Groundwater

Total volume of external water added to the saturation zone of an aquifer.

Administrative act recognizing the public utility character of an operation planned by a public corporation or on its behalf, after obtaining the population's opinion through a public inquiry. The public utility declaration (DUP) is a prerequisite to expropriation (for public

Part of a coastal aquifer invaded by salt water (usually sea water) between the bottom of the aquifer and a freshwater-saltwater interface, the salt water wedge being under fresh water. The appearance of a salt wedge, beyond a natural low…

Reappearance above ground of water infiltrated in limestone rock in the form of a spring.

All aquatic environments (bodies of water, watercourses, groundwater, wetlands, etc) found on a given territory; the term network explicitly referring to the physical and functional links between these environments.

Depth of the water level in the soil.

Refers to a limestone geological formation in which chemical erosion dominates. More specifically, a karstic watercourse is a surface or subsurface natural waterway with permanent or intermittent flow crossing karstic grounds (made up of compact and soluble limestone) and that may suffer from losses or receive inputs from resurgences.

Aquifer with a free surface and unsaturated zone.