A. When floodproofing is required by this chapter the methods used must be certified as adequate by a registered professional engineer or architect.
B. Permitted floodproofing systems must conform to the conditions listed below and the floodproofing standards listed in subsection 3-14-15B4 of this chapter for commercial and industrial structures:
1. Electrical Systems:
a. All incoming power service equipment, including all metering equipment, control centers, transformers, distribution and lighting panels, and all other stationary equipment must be located at least two feet (2') above the base flood elevation;
b. Portable or movable electrical equipment may be placed below the base flood elevation if the equipment can be disconnected by a single submersible plug and socket assembly;
c. The main power service line shall have automatic or manually operated electrical disconnect equipment located at an accessible location outside the floodplain or above the base flood elevation; and
d. All electrical wiring systems installed at or below the base flood elevation must be suitable for continuous submergence and may not contain fibrous components.
2. Heating Systems:
a. Float operated automatic control valves must be installed in gas furnace supply lines so that the fuel supply is automatically shut off when floodwaters reach the floor level where the furnace is located;
b. Manually operated gate valves must be installed in gas supply lines. The gate valves must be operable from a location above the base flood elevation; and
c. Electric heating systems must be installed in accordance with the provisions of subsection B1 of this section.
3. Plumbing Systems:
a. Wastewater service lines, except those to be buried and sealed in vaults, must have check valves installed to prevent sewage backup into permitted structures; and
b. All toilet stools, sinks, urinals, and drains must be located so the lowest point of possible water entry is at least two feet (2') above the base flood elevation. (Ord. 3159, 8-20-2012)