Groundwater.

Groundwater. Water beneath the surface of the ground within a zone of saturation, whether or not flowing through known and definite channels or percolating through underground geologic formations, and regardless of whether the result of natural or artificial recharge. The term includes water contained in quarries, pits and underground mines having no significant surface water inflow, aquifers, underground water courses and other bodies of water below the surface of the earth. The term also includes a spring in which the water level is sufficiently lowered by pumping or other means of drainage to eliminate the surface flow. All other springs are considered to be surface water.

Source

18 CFR § 806.3


Scoping language

None
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