Requiring the storage or processing of materials that are buoyant, flammable, or potentially dangerous to human, animal, or plant life and the construction, reconstruction, or alteration to structures and buildings on or that are moved on the floodplain to be elevated above the flood potential in such a way to prevent future loss of life and property damage, public responsibilities for rescue, and relief, and the installation of public streets, sewer, water and other public utilities or services below the flood potential.