[1) All new and replacement water supply systems shall be designed to minimize or eliminate infiltration of flood waters into the system;

(2)] New and replacement sanitary sewage systems shall be designed to minimize or eliminate infiltration of flood waters into the systems and discharge from the systems into flood waters;

[3] On-site waste disposal systems shall be located to avoid impairment to them or contamination from them during flooding; and

[4] Electrical, heating, ventilation, plumbing and airconditioning equipment and other service facilities shall be designed and/or located so as to prevent water from entering or accumulating within the components during conditions of flooding.