Warning: High levels of blue-green algae at Blauwe Sluis between the Gouden Ham recreational area and Altforst
High concentrations of blue-green algae have been found at the Blauwe Sluis inlet between Gouden Ham and Altforst . The Rivierenland Water Board strongly advises avoiding contact with the water. The water is currently unsuitable for activities such as livestock watering, wading, and dogs. Use of the water may pose risks to people, animals, and agriculture.
At the Blauwe Sluis inlet, located between the Gouden Ham recreational area and Altforst , the Rivierenland Water Board has detected high concentrations of blue-green algae. The blue-green algae are located in the area inside the dikes. Using this water poses risks to people, animals, and agriculture.
Water inflow has been stopped; avoid contact
Blue-green algae concentrations are high at the inlet. We strongly advise against coming into contact with the surface water. This applies to:
- cattle drowning
- dip one's toes in the water
- taking dogs swimming
For questions about the use of surface water in food production, please contact the Netherlands Food and Consumer Product Safety Authority (NVWA). The Rivierenland Water Board continuously monitors water quality.
Why this warning?
Blue-green algae can cause skin irritation, gastrointestinal problems, and poisoning in animals. It can also impair water quality and lead to fish mortality.
Read more about blue-green algae on the Rivierenland Water Board’s webpage on blue-green algae, botulism, and dead fish: .