11-1-5: BASE FLOOD ELEVATIONS:
This chapter's protection standard is based on the flood insurance study for the village. If a base flood elevation or 100-year frequency flood elevation is not available for a particular site, then the protection standard shall be according to the best existing data available in the Illinois state water survey's floodplain information repository. When a party disagrees with the best available data, he may finance the detailed engineering study needed to replace existing data with better data and submit it to DWR and FEMA.
   A.   The base flood or 100-year frequency flood elevation for the SFHAs of Des Plaines River shall be as delineated on the 100-year flood profiles in the countywide flood insurance study for Cook County prepared by FEMA and dated August 19, 2008, and such amendments or revisions to such study and maps as may be prepared from time to time.
   B.   The base flood or 100-year frequency flood elevation for each SFHA delineated as an AH zone or AO zone shall be that elevation or depth delineated on the flood insurance rate map of the village effective August 19, 2008.
   C.   The base flood or 100-year frequency flood elevation for each of the remaining SFHAs delineated as an A zone on the countywide flood insurance rate map for Cook County prepared by FEMA effective August 19, 2008, shall be according to the best existing data available in the Illinois state water survey floodplain information repository. (Ord. O-27-08, 6-23-2008)