Netherlands faces severe drought and water management debates

The Netherlands is experiencing an exceptionally dry year, with rainfall deficits reaching approximately 300 millimeters in August 2026. While recent rain has benefited topsoil, grass, and shallow-rooted crops, deeper soil layers and groundwater levels remain critically low. Major rivers, including the Rhine, have also seen historically low discharge rates.

In response to ongoing water scarcity, a debate is intensifying regarding the use of effluent as an alternative water source for greenhouse horticulture. While a collective water treatment plant in Hoek van Holland utilizes an advanced purification step to remove pesticides and medicinal residues, the long-term use of effluent for ornamental and food horticulture is still under investigation. Health authorities, including the GGD and RIVM, have been asked to advise on the safety of such water use.

Regional water boards are managing the crisis through various measures. Hoogheemraadschap Hollands Noorderkwartier has decided not to escalate irrigation bans, citing the effectiveness of current measures, while Waterschap Hollandse Delta reports improving conditions near the Brielse Meer, allowing for limited shipping through the Voornse Sluis.