(A) 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 shall finance the detailed engineering study needed to replace the existing data with better data and submit it to the FEMA and IDNR/OWR for approval prior any development of the site.
(B) The base flood elevation for the flood plains of South Fork Sangamon River, Black Branch Creek and McCoy Branch shall be as delineated on the 100-year flood profiles in the countywide Flood Insurance Study of Sangamon County prepared by the Federal Emergency Management Agency and dated August 2, 2007.
(C) The base flood elevation for each flood plain delineated as an “AH Zone” or “AO Zone” shall be that elevation (or depth) delineated on the countywide flood insurance rate map of the county.
(D) The base flood elevation for each of the remaining flood plains delineated as an “A Zone” on the countywide flood insurance rate map of the county shall be according to the best data available from federal, state or other sources. Should no other data exist, an engineering study must be financed by the applicant to determine base flood elevations.
(E) The base flood elevation for the flood plains of those parts of unincorporated county that are within the extraterritorial jurisdiction of the village, or that may be annexed into the village, shall be as delineated on the 100-year flood profiles in the flood insurance study of the county prepared by the Federal Emergency Management Agency and dated August 2, 2007.
(2009 Code, § 14-1-4) (Ord. 07-02, passed 4-9-2007)