Last checked: October 22, 2026

Will a nearby data center affect my well?

Short answer: it depends on where the data center gets its water and how it's built, and for most sites nobody has published a study that answers the question. Most U.S. data centers buy water from a public water system rather than pumping their own groundwater. Some, though, have drilled or proposed their own wells, and construction can involve pumping groundwater out of the ground too. Here's what's documented, how to find out what a specific project plans, and how to record your well's condition now so you have something to compare against later.

How data centers use water, in one minute

Servers make heat. Many large data centers remove it with evaporative cooling, which uses less electricity but consumes water. Others use air cooling or closed loops that recirculate the same water, which use little or no water on site but more electricity.³² Power plants also use water to make the electricity a data center draws. A national estimate put that indirect water at about 12 times the water data centers used on site in 2023.²

The data centers and water overview has the numbers, the cooling types and the permits in more detail.

Do data centers pump groundwater?

Usually not directly. A July 2026 Congressional Research Service report says public water systems supplied an estimated 97% of the on-site water used by U.S. data centers in 2025, with only a few supplying themselves from groundwater or surface water.¹ Minnesota's DNR has noted the same pattern: some data centers get water from a city system, which means they don't need a state water-use permit of their own.⁴

But some do, or plan to. Documented examples:

• Pima County, Arizona (Project Blue). After the City of Tucson rejected the project and the use of city water, a company tied to the developer got state approval for two wells under existing groundwater rights totaling 96.5 acre-feet a year (about 31 million gallons). The developer says the site will switch to closed-loop air cooling and use about 15,000–20,000 gallons a day, mainly for restrooms, kitchens and fire suppression.⁵
• Richland Parish, Louisiana. CRS reports that a proposed data center there plans to use groundwater from the Mississippi River Alluvial Aquifer for cooling.¹
• Millard County, Utah. County planning minutes for a proposed data center and power plant near Delta say the developer has metered its wells, and the recommended permit conditions include a water management plan showing no adverse impact to existing water rights.⁶
• St. Joseph County, Indiana. Amazon and General Motors signed an agreement with county bodies limiting their combined use to 24 million gallons a day from the Kankakee Aquifer.⁷

Even when a data center buys city water, that city may itself pump groundwater, so a large new customer can still raise demand on the local aquifer. The size of any effect depends on the aquifer and how much is pumped.³

Can pumping lower water in nearby wells?

It can. USGS explains that pumping lowers the water level at the pumping well and around it, forming a "cone of depression." When those cones overlap, wells interfere with each other, and a well can be pumped so hard that nearby wells drop too.⁸⁹ The National Ground Water Association (NGWA), a groundwater industry and scientific group, says data center pumping can lower groundwater levels, but whether it affects neighbors depends on the pumping rate, how long it runs, recharge, other users and the aquifer itself. In some aquifers the effect on neighboring wells may be small or unmeasurable.³

Construction is a separate issue. Large sites sometimes pump groundwater out of the ground ("dewatering") so they can dig foundations and lay pipe.¹⁰⁷

Documented cases

These are the cases we could source to a news organization or agency. In each one, the cause of the problem was either disputed or still under investigation when we checked.

Newton County, Georgia (Meta, Stanton Springs). Beverly and Jeff Morris, whose home is on a well near Meta's data center, told The New York Times that months after construction began in 2018, sediment built up in their water, their pressure fell to a trickle, and appliances failed. They suspect construction affected the groundwater. Meta said a well study it commissioned found it "unlikely" that its data center affected groundwater in the area.¹⁰ Meta also told WSB-TV that groundwater flows away from the properties and that all the water the data center used came from the local utility, not groundwater.¹¹ In 2026 four families, including the Morrises, sued Meta. The suit says blasting, excavation and land clearing let sediment into the aquifer. Meta disputes the claims.¹²¹¹

New Carlisle, Indiana (Amazon and GM construction). In 2025, after residents complained their wells were losing water, Indiana's DNR investigated residential wells near the Amazon data center and GM plant construction. For three wells near Hudson Lake, DNR found groundwater levels "consistent with historic levels" and concluded construction was not the cause. Three wells east of New Carlisle were still under formal investigation when the story ran. The companies had committed to installing monitoring wells, and the county was adding more.⁷

St. Charles, Missouri (proposed "Project Cumulus"). The proposed site sat inside the city's Elm Point well field and wellhead protection district. The planning commission approved a site plan but, by one vote, refused to recommend a permit to store hazardous substances there, including about 1 million gallons of diesel in 150 tanks.¹³¹⁴ This one was about protecting a public water supply rather than private wells.

