This chapter's protection standard is the base flood. The best available base flood data are listed below. Whenever a party disagrees with the best available data, the party may finance the detailed engineering study needed to replace existing data with better data and submit it to the state water survey and the federal emergency management agency.
A. The base flood elevation for each of the remaining SFHAs delineated as an unnumbered A zone on the flood insurance rate map of the village shall be according to the best data available to the Illinois state water survey floodplain information repository. When no base flood elevation exists, the base flood elevation shall be the 100-year flood depth calculated according to the formulas presented in "Frequency Distributions And Hydroclimatic Characteristics Of Heavy Rainstorms In Illinois" (bulletin 70), published by the Illinois state water survey, 1989.
B. The base flood elevation for the SFHA of those parts of unincorporated DeKalb County that are within the extraterritorial jurisdiction of the village or that may be annexed into the village shall be according to the best data available to the Illinois state water survey floodplain information repository. (1999 Code § 12.05)
Next Doc