ABSTRACT

The aim of a drought plan is to prepare contingencies for drought conditions. Groundwater is part of that plan which needs to promote sufficient baseflow to small rivers and their associated wetlands. A methodology was developed which comprises:

preliminary hydrogeological and ecological investigations to identify priority basins;

definition of correlations between minimum river flow and piezometric levels;

selection of reference piezometers;

determination of piezometric thresholds for imposing limitations or suspending the use of water.

The Beauce aquifer management strategy is used as an example.