A-Zone 1 : The A-zone is an area of special flood hazard without water surface elevations determined. Flood insurance is mandatory in areas with a 1 percent annual chance of flooding
State of California, The Natural Resources Agency (Department of Water Resources) and The United States Army Corps of Engineers (Flood Plain Management Services Program), Attachment B: Glossary, State Wide Flood Management Planning Program (Flood State California), USA 2013. http://www.water.ca.gov/sfmp/resources/Attachment_ B_Glossary.pdf, (ND Emr/ Flood - Amer) {905}