Assertion: aquifer's layer | /r/HasProperty | permeable
Facets:
value: very
type: DEGREE
value: practically
type: DEGREE
Source sentences:
text: The yellow layer is very permeable and would make an ideal aquifer.
text: In many locations, the aquifer is overlain, in the vadose zone, with a shallow layer of caliche that is practically impermeable; this limits the amount of water able to recharge the aquifer from the land surface.
text: The yellow layer is very permeable and would make an ideal aquifer.
text: The yellow layer is very permeable and would make an ideal aquifer.
text: If such layers are large enough and impermeable enough, the water beneath them is said to be 'locally confined' or 'semi-confined,' and the water on top of them is said to be 'perched.'