§ 48-55.   Water System 
General. Every sink, lavatory, bathtub or shower, drinking fountain, water closet or other plumbing
fixture shall be properly connected to either a public water system or to an approved private water
system. All kitchen sinks, lavatories, laundry facilities, bathtubs and showers shall be supplied with hot
or tempered and cold running water in accordance with the North Carolina Plumbing Code. 
Contamination. The water supply shall be maintained free from contamination, and all water inlets for
plumbing fixtures shall be located above the flood-level rim of the fixture. Janitor sink faucets and other
hose bibs or faucets to which hoses are attached and left in place, shall be protected by an approved
atmospheric-type vacuum breaker or an approved permanently attached hose connection vacuum
Water Heating Facilities. Water heating facilities shall be properly installed, maintained and capable of
providing an adequate amount of hot water to be drawn at every required sink, lavatory, bathtub, shower
and laundry facility at a temperature of not less than 110°F (43°C). A gas-burning water heater shall not
be located in any bathroom, toilet room, bedroom or other occupied room normally kept closed, unless
adequate combustion air is provided. An approved  combination temperature and pressure-relief valve
and relief valve discharge pipe shall be properly installed and maintained on water heaters.