarding these impaired waters can be found at http://www.pca.state.mn.us/index.php/water/index.html. 2.8.3. Shoreland The City of Elk River has an adopted Shoreland Overlay District.A copy of this ordinance can be obtained from the City Code portion of the City website by clicking on the following link and searching"shoreland" htlp://Iibraly.municode.com/index.aspx?clientld=I 3427&stateld=23&stateName =Minnesota or obtained at City Hall. This ordinance requires setbacks from shoreland areas, and limits the type of development, amount of impervious, and use of the city's shoreland areas. 2.8.4. Floodplain The City of Elk River has adopted a floodplain management ordinance.A copy of this ordinance can be obtained from the City Code portion of the City website by clicking on the following link and searching "floodplain" htlp://Iibrary.municode.com/index.aspx?clientId=13427&stateId=23&stateName =Minnesota or obtained at City Hall. This ordinance generally regulates developments, land alterations and uses within each of the floodway,flood fringe,and general floodplain districts. Refer to Figure 6 for a map showing the locations of FEMA 100-year floodplains within Surface Water Management Plan City of Elk River Section 2 WSB Project No.1992-030 Page-4