We didn't find a published, independent study showing that a data center's operation dried up neighbors' private wells. That doesn't mean it can't happen. It means the cases are few, recent and mostly unresolved.

How to find out what a proposed data center plans

Projects often arrive under code names, and Minnesota's DNR says local officials sometimes hear only about "an industrial water user."⁴ Some places to look:

1. County or city planning and zoning. Rezoning, site plan and conditional use applications go to public hearings. Ask for the water source, the expected average and peak daily use, and the cooling design. NGWA suggests communities ask for water demand projections, a hydrogeologic assessment, a monitoring plan and a drought contingency plan.³
2. The water utility. If the project will buy city water, the utility's board or council will usually approve the service agreement. Some agreements limit what's disclosed.¹
3. State groundwater permits. If the project drills its own high-capacity wells, it usually needs a state permit. Thresholds vary. Examples:
   • Georgia: a permit from EPD to withdraw more than 100,000 gallons a day of groundwater; the agency gives notice of its proposed action, and permits can be contested.¹⁵¹⁶
   • Minnesota: a DNR permit to withdraw more than 10,000 gallons a day or 1 million gallons a year, and a preliminary assessment before drilling such a well. Water from a city system is exempt.¹⁷ A 2025 law adds a pre-application review for data centers using over 100 million gallons a year, but those early talks are nonpublic data.¹⁸
   • Texas: groundwater generally follows the "rule of capture," but the state's groundwater conservation districts permit most new wells and can set spacing and production limits.¹⁹²⁰ Find your district through the Texas Water Development Board.²¹
   • Arizona: inside an Active Management Area, new wells for Project Blue had to be tied to existing groundwater rights, and use must be reported to the state every year.⁵
4. State reporting laws. Utah now requires new large data centers (over 10,000 sq ft and 75 acre-feet a year or more) to report to the Division of Water Rights before construction and every year after, and it publishes the reports.²² New Jersey's 2026 law requires reports of peak daily water use and water sources twice a year.²³
5. Your state well program. Who regulates private wells explains how to find it.

How to protect yourself now

Before a project starts is the best time to document your well. If a problem shows up later, a "before" record makes it much easier for a contractor or state agency to tell what changed. The full testing checklist, including which extra tests USGS research supports and how to keep records, is in Data centers and water testing. For any large project (quarry, pipeline, gas well, highway), see how to document your well before nearby construction, and to look up permit applications in your state, see who regulates big groundwater pumpers.

1. Find your well log. It records depth, casing and often the water level when the well was drilled. Many states have online databases; see your state page.
2. Have the static water level measured. That's the water level when the pump hasn't run for a while. Ask a licensed well contractor to measure it and do a flow (yield) test, and write down the date. Levels move with pumping, recharge and the season, and they can fall a lot in a drought, so a single reading has limits. Readings in the same season each year are more useful.⁹
3. Test your water quality now. EPA recommends testing every year for total coliform bacteria, nitrates, total dissolved solids and pH, and testing right away if taste, odor or color changes.²⁴ For a baseline, consider adding the contaminants common in your area, plus turbidity or sediment if you're near heavy construction. Use a state-certified lab and keep the reports, and compare your numbers in the Well Test Results Checker. See how often to test.
4. Keep records. Keep pump repair invoices, photos of any sediment, and notes on pressure changes with dates.
5. Comment while you can. Go to the planning hearings and any state permit comment period. Ask whether the permit will require monitoring wells near homes and what happens if nearby wells are affected.³
6. Know your state's well-interference rules. They vary a lot. Indiana, for example, lets owners of small wells file a written complaint with the DNR if nearby high-capacity pumping (100,000+ gallons a day) causes their well to fail. If the state confirms it, the pumper must provide water, restore the well or limit pumping. Wells drilled after 1985 have to meet construction standards to be covered.²⁵ In Texas, by contrast, the rule of capture has historically left neighbors with little remedy outside district rules.¹⁹

What isn't known

• How much groundwater data centers use in total. CRS says comprehensive, public information on data center water sources doesn't exist.¹
• What a specific project will use. Use depends on size, cooling design and climate, and some agreements and state pre-application talks are confidential.¹¹⁸
• Whether the Georgia