NJ Bill Puts Spotlight on AI Data Centers’ Water Use Risks

New Jersey Moves to Examine AI Data Centers’ Water Impact

Thousands of New Jersey families could soon feel the ripple effects of a new bill advancing in the state Senate. The bill, sponsored by Senator Patrick Diegnan, would require the Department of Environmental Protection (DEP) to study just how much water is being consumed by the state’s rapidly growing number of data centers—many of which power artificial intelligence (AI) tools and services. With water bills already a concern for many, and droughts hitting parts of the country, the question of whether AI is quietly draining local resources is suddenly on lawmakers’ radar.

What Happened

The proposed legislation—known as S4213—passed out of committee on October 8, 2026, with bipartisan support. If signed into law, it would direct the New Jersey DEP to conduct a comprehensive study of water usage by all data centers operating in the state. The study would focus on how these facilities, which include those run by tech giants like Amazon, Google, and Microsoft, draw from local water supplies to cool the powerful computers that enable AI applications.

AI models, especially the large ones powering chatbots and image generators, require massive amounts of electricity and cooling. Most data centers use water-based cooling systems, which means they can consume millions of gallons a year. According to a 2023 report from the U.S. Department of Energy, a single large data center can use as much water annually as a town of 10,000 people. With New Jersey home to more than 60 data centers and more on the way, lawmakers are concerned about the strain on local water infrastructure and the potential for higher costs or shortages for residents.

This bill is part of a growing national trend: states like Oregon and Arizona have already begun scrutinizing the environmental impact of data centers. But New Jersey’s focus on water—rather than just energy—reflects a shift in public concern as more people realize that AI’s hidden costs aren’t just about electricity bills.

How This Affects Everyday People

For most families, water is something you expect to be there when you turn on the tap. But as AI-powered data centers multiply, the competition for local water supplies is heating up. If these facilities are drawing millions of gallons from the same sources as your home, schools, and hospitals, the risk is clear: tighter water restrictions, higher bills, and even shortages during dry spells.

Parents may worry about whether their kids’ schools will face water cutbacks or if local parks and community pools will be affected. Workers in industries that rely on water—like food service, healthcare, or manufacturing—could see their jobs impacted if water becomes scarce or expensive. And for students, the issue is an object lesson in how technology can have real-world consequences far beyond screens and apps.

In towns like Piscataway and Secaucus, where several large data centers already operate, some residents have noticed higher water bills and periodic warnings about conservation. It’s not just a rural or drought-prone issue: even in the Northeast, aging water infrastructure and growing demand can quickly lead to problems. The new bill aims to give the public hard numbers on how much AI is costing them at the tap.

For more on how data centers impact your community, see AI's water and energy footprint and check AI data centers near you.

The Bigger Picture

New Jersey’s move comes as AI’s environmental footprint is coming under sharper scrutiny nationwide. In 2024, Google admitted that its global water use had jumped 20% in just one year, much of it due to the demands of AI. Microsoft’s water consumption rose by 34% between 2021 and 2023, according to its own sustainability reports. These are not small numbers: a single AI query can use as much water as making a cup of tea.

Other states have started to push back. In Oregon, local governments temporarily halted new data center construction over water concerns. In Arizona, residents protested when a new Microsoft data center was approved despite ongoing drought conditions. These incidents show that people are waking up to the fact that AI’s benefits come with real costs to communities, especially when it comes to basic resources like water.

For more background on how much water AI actually uses, see our explainer: how much water AI uses. And for stories of local pushback, see why people are pushing back on AI.

What You Can Do

• Ask local officials questions. At town halls or city council meetings, bring up the issue of data center water use. Demand transparency on how much water local facilities are using and whether it’s affecting your water bills or supply.
• Check if there’s a data center near you. Use resources like the AI data centers near you tool to see if your community could be impacted.
• Conserve water at home. Small changes—like fixing leaks or using water-efficient appliances—can help reduce overall demand and make your community more resilient.
• Stay informed about local legislation. Follow the progress of bills like S4213 and let your state representatives know how you feel about AI’s impact on your water and environment.
• Talk to your kids and neighbors. Make sure others understand that the apps and services we use every day have physical costs, and that community action can make a difference.

The Bottom Line

AI isn’t just changing what we see on our screens—it’s quietly reshaping the world around us, including something as basic as our water supply. New Jersey’s push to study data center water use is a sign that lawmakers are starting to listen to public concern. For everyday people, keeping an eye on these developments, asking tough questions, and making smart choices at home are the best ways to make sure technology works for us—not the other way around.