Water and Wastewater Terms Beginning Z

A B C D E F G H I J K L M N O P Q R S T U V W Y Z

zone of saturation

(1) The soil or rock located below the top of the groundwater table. By definition, the zone of saturation is saturated with water. Also see water table. (2) Where raw wastewater is exfiltrating from a collection system pipe, the area of soil that is moistened around the leak point is often called the zone of saturation.