(A) This chapter’s protection standard is the base flood according to the best data available to the state’s Water Survey’s Floodplain Information Repository. Whenever a party disagrees with the best available data, he or she may finance the detailed engineering study needed to replace existing data with better data and submit it to the state’s Water Survey.
(B) The base flood elevation for each of the SFHAs delineated as an “A Zone” on the Flood Insurance Rate Map, with the effective date of 8-24-1984, shall be the 100-year flood depth calculated according to the formulas presented in Depth & Frequency of Floods in Illinois, published by the U.S. Geological Survey, 1976.
(1994 Code, § 152.25) (Ord. 323, passed 3-28-1983)