Flood hazard maps, or "FIRMs," are used to determine the flood risk to your home or business. The low- and moderate-risk zones are represented on NFIP FIRM maps by the letter "X" or an "X" that is shaded. The inland high-risk zones will be labeled with designations such as "A" "AE" "AO" or "AH". Aiken County designations consist of High Risk A and AE (100-year flood plain), and Low-Moderate X shaded (500-year) or X remainder of county. To see the 1984 FIRMs visit www.FloodSmart.gov. See the Fema Flood Information on Fema's official website.