Perched water definition

Perched water means a localized body of groundwater that overlies, and is hydraulically separated from, an underlying body of groundwater.

Perched water means water that accumulates above an aquitard that limits downward migration where there is an unsaturated interval below it, between the aquitard and the zone of saturation.

Perched water means subsurface water that occurs beneath the ground within the zone of aeration wherein the subsurface water has encountered a restrictive impervious stratum typically separating it from the main water table or groundwater source.

Examples of Perched water in a sentence

• Perched water should be adequately characterized and dedicated monitoring wells for perched water may be appropriate.

• Perched water table: the upper limit of a zone of saturation that is perched on an unsaturated zone by an impermeable layer, hence separating it from the main body of ground water (the saturated zone).

• Perched water may be a significant barrier to downward migration of oil, and may represent the most likely horizontal pathway, and storage area for discharged oil.

• Perched water bodies can supply usable quantities of water to springs or wells.

• Perched water is found in areas where low-permeability rocks impede the downward movement of ground water sufficiently to allow a perched water body to develop.

• Perched water can occur in areas where low-permeability rocks impede the downward movement of ground water sufficiently to allow a saturated water body to develop over unsaturated rocks (fig.

• Perched water – Water that accumulates above an aquitard that limits downward migration where there is an unsaturated interval below it, between the aquitard and the zone of saturation.

• Perched water zones form33 where downward-moving moisture accumulates on top of less-permeable soil lenses (silt or clay) or34 highly cemented calcic horizons.

• Perched water was identified above silt layers in monitoring well MW-4, indicating the unit locally acts as an aquitard.

• Perched water identified during drilling is summarized in Table 3.1The highest perched water was noted in MW-3 at elevation 361 feet1.

More Definitions of Perched water

Perched water means water in a local zone of saturation held above the main body of groundwater by a relatively impermeable stratum. (Water in this zone is generally unpotable.)

Perched water means water that has become separated from the main ground water source by an impermeable layer of stratum and is capable of being recharged.

Perched water means a localized body of groundwater that overlies, and is

Perched water or “Perched Water Table” means a subsurface, discontinuous saturated lense with

Perched water means a localized body of groundwater that overlies, and is hydraulically sepa- rated from, an underlying body of groundwater.