The Federal Emergency Management Agency (FEMA) has issued a Flood Insurance Rate Map or FIRM designating all land areas inside the levee system in the City of Foster City as being in Flood Zone X, defined as outside of a Special Flood Hazard Area 100-year flood. Zone X is further defined as "areas of 500-year flood; areas of 100-year flood with average depths of less than 1 foot or with drainage areas less than 1 square mile; and areas protected by levees from 100-year flood." The City's interior lagoons are designated Flood Zone A, defined as within the 100-year flood with no base flood elevations determined. Areas of the City outside the City's levee system are designated Flood Zone AE, defined as within the 100-year flood with base flood elevations determined. This elevation is indicated on the Flood Insurance Rate Map (FIRM) as 7 feet.

The FIRM for the City of Foster City is indicated on Community Panel No. 060318 0010 C as revised on January 19, 1995, the effective date of the current map. A copy of the map may be reviewed in the Office of the Community Development Department.

If there are further questions on the flood zone designation, please contact FEMA at:

Federal Emergency Management Agency
Federal Insurance Administration
211 Main Street
San Francisco, CA 94104
415-923-7177 (Flood Branch)

Copies of the FIRM can only be obtained from FEMA at:

Federal Emergency Management Agency
Flood Map Distribution Center
Telephone 1-800-358-9616