A natural body of water bordered by reeds and vegetation, with hills in the background, illustrating the SUEZ article on the six proposals from the 2025 Giverny Forum for sustainable water management—a working group in which Thibault Lamarque, founder of Castalie, participates.
© SUEZ

SUEZ Corporate Content — Group News · November 12, 2025 · Published by the SUEZ Editorial Team

At the 2025 Giverny Forum, SUEZ and BNP Paribas—at the initiative of the Cercle de Giverny—presented six proposals for sustainable and innovative water management. The working group brought together major companies, institutions, and NGOs, including Castalie, represented by its founder and president, Thibault Lamarque. As droughts, emerging pollutants, and conflicts over water use disrupt the water cycle, this collective effort highlights the levers for action—and, for professional applications, the role of microfiltered water solutions.

Key takeaways

  • SUEZ, a French environmental services group, and BNP Paribas presented six proposals for sustainable water management at the 2025 Giverny Forum.
  • The working group was co-chaired by Charlotte Migne, Group Director of Sustainable Development at SUEZ, and Nathalie Jaubert, Head of ESG Strategy at BNP Paribas.
  • Castalie, represented by its founder and president, Thibault Lamarque, was among the members of the working group, alongside L’Oréal, Michelin, Pernod Ricard, Saint-Gobain, EDF, WWF France, and Paris Dauphine University. Thibault Lamarque’s participation in this working group positions Castalie the dialogue on sustainable water management, alongside major industrial groups and environmental NGOs.
  • The proposals call, in particular, for a change in the water sector’s financing model and for placing water at the center of climate adaptation policies.
  • One proposal specifically targets the fight against emerging pollutants such as PFAS and microplastics through transparency in water quality data.
  • The proposals also call for more inclusive river basin governance and for water to be designated a “Major National Cause.”
  • In professional settings, on-site microfiltration directly addresses several issues raised at the Forum: it reduces the need for bottled water and incorporates activated carbon treatment, which helps remove chlorine and certain contaminants, including PFAS (data Castalie).

Source: SUEZ, Group News, November 12, 2025 — published by the SUEZ editorial team. Read the original article

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