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<br />storm water pondinglretention facility designed to accommodate the increased <br />runoff prior to discharge from the site into public waters or wetlands. <br /> <br />2. Review by City Engineer: All proposed storm water facilities shall be <br />reviewed by the City Engineer and certified for compliance with the City's <br />Surface Water Management Plan, National Urban Runoff Program (NURP) <br />standards, the Minnesota Pollution Control Agency's (MPCA) Urban Best <br />Management Practices, and any established standards of the water management <br />organization having jurisdiction in the project area. <br /> <br />3. Commercial, Industrial, and Residential Development Affectation: All <br />commercial and industrial developments and redevelopments affecting more <br />than five (5) acres of land and all residential developments affecting more <br />than five (5) acres ofland shall: <br /> <br />a. Be served by storm water ponding facilities, on or off site, <br />designed to remove a minimum of ninety percent (90%) of total suspended <br />solids resulting from the runoff from a one inch (1") rainfall event, and <br /> <br />b. Within the development, provide for settling chambers, sumps, dry <br />ponds or other devices to provide for the filtering or settling of fine sands <br />prior to discharge into the City's storm water system. <br /> <br />4. Private Storm Water Facilities: All private storm water facilities shall be <br />maintained in proper condition consistent with the performance standards for <br />which they were originally designed. All settled materials from ponds, sumps, <br />grit chambers, and other devices, including settled solids, shall be removed and <br />properly disposed of on a five (5) year interval. One to five (5) year waivers from <br />this requirement may be granted by the City Engineer when the owner presents <br />evidence that the facility has additional capacity to remove settled solids in <br />accordance with the original design capacity. <br /> <br />5. Inventory Of Private Storm Water Facilities: Upon adoption of this <br />Chapter, the City Engineer shall inventory and maintain a data basis for all private <br />storm water facilities requiring maintenance to assure compliance with this <br />Section. <br /> <br />SECTION 2. Effective Date. This ordinance shall take effect from and after its <br />passage and publication. <br /> <br />PASSED by the City Council of the City of Roseville, this 24th day of April, <br /> <br />2000. <br /> <br />2 <br />