News

We investigated the leaching of ammonium, PFOS, and PFOA from 46 former landfill sites. Further investigation is needed in Westwoud.

Which artwork from our exhibition "Spotlight" will be the public's favorite? You can help decide.

In the manifesto, the drinking water companies and water boards call on politicians to protect water, retain it, and give it space.

Historians Diederik Aten and Lars Boon discussed the storm surge of 1916.

Snowfall is gripping the Netherlands this week. What does that mean for our water management?

Don't feel like watching Home Alone for the 86th time during the Christmas holidays? Then we have three great holiday tips for you!

Our executive committee has adopted the Water Board Regulation 2026. The new regulation will enter into force on January 1.

We have concluded a framework agreement with Beentjes GWW, GMB, and Luttjeboer to maintain our wastewater treatment plants in good condition.

HHNK does not agree with the regional advice given to Minister Sophie Hermans of Climate and Green Growth regarding the improvement of the power grid.

From January 1, 2026, companies and group accommodations will be prohibited from discharging waste into small ditches and waterways.

In 2026, the emphasis will be on setting clear priorities and deploying available resources more effectively.

How can we keep North Holland safe as sea levels rise? We are pondering that question and improving the answer on the coast.

We have entered into an agreement with Verdygo regarding a modular design and construction system for sewage treatment plants.

In his new exhibition Moordenaarsbraak (Murderers' Break), photographer Loek Buter focuses on eleven old dike breaches.

Starting in 2026, all wastewater from businesses must be discharged via a municipal sewer system.