Greenpeace and utilities urge Dutch PFAS ban as tap water exceeds health limit in parts of Utrecht and Wijchen

Discrepancy between standards

Water utility data collected across nearly 200 Dutch extraction sites shows that tap water across the country complies with European Union regulations. The European Union sets a legal ceiling of 100 nanograms of PFAS per liter, a volume roughly comparable to ten drops of printer ink. The Dutch National Institute for Public Health and the Environment (RIVM) applies a stricter guideline of 4.4 nanograms per liter based on scientific research indicating that PFAS chemicals harm the human immune system. Environmental group Greenpeace established a color-coded warning system using the RIVM threshold, designating levels far below 4.4 nanograms as green, elevated readings as orange, and concentrations exceeding 4.4 nanograms as code red. Concentrations surpassing 6.6 nanograms per liter receive a dark red designation.

Municipalities exceeding health limits

Testing data indicates that several communities receive tap water exceeding the 4.4 nanogram threshold. In the municipality of Utrecht, approximately 59,000 residents drink water that surpasses the RIVM health guideline. In the municipality of Alphen aan den Rijn, nearly 3,700 residents in Benthuizen consume tap water containing PFAS above the recommended level. In the municipality of Wijchen, roughly 3,400 residents in Bergharen, Hernen, and Batenburg receive water above the national health benchmark. Both Greenpeace and Dutch drinking water companies have responded to these findings by advocating for a complete national ban on PFAS chemicals.

Elevated risk across regional networks

Water quality varies significantly within single municipal boundaries because supplies originate from distinct extraction sources. In Alphen aan den Rijn, over 110,000 residents across Boskoop, Hazerswoude-Dorp, Hazerswoude-Rijndijk, Koudekerk aan den Rijn, Zwammerdam, Aarlanderveen, and the main town face an elevated risk of future threshold exceedances under code orange. In Nijmegen, more than 94,000 residents drink water in the orange category, while over 95,000 residents in Lent and other sections receive water with minimal PFAS. In Enschede, over 64,000 residents are exposed to code orange water, compared to nearly 98,000 in areas with negligible levels. Similar code orange conditions affect nearly 53,000 residents in Doetinchem and Gaanderen, almost 47,000 residents in Warnsveld and parts of Zutphen, nearly 16,000 residents in Kampen villages including IJsselmuiden and Grafhorst, and 120 residents in Leur. Conversely, over 320,000 residents in Utrecht areas such as Vleuten and De Meern, nearly 41,000 in Kampen, and over 38,000 in Wijchen receive tap water with barely detectable PFAS traces.

Sources of contamination and filtration limits

Drinking water umbrella organization Vewin stated that per- and polyfluoroalkyl substances enter the public supply through multiple pathways. Pollution travels through river systems including the Rhine and Meuse rivers and infiltrates local groundwater reservoirs. Several groundwater protection zones, which operate under strict regulatory safeguards to prevent contamination, have already registered PFAS pollution. Vewin noted that while enhanced treatment facilities could theoretically extract more chemical residue, upgrading purification infrastructure takes considerable time, increases consumer drinking water bills, and lacks long-term sustainability.