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the best available data, it shall be the responsibility of that party to pay the cost of the required <br /> engineering study needed to replace the existing data with better data. The findings in the study <br /> shall be submitted to FEMA and IDNR/OWR for approval prior to any development of the site. <br /> A. The base flood elevation for the floodplains of the Sangamon River, Long Creek <br /> (East of Big Creek), hong G feek T f b.,uta fy, Long Cfee)rBig Gfeek, Long Creek, <br /> Big Creek, Big Creek Arm of Lake Decatur Spring Creek, South Spfi g Glee' <br /> Spring Creek Tributary, Spring Creek Tributary East, Stevens Creek, Stevens <br /> Creek Tributary A, Stevens Creek Tributary B iFfieids Creek, FfTends tifeek Ditch <br /> and the independence Northeast Drainage Ditch shall be as delineated on the 100- <br /> year flood profiles in the countywide Flood Insurance Study for Macon County, <br /> Illinois, prepared by FEMA, dated Atne 16z011 June 7, 2017. <br /> B. The base flood elevation for each floodplain delineated as an "AH Zone" or "AO <br /> Zone" shall be that elevation (or depth) delineated on the county wide Flood <br /> Insurance Rate Map for Macon County, Illinois. <br /> C. The base flood elevation for each of the remaining floodplains delineated as an"A <br /> Zone" on the countywide Flood Insurance Rate Map for Macon County, Illinois, <br /> shall be according to the best data available from federal, state or sources. Should <br /> no other data exist, an engineering study must be financed by the applicant to <br /> determine base flood elevations. <br /> D. The base flood elevation for the floodplains of those parts of unincorporated Macon <br /> County, Illinois, that are within the extraterritorial jurisdiction of the City, or that <br /> may be annexed into the City, shall be as delineated on the 100-year flood profiles <br /> in the countywide Flood Insurance Study of Macon County, Illinois, prepared by <br /> FEMA, dated june 16, 204- June 7, 2017. <br />