The following standards apply within the regulatory floodplain:
A. Hydraulically equivalent compensatory storage volume will be required for development in a riverine regulatory floodplain and shall be at least equal to the regulatory floodplain flood storage volume displaced multiplied by 1.5 for unincorporated areas and 1.0 within the incorporated areas. The storage volume displaced below the existing 10-year frequency flood elevation must be replaced below the proposed 10-year frequency flood elevation. The storage volume displaced above the 10-year existing frequency flood elevation must be replaced above the proposed 10-year frequency flood elevation. The additional compensatory flood storage required beyond a one to one (1:1) ratio may be placed above or below the 10-year flood elevation.
B. Compensatory storage volume for development in a nonriverine regulatory floodplain area that is also adjacent to a lake shall be equal to the storage volume displaced.
C. Compensatory storage volume requirements for development in a nonriverine regulatory floodplain that is not adjacent to a lake shall be replaced in accordance with the requirements for the loss of depressional storage in subsection 8-4-5-8-2F of this chapter.
D. Compensatory storage areas shall be designed to drain freely and openly to the channel and shall be located adjacent to the development. This standard does not apply to nonriverine regulatory floodplain or the replacement of depressional storage.
E. A recorded covenant running with the land shall be required to maintain the compensatory storage volume in areas modified to provide compensatory storage volume. (Ord. 2016-003, 3-8-2016)