20210304 08484200 1.0 TRUE FEMA 500-year floodplain Areas identified by the Federal Emergency Management Agency (FEMA) as having a 0.2% annual chance of flooding, which is also commonly referred to as the 500-year floodplain. Based on November 2010 FEMA maps, with subsequent "Letters of Map Revision" (LOMR) information incorporated as approved by FEMA. This layer includes all of the areas of the 100-year-floodplain but does not include areas that have reduced flood risk due to being behind a levee.