Veolia is working with Amazon to supply reclaimed water for cooling at the company's data centres in Mississippi. The project is expected to make the site the first Amazon data centre in the state to use reclaimed water for cooling.
The system will treat effluent from nearby wastewater treatment plants and other available sources for use in industrial cooling processes. Veolia plans to deploy containerised treatment units designed to operate autonomously at the site.
Once fully operational, the installation is expected to reuse more than 83 million gallons of potable water a year. That is broadly equivalent to the annual water use of about 760 US homes and matches the volume the data centre would otherwise draw from local groundwater and drinking water supplies.
The agreement reflects growing pressure on data centre operators to limit strain on local water systems as facilities expand to support cloud computing and artificial intelligence workloads. Cooling remains one of the sector's most closely watched environmental issues, particularly in regions where communities and industry compete for access to water.
Mississippi is the first location named for the reclaimed water project, but the model could be extended to other Amazon facilities where local conditions allow. Veolia says the modular design is intended to make the treatment systems easier to deploy at multiple sites alongside municipal and industrial customers.
Water reuse
The work forms part of Amazon's stated aim to become water positive across its direct data centre operations by 2030. It also fits within Veolia's broader push to deepen its presence in data centre infrastructure through a service it calls Data Centre Resource 360.
That offering is designed to help manage water, waste and energy needs at next-generation facilities. The Mississippi project puts water reuse at the centre of that effort, with treated wastewater replacing higher-quality drinking water in cooling operations.
For Amazon, the move adds to a broader effort to link environmental targets to the expansion of its data centre estate. Large technology groups have faced scrutiny over the local impact of new sites, especially where power and water demand rises alongside construction.
The companies also outlined a separate strand of collaboration around digital tools for water treatment operations. Under that work, Amazon Web Services will support Veolia in developing AI-based systems for real-time process optimisation, predictive maintenance, and inventory and maintenance planning across Veolia's water treatment network.
Those systems will run on Amazon infrastructure and use its artificial intelligence, machine learning, and generative AI tools. Veolia says the work is intended to improve operating efficiency and reduce resource use across its global treatment activities.
Broader tie-up
The Mississippi installation brings together the two parts of the relationship: physical water reuse at a data centre and software-led monitoring of treatment systems. The combination points to a closer relationship between utilities groups and technology companies as operators seek to cut resource consumption without slowing data centre growth.
Veolia is one of the world's largest environmental services groups, with operations spanning water, waste and local energy. In 2025, it served 110 million people with drinking water and 97 million with sanitation, while group revenue reached €44.4 billion.
Amazon Web Services has become a major infrastructure provider for businesses and public sector organisations, and its parent company has been investing heavily in data centres to support cloud and artificial intelligence demand. That expansion has increased attention on how those facilities use land, electricity and water in local markets.
A first facility using the reclaimed water system is expected to be operational in 2027. If the model works as planned, it could offer a template for data centres in places where treated wastewater is available and where operators are under pressure to reduce potable water use.
Estelle Brachlianoff, chief executive of Veolia, described the project as part of a wider shift in how data centres source and manage water. "We are delighted to collaborate with Amazon to secure its water needs in Mississippi while protecting the local community's resources - this is environmental security in action.
"By combining Veolia's water expertise with Amazon's AI technologies, we're transforming data centers into engines of innovation for sustainability. This solution builds on our newly launched offering for data centers," she said.
Amazon said the partnership also extends to the operation of treatment facilities beyond this single project.
Will Hewes, Amazon's Global Water Stewardship Lead, said, "Through our collaborative work on AI applied to water treatment, Veolia will be able to further drive innovation and enhance the efficiency of on-site teams - thanks to automated analytics, actionable recommendations, optimized inventory management, and streamlined maintenance.
"We're pleased to join forces with Veolia to advance more sustainable water use strategies while helping it pioneer more efficient water treatment solutions for customers worldwide."