"100-year flood" means a flood that has a 1% or greater chance of recurring in any given year or a flood of a magnitude equaled or exceeded once in 100 years on the average over a significantly longer period.
415 ILCS 5/3.102
100-year flood
Known as the Environmental Protection Act
The act spans §§ 415-5-1 to 415-5-7-6 (124 sections).
P.A. 96-1395, eff. 7-29-10.
Official source: Illinois General Assembly. Reproduced from public-domain Illinois statutes; confirm against the official source for the current text. Not legal advice.