Overview
- Hoogheemraadschap Delfland reports the deepest precipitation deficit in the country at about 315 mm and calls the situation in its service area serious.
- Delfland has closed sluices on the Nieuwe Maas and banned use of surface water for irrigation while exploring treated sewage water to top up strategic freshwater reserves if supplies run out.
- Recent dike inspections showed further weakening of peat dikes, which the authority says could threaten the safety of roughly 1.25 million residents if conditions deteriorate.
- External supply has fallen because Rhine inflow at Lobith is around 640 m³/s versus a normal ~1,850 m³/s, and heat-driven evaporation is reducing the usable fresh water that remains.
- Regional coordination through RDO-Noord is meeting weekly to manage IJsselmeer and Markermeer levels, Groningen reports a smaller deficit of about 192 mm, and the established priority order (verdringingsreeks) keeps dike safety and basic services first.