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City of Orono Surface Water Management Plan May 2018 26 4.3.4P Maintain the storm drainage system using the practices described in this plan. Public Works Department would be responsible for maintaining system. 4.3.5P Maintain roads using the practices described in this plan. Public Works Department would be responsible for maintaining roads. 4.3.6P Maintain City’s database for stormwater related data, such as location and type. 4.3.7P Promote education regarding the benefits of proper urban stormwater management. Implementation Strategies 4.3.1S Any project within the City boundary that requires a NPDES CSW permit must provide a copy of the permit to the City prior to any work. Any facility required to obtain a Multi-Sector permit will be required by the City to do so in accordance with MPCA requirements. The City will continue to maintain its MS4 permit in accordance with State requirements. In addition, a maintained copy of this plan is the first step in being prepared for potential future NPDES requirements. 4.3.2S Rely on the water resource management standards set forth by the Minnehaha Creek Watershed District (MCWD), and provide the necessary resources for the implementation of those standards and this Surface Water Management Plan. Employ staff or a consultant to perform the following tasks: A.Review Planning and Zoning Applications with regards to Water Resource Management Standards. B.Inspect BMP installations. C.Enforce BMP maintenance. The City will continue to rely on MCWD to maintain authority for reviewing and approving applications for compliance with MCWD’s rules and enforcing those rules as necessary. The City will also review all applications to ensure it is not adversely impacted by proposed improvements (i.e. infiltration over sanitary sewer, potential conflicts with future projects), and at a minimum, any proposed improvements will be required to limit proposed peak stormwater runoff rates for the 2, 10, and 100 year, 24 hour events to existing peak rates for the same events and subject to the minimum criteria outlined in the NPDES MS4, Construction Activity, and Multi-Sector permits as applicable. 4.3.3S Potential stormwater projects that decrease local runoff rates and volumes and increase water quality should be identified and prioritized. Sites should consider available funds, feasibility, possible project partners, benefits provided, bioengineered solutions, and TMDL Implementation Plans. Once projects are identified, this plan should be updated as needed to list the improvement sites in Section 5.0. 4.3.4S Maintain the storm drainage system with inclusion of the following items: A.Administer inspection program to ensure general maintenance is performed. Stormwater treatment devices should be inspected regularly, as required by the MS4 Permit. B.Maintain energy dissipaters and volume controls to prevent erosion. C.Administer pond inspection program to ensure adequate stormwater management is provided, as required by the MS4 Permit. Ponds should be cleaned when sediment has reduced the volume below the outlet to half of the design volume. D.Properly dispose of accumulated sediment collected from BMPs and any waste