Unsaturated zone definition

Unsaturated zone or “zone of aeration” means the zone between the land surface and the water table.

Unsaturated zone means the zone between the land surface and the water table.

Unsaturated zone or "vadose zone" means the subsurface zone containing water under pressure less than that of the atmosphere, including water held by capillary forces within the soil, and containing air or gases generally under atmospheric pressure. This zone is limited by the ground surface and the upper surfaces of the water table.

Examples of Unsaturated zone in a sentence

• Unsaturated zone monitoring is required at all new regulated units unless the Owner and/or Operator demonstrates to the satisfaction of the Department that such methods of unsaturated zone monitoring cannot provide an indication of a release from the regulated unit.

• Unsaturated zone" means that part of the subsurface where interconnected voids are not all filled with water.

• Unsaturated zone characteristics (i.e., geologic materials, physical properties, and depth to ground water); and (ii) The potential for hazardous waste or hazardous waste constituents which enter the uppermost aquifer to migrate to a water supply well or surface water, by an evaluation of: (I) Saturated zone characteristics (i.e., geologic materials, physical properties, and rate of ground-water flow); and (II) The proximity of the facility to water supply wells or surface water.

• Improvement was computed as the ratio of the orig- inal loop’s execution time to that of the loop after loop splitting.

• Unsaturated zone or zone of aeration--The zone between the land surface and the water table.

More Definitions of Unsaturated zone

Unsaturated zone means the volume between the land surface and the uppermost saturated zone.

Unsaturated zone means the subsurface zone con- taining water under pressure less than that of the atmosphere, including water held by capillary forces within the soil and con- taining air or gases generally under atmospheric pressure. This zone is limited above by the ground surface and below by the upper surface of the zone of saturation or the water table.

Unsaturated zone means that part of the subsurface where interconnected voids are not all filled with water.

Unsaturated zone means the zone between the land surface and the nearest saturated zone, in which the interstices are occupied partially by air.

Unsaturated zone means the subsurface zone containing water under a hydrostatic pressure less than atmospheric, including water held by capillary forces within the soil containing air or gases generally under atmospheric pressure. This zone is limited above by the ground surface and below by the upper surface of the zone of saturation.

Unsaturated zone. (vadose zone) means the subsurface volume between the land's surface and the top of a saturated zone.

Unsaturated zone means the zone between the land surface and the regional water table. Generally, fluid pressure in this zone is less than atmospheric pressure, and some of the voids may contain air or other gases at atmospheric pressure. Beneath flooded areas or in perched water bodies the fluid pressure locally may be greater than atmospheric.