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<br />. <br /> <br />. <br /> <br />. <br /> <br />774-6021 MAIER STEWART ASSOC. <br /> <br />124 P06 <br /> <br />APR 21' 93 15: 13 <br /> <br />Honorable Mayor and City Council <br />February 23, 1993 <br />Page Three <br /> <br />7. Emergency overflows or outlets to City drainage systems shall be provided to any area . <br />cunently without an overflow or outlet. <br /> <br />8. All minor drainage system (e.g., streets, swales, and storm sewers) analyses and design <br />shall be based on the S-year rainfall event for residential areas and the lo-year event for <br />commercial areas. <br /> <br />9. All hydrological studies and drainage desi&n shall be based on the ultimate development <br />of the entire tributary drainage area. <br /> <br />10. AIl developments shall provide land, funding, or a combination of both for developing <br />regional sites. <br /> <br />WATER QUALITY <br /> <br />The policy recommendations pertaining to water quality are intended to identify and plan for <br />means to effectively protect and improve surface water quality, including the preventing <br />erosion of soil into surface water systems. These policies would also assist in establishing <br />more uniform local policies and official controls for surface and groundwater management. <br /> <br />1. Treat and/or control runoff to enhance water quality in order to reverse the upward <br />trends in pollutants, especially nutrient and sediment loads. <br /> <br />2. Develop and implement a community education program relating to preserving water <br />quality. <br /> <br />3. All construction plans developed for the improvement of water quality shall inc1~de a <br />detailed plan for maintenance access and a maintenance plan. <br /> <br />4. Wetlands and regional detention areas shall be utilized whenever possible to remove <br />sediment and nutrients from runoff. <br /> <br />s. The Minnesota Department of Natural Resources and the U.S. Army Corps of Engineers <br />have regulatory authority relating to waters and wetlands identified on their respective <br />inventories. <br /> <br />6. The City is responsible for establishing and implementing a permitting program for all <br />activities relating to drainage, wetlands, erosion control, and water resources <br />management. <br /> <br />7. All erosion and sediment control measures (e.g., silt fencing) specified in the erosion <br />.control plan must be installed prior to commencing grading. <br />