Section 445A.6711 - Distribution system: Pressure1. A distribution system must be designed to maintain:(a) A minimum pressure of 20 psi at ground level for all service connections during all conditions of fire flow experienced during maximum day demand.(b) A normal working pressure of not less than 40 psi during maximum day demand.(c) A minimum pressure of 30 psi during peak hour demand.2. The zones of pressure of a distribution system must be designed in such a manner that the static pressure at the lowest ground elevation of the zone does not exceed 100 psi. If a zone of pressure may potentially exceed that pressure, the head in the zone must be controlled by the installation of a pressure regulator downstream from the service connection for each user of water in the zone.Nev. Admin. Code § 445A.6711
Added to NAC by Bd. of Health, eff. 2-20-97