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October 2022 Alternative Urban Areawide Review Update Page 6 Everton Avenue Neighborhood City of Hugo, MN WSB Project No. 020256-000 19. Outlets will be required to conform to the RCWD policies. This activity has occurred and will continue to occur. 20. Stormwater will be treated to RCWD and City standards, which includes NURP treatment. Rate control and treatment will be provided through the use of a regional system associated with the ditch in cooperation with on-site treatment to meet the RCWD and City standards. The developers will be required to implement the stormwater management plan outlined as part of Option C in this AUAR. This is ongoing, and portions of the system have been constructed as part of the approved developments. 21. UPDATE: The City will review TMDL studies when completed and revise City practices and/or the AUAR as needed. The Centerville and Peltier Lakes TMDL study has been completed. This study identifies phosphorus as the pollutant causing the impairment in the lakes and has resulted in the need to reduce the external phosphorus loading from Hardwood Creek or Clearwater Creek by between 46 and 62 percent. A number of possible projects to address this load reduction have been identified in the November 2011 report “Capital Improvement Plan for Stormwater Projects within the City of Hugo” (WSB). Four possible projects in this study are located within the Everton Avenue AUAR study area. The City’s 2018 Water Resource Management Plan identifies water quality problems and outlines corrective actions and stormwater projects. Water reuse systems have been constructed along CASH 8 and within Waters Edge Development. Two possible projects in the study are still pending within the Everton Avenue AUAR study area. The Upper Mississippi River Bacteria TMDL study has been completed. This study identifies E. coli as the pollutant causing impairment in the river and has resulted in the need to reduce the external E. coli loading to Rice Creek between 4.8 and 44 percent. The City of Hugo already has a number of existing ordinances related to pet waste and septic systems. The City has also applied for, and received, several inflow/infiltration grants to fund the costs of improving existing sanitary sewer and extensions of the municipal system. 22. Completed: The City shall update the DNR water appropriations permit for the City’s wells. This has been completed. Item removed as it has been completed 23. Temporary dewatering permits may be needed for construction. The developers shall be responsible for obtaining all necessary permits for this work. This activity has occurred and will continue to occur. 24. Construction of additional wells will occur as demand dictates in accordance with Minnesota Department of Health and State standards. This activity has occurred and will continue to occur. 25. As wells become obsolete, wells shall be abandoned and sealed in accordance with Minnesota Department of Health guidelines. This has been done for the properties that had wells when the developments occurred and will continue for any future developments. 26. COMPLETED: The City shall obtain the necessary FEMA floodplain revisions to lower the floodplain elevation in the study area based on the errors in the current FEMA study. This base flood elevation has been revised with FEMA. Item removed as it has been completed.