The phreatic zone, or zone of saturation, is the area in an aquifer, below the water table, in which relatively all pores and fractures are saturated with water.
Its opposite is the unsaturated vadose zone above the water table—aquifer.
The phreatic zone size and depth may fluctuate with changes of season, and during wet and dry periods.
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Famous quotes containing the word zone:
“There was a continuous movement now, from Zone Five to Zone Four. And from Zone Four to Zone Three, and from us, up the pass. There was a lightness, a freshness, and an enquiry and a remaking and an inspiration where there had been only stagnation. And closed frontiers. For this is how we all see it now.”
—Doris Lessing (b. 1919)
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