(a) The following floodproofing measures may be required without limitation because of specific enumeration:
(1) Anchorage to resist flotation and lateral movement.
(2) Installation of watertight doors, bulkheads and shutters, or similar methods of construction.
(3) Reinforcement of walls to resist water pressures.
(4) Use of points, membranes or mortars to reduce seepage of water through walls.
(5) Addition of mass or weight to structures to resist flotation.
(6) Installation of pumps to lower water levels in structures.
(7) Pumping facilities or comparable practices for subsurface drainage systems to relieve external foundation wall and basement flood pressures.
(8) Construction to resist rupture or collapse caused by water pressure or floating debris.
(9) Installation of valves or controls on sanitary and storm drains which will permit the drains to be closed to prevent backup of sewage and storm waters into the buildings or structures. Gravity drainage of basements may be eliminated by mechanical devices.
(10) Location of all electrical equipment, circuits and installed electrical appliances in a manner which will assure that they are not subject to contact with flood water and to provide protection from inundation by the base flood.
(11) Location of any structural storage facilities for chemicals, explosives, buoyant materials, flammable liquids or other toxic materials which could be hazardous to public health, safety and welfare in a manner which will assure that the facilities are situated at elevations above the regulatory flood protection elevation, or are adequately floodproofed to prevent flotation of storage containers, or damage to storage containers which could result in the escape of toxic materials into floodwaters.
(b) A relief to the elevation or dry floodproofing standards may be granted for accessory structures (e.g., sheds, detached garages) containing no more than 576 square feet and a value of no more than two thousand five hundred dollars ($2,500). Such structures must meet the provisions and the following additional standards:
(1) They shall not be used for human habitation.
(2) They shall be constructed in accordance with this section;
(3) They shall be constructed and placed on the building site so as to offer the minimum resistance to the flow of flood waters;
(4) They shall be firmly anchored to prevent flotation;
(5) Service facilities such as electrical and heating equipment shall be elevated or floodproofed to or above the level of the base flood elevation.