Stockton, CA Environmental Rules: Flood Zones (2026)

44. 060 adopts FEMA's Flood Insurance Study and accompanying Flood Insurance Rate Maps and Flood Boundary and Floodway Maps for the City, dated October 16, 2009, as the minimum basis for mapping special flood hazard areas, with the study and maps on file at the Community Development Department, Building and Safety Division, 345 N. El Dorado Street. 130 requires a development permit, on City-furnished forms, before any construction, manufactured home placement, or other development in a mapped special flood hazard area, and the application must include scaled plans showing the site's elevation, proposed utilities, grading and drainage, the regulatory floodway if applicable, base flood elevation data, and the proposed elevation of the lowest floor.

120 assigns the Community Development Director, as Floodplain Administrator, to review every permit for compliance, confirm other state and federal permits are secured, verify the site is reasonably safe from flooding, and confirm that the proposed development, combined with other existing and anticipated development, will not raise the base flood water surface elevation more than one foot at any point in the City. Building permits cannot rely on a conditional letter of map revision alone; the Floodplain Administrator must have an approved letter of map revision on file first.