A. An affirmative decision shall not be issued by the Zoning Hearing Board within the Floodway subdistrict if any increase in the one-hundred-year-flood level would result.
B. Affirmative decisions shall only be issued by the Zoning Hearing Board upon a determination that the granting of an appeal will not result in increased flood heights, additional threats to public safety or extraordinary public expense, create nuisances, cause fraud on or victimization of the public or conflict with existing local laws or ordinances.
C. Affirmative decisions shall only be issued upon determination that it is the minimum necessary, considering the flood hazard, to afford relief.