By IDRA Editorial Team | August 2025 

A Turning Point for a Water-Rich Nation 

France has long been considered a water-rich country. Fed by alpine snowmelt, vast rivers, and aquifers that have supported agriculture, industry, and urban life for centuries, water scarcity was historically viewed as a distant problem. That perception has changed. In the past decade, repeated summer droughts, dwindling groundwater levels, and rising demand have tested the nation’s water security. 

The French government has responded with a decisive shift in water policy. The centerpiece is the Plan Eau 2023–2030, a national strategy to reduce water withdrawals, improve efficiency, and expand the reuse of treated wastewater at an unprecedented scale [1]. For a country that currently reuses less than 1 percent of its treated effluent, the goal is transformative: reach 10 percent reuse by 2030. 

The Scale of the Challenge 

France’s low baseline reuse rate stands in contrast to Mediterranean neighbors like Spain, where reuse exceeds 14 percent [2]. Achieving a tenfold increase will require not just technology deployment but also legal reform, cultural acceptance, and investment in local capacity. 

The Plan Eau targets 1,000 reuse projects to be operational by 2027, serving agricultural, municipal, and industrial users [1]. As of mid-2025, 195 projects have been launched, with 21 already in operation. These range from irrigation schemes for drought-prone vineyards to municipal programs for cleaning streets and parks with recycled water. 

A National Push for Decentralized Solutions 

A core feature of France’s strategy is decentralization. The plan supports modular and mobile treatment units, enabling small towns and rural areas to deploy reuse quickly without waiting for large-scale plant upgrades. Coastal municipalities are also receiving dedicated funding to use treated wastewater instead of discharging it into the sea, reducing both freshwater demand and marine pollution [3]. 

This approach reflects a recognition that water challenges vary by region. Provence-Alpes-Côte d’Azur faces chronic summer shortages, while Brittany experiences seasonal surpluses but struggles with nutrient runoff. The reuse program aims to match solutions to these distinct realities. 

Potable Reuse Breakthrough: The Jourdain Program 

The Jourdain Program in Vendée represents France’s most ambitious step into potable reuse. The project treats wastewater to drinking standards before recharging reservoirs, providing a buffer during summer peaks. When fully operational in 2027, it will supply nearly 3 million cubic meters per year; a lifeline for a region that has faced severe drought in five of the past seven years [4]. 

The program has also been a proving ground for community engagement. Local authorities conducted extensive public outreach, including facility tours and water tasting sessions, to build trust in the safety of reused water. 

Regulation Opens New Sectors 

Between 2023 and 2025, France passed eight regulatory reforms to expand the allowable uses for treated wastewater [5]. These include: 

• Industrial cleaning, including in sensitive sectors such as nuclear power 

• Urban irrigation for parks, gardens, and sports facilities 

• Food industry processes, under strict sanitary controls 

• Agricultural irrigation, with quality standards matched to crop type 

Crucially, the reforms also streamlined permitting, cutting approval times and administrative costs for local projects [6]. 

Safety, Science, and EU Alignment 

Public acceptance hinges on safety. France’s ANSES has developed risk-based guidelines to ensure water quality meets both national health criteria and the EU Regulation on Minimum Requirements for Water Reuse [7]. The standards are backed by advanced monitoring protocols and periodic audits. 

France has also committed to sharing its performance data with other EU states, creating a feedback loop that supports policy refinement at both the national and European levels. 

Data and Transparency as Public Tools 

France has invested in citizen-facing platforms to increase transparency. The Ecowatt de l’eau alert system encourages water-saving behaviors during high-stress periods [8]. Meanwhile, HydroPortail and Vigicrues provide real-time data on river levels, drought severity, and flood risks, enabling citizens and businesses to make informed decisions [9]. 

Why France Matters for Global Water Policy 

France’s pivot to large-scale reuse matters beyond its borders. It demonstrates how a country with historically abundant water can rapidly adapt to scarcity through integrated policy, localized technology, and regulatory reform. For nations just beginning to confront water stress, the French model offers three key takeaways: 

1. Set ambitious national targets that create urgency and attract investment. 

2. Empower local action through modular, adaptable technologies. 

3. Build public trust with open data, strong safety standards, and visible pilot projects. 

Looking Ahead 

By 2030, France aims to have a nationwide reuse network that is as integral to its water system as dams and treatment plants are today. This transformation will not eliminate drought risk, but it will ensure that water scarcity no longer catches communities unprepared. 

While France will not feature as a case study at the 2025 IDRA Reykjavík Summit, its rapid shift from minimal reuse to a comprehensive national program stands as one of Europe’s most ambitious water security pivots. It underscores a truth increasingly recognized worldwide: water resilience is built project by project, policy by policy, and community by community. 

References 

1. Ministère de la Transition écologique. (2023). Plan Eau: 53 measures for water security and reuse. 

2. European Commission. (2023). Water Reuse in the EU: State of Play. 

3. Ministry for Ecological Transition. (2024). Coastal reuse funding for marine discharge reduction. 

4. Vendée Eau. (2024). Programme Jourdain progress report. 

5. French Official Journal. (2023–2025). Decrees on reuse expansion and industrial applications. 

6. Jumelages-Paternariats. (2023). Administrative streamlining for reuse project approvals. 

7. ANSES. (2024). Risk evaluation for treated wastewater reuse. 

8. Ministry for Ecological Transition. (2023). Ecowatt de l’eau drought alert program. 

9. HydroPortail and Vigicrues. (2024). National hydrological data platforms.