The Paris Water Authority filed a complaint against unknown individuals on Friday, March 28, seeking to identify those responsible for the pollution of drinking water by per- and polyfluoroalkyl substances, better known as PFAS. These "perennial pollutants," of industrial or agricultural origin, are accused of lasting environmental contamination and posing health risks. The stated objective is to enforce the "polluter pays" principle in order to make producers bear the heavy costs of remediation.
An additional cost estimated at several tens of millions of euros
The president of Eau de Paris, Dan Lert, has cited an additional cost of "tens of millions of euros" to ensure the quality of the water distributed in the capital. "It's not up to users or local authorities to bear such a bill," he told AFP. The water remains compliant with current health standards, according to the company, thanks to the treatments already in place. However, the presence of an unregulated PFAS, TFA, has been detected in the water supply network, prompting the city to take legal action.
The complaint, filed with the Paris judicial court at the request of the mayor Anne Hidalgo, aims to have industrialists recognized for their responsibility in what the mayor calls a "health scandal." "The fight has only just begun," the mayor insisted, also calling on the State to assume its responsibilities in the prevention and repair of environmental pollution.
Growing pressure on the authorities
This initiative also aims to alert public authorities to the extent of the PFAS phenomenon. Eau de Paris accuses the government of not being "up to scratch" when it comes to protecting drinking water. Dan Lert calls for stricter regulation of these substances and better risk anticipation. In particular, he calls for a reform of health controls to include PFAS that are not yet regulated.
Used extensively in industry for their non-stick and waterproofing properties, PFAS are now found in the environment, in soil, air, and even in tap water. The City of Paris's complaint could set a legal precedent in France and spark broader community action against this invisible but persistent pollution.