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City of Orono <br />Surface Water Management Plan February 2019 26 <br />4.3.4P Maintain the storm drainage system using the practices described in this plan. Public <br />Works Department would be responsible for maintaining system. <br />4.3.5P Maintain roads using the practices described in this plan. Public Works Department <br />would be responsible for maintaining roads. <br />4.3.6P Maintain City’s database for stormwater related data, such as location and type. <br />4.3.7P Promote education regarding the benefits of proper urban stormwater management. <br />Implementation Strategies <br />4.3.1S Any project within the City boundary that requires a NPDES CSW permit must provide <br />a copy of the permit to the City prior to any work. Any facility required to obtain a <br />Multi-Sector permit will be required by the City to do so in accordance with MPCA <br />requirements. The City will continue to maintain its MS4 permit in accordance with <br />State requirements. In addition, a maintained copy of this plan is the first step in being <br />prepared for potential future NPDES requirements. <br />4.3.2S Rely on the water resource management standards set forth by the Minnehaha Creek <br />Watershed District (MCWD), and provide the necessary resources for the <br />implementation of those standards and this Surface Water Management Plan. Employ <br />staff or a consultant to perform the following tasks: <br />A.Review Planning and Zoning Applications with regards to Water Resource <br />Management Standards. <br />B.Inspect BMP installations. <br />C.Enforce BMP maintenance. <br />The City will continue to rely on MCWD to maintain authority for reviewing and <br />approving applications for compliance with MCWD’s rules and enforcing those rules <br />as necessary. The City will also review all applications to ensure it is not adversely <br />impacted by proposed improvements (i.e. infiltration over sanitary sewer, potential <br />conflicts with future projects), and at a minimum, any proposed improvements will be <br />required to limit proposed peak stormwater runoff rates for the 2, 10, and 100 year, 24 <br />hour events to existing peak rates for the same events and subject to the minimum <br />criteria outlined in the NPDES MS4, Construction Activity, and Multi-Sector permits <br />as applicable. <br />As private developments and public street and utility improvements are planned, City <br />staff will review the City’s stormwater model for potential stormwater issues in the <br />proposed project area, potential TMDL reduction opportunities, and volume reduction <br />opportunities. If an issue has been identified in the model and/or this Plan, the City <br />will review the potential issue in more detail at that time. Future review will include <br />adding detail to the model with survey quality information to adequately evaluate <br />existing conditions, creating site specific models for proposed conditions to evaluate <br />potential solutions and constructability, and updating this Plan and Subwatershed Maps <br />as necessary if improvements are warranted at that time. <br />For any proposed improvements that require stormwater management facilities to meet <br />governmental regulations, the City will require a Stormwater Maintenance and <br />Easement Agreement that defines maintenance, inspection, and reporting <br />responsibilities to ensure BMPs are maintained at an adequate level.