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Committee Moves to Align Stormwater Ordinance with FEMA Flood Insurance Study
Summary
Staff proposed amendments to stormwater definitions at FEMA's request and asked the committee to adopt FEMA's updated flood insurance study and FIRMs for Tulsa County; Joan Gosvick said adoption is required by federal law and supports CRS certification.
City staff presented ordinance changes to Title 11A (Stormwater Management and Hazard Mitigation) and a companion resolution to adopt FEMA's updated flood insurance rate maps (FIRMs).
Joan Gosvick said FEMA "issued a letter of final determination" after a new flood insurance study and that the ordinance changes add definitions from FEMA's model ordinance to support the city's Community Rating System certification. On the map adoption she said, "We are required by federal law to adopt that study," and described the panels and creeks affected (Coulee Creek, Mingo Creek, Brook Hollow, West Branch Heakey Creek, Little Heakey Creek, Fry Ditch 1 and 2). Staff noted the change affects FEMA flood insurance areas (1% floodplain) and not the city's regulatory floodplain; the process carries the emergency clause and must be completed by September 12.
Committee members sought confirmation these were technical definition updates to align with FEMA; staff said the changes were largely model definitions and intended to clarify policies for audits and certification.
