Groundwater Body - River Relationship

Transfer of water between a groundwater body and a waterway. In accordance with the water level and the seasons, the body may either feed the waterway or is fed by it, particularly during floods. In karstic areas, this relationship is significant and localised.

We also speak of an interlinked body: a groundwater body close to a waterway, with hydraulic properties which are very closely linked to those of the waterway. The use of such a body causes a drop in the waterway’s flow, either because the body is providing the waterway with less water, or because the waterway starts to recharge the body.