“Saturated zone” means that part of the earth’s crust in which the interconnected voids are filled with water at a pressure equal to or greater than atmospheric pressure. The term includes “zone of saturation.”

Source. (See Revision Note #1 at chapter heading for Env-Sw 100) #8460-B, eff 10-28-05; ss by #14103, effective 10-23-24 (formerly Env-Sw 104.32) (see Revision Note #2 at chapter heading for Env-Sw 100)