Assertion: soil's clay | /r/HasProperty | impermeable
Facets:
value: relatively
type: DEGREE
value: to water
type: TRANSITIVE-OBJECT
Source sentences:
text: Clay, being relatively impermeable to water, is also used where natural seals are needed, such as in the cores of dams, or as a barrier in landfills against toxic seepage (lining the landfill, preferably in combination with geotextiles).
text: The clay is so impermeable that septic systems wouldn’t percolate, and wells yielded no water.