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1 <br /> threshold discharge area.Projects that through a combination of <br /> hard surfaces and converted vegetation areas cause a 0.15 cubic <br /> feet per second (cfs) increase or greater in the 100-year-flow <br /> frequency from a threshold discharge area as estimated using <br /> the Western Washington Hydrology Model or other approved <br /> model and 15-minute time steps. <br /> (d) That portion of any project in which the above thresholds are <br /> stormwater management BMPs in accordance with Minimum <br /> Requirement#5. <br /> If the discharge is to a stream that leads to a wetland, or a wetland that has an <br /> outflow to a stream, both this minimum requirement (Minimum Requirement <br /> #7) and Minimum Requirement#8 shall apply. <br /> H. Minimum Requirement#8: Wetlands Protection <br /> Projects that discharge stormwater into a wetland, either directly or indirectly <br /> through a conveyance system, shall do so in accordance with the City's of <br /> Everett Stormwater Management Manual. <br /> The thresholds identified in Minimum Requirement #6 — Runoff Treatment, <br /> and Minimum Requirement #7 — Flow Control shall also be applied to <br /> determine the applicability of this requirement to discharges to wetlands. <br /> I. Minimum Requirement#9: Operation and Maintenance <br /> A Maintenance and Operations ManualPlan is required for all stormwater <br /> facilities and BMPSs designed and constructed in accordance with this <br /> ordinance. The Maintenance and Operations Manuals shall be developed <br /> in accordance with the City's of Everett Stormwater Management Manual. <br />