Geologic formation (usually a clay lens) within the vadose zone that intercepts water and creates a small, localized aquifer above the upper surface of a local zone of saturation that lies above the regional water table.
a saturated zone with in the zone of aeration that overlies a confining layer; a perched aquifer is above the main water table.
an aquifer containing unconfined (unpressurized) ground water held above a lower body of ground water by an unsaturated zone; often a result of clay lenses in the soil strata List of Glossary Terms
An aquifer containing unconfined (unpressurized) groundwater held above a lower body of groundwater by an unsaturated zone; often a result of clay lenses in the soil strata. DIAGRAM