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<br />www.pca.state.mn.us • 651-296-6300 • 800-657-3864 • Use your preferred relay service • Available in alternative formats <br />wq-strm2-47 • 9/27/18 Page 5 of 11 <br />Yes N/A Maintenance requirements (continued): <br /> All sediment deposits and deltas must be removed <br />from surface waters (including drainage ways, catch <br />basins, and other drainage systems) and the removal <br />areas restabilized within seven days <br /> Sediment on paved surfaces (e.g., sediment tracked <br />from vehicles) must be removed within one calendar <br />day of discovery <br /> Permanent stormwater treatment BMPs must be <br />inspected and maintained <br /> Notes <br /> <br /> <br />Yes N/A Pollution prevention management measures: <br /> Proper storage, handling, and disposal of construction <br />products, materials, and wastes is required <br /> SWPPP should address fueling and maintenance of <br />equipment or vehicles and spill prevention and <br />response <br /> Limit exterior vehicle and equipment washing to a <br />defined area of the site <br /> The SWPPP should include a description of the <br />containment for concrete and other washout waste <br /> Portable toilets must be positioned so that they are <br />secure <br /> <br /> Notes <br /> <br /> <br />Yes N/A Permit termination conditions: <br /> Permanent uniform perennial vegetative cover must <br />be established at 70% density of its expected final <br />growth <br /> The permanent stormwater treatment system is <br />constructed, meets all requirements, and is operating <br />as designed <br /> All temporary synthetic erosion prevention and <br />sediment control BMPs must be removed <br /> Clean out sediment from conveyance systems and <br />permanent stormwater treatment systems (return to <br />design capacity) <br /> For residential sites, install temporary erosion <br />protection and downgradient perimeter control and <br />distribute the MPCA’s Homeowner Fact Sheet <br /> Submit a Notice of Termination (NOT) to the MPCA <br /> Notes <br /> <br />Design requirements <br />Yes N/A Temporary sediment basins: <br /> If yes: <br />Yes N/A <br /> Basins must provide live storage for runoff <br />from a 2-year, 24-hour storm (minimum <br />1,800 ft3/acre) or, with no calculative <br />minimum, provide 3,600 ft3/acre <br /> Outlets must be designed to remove <br />floating debris <br /> Outlets must be designed to allow complete <br />drawdown <br /> Outlets must be designed to withdraw <br />water from the surface <br /> Outlets must have energy dissipation within <br />24 hours of connecting to a surface water <br /> Notes <br /> <br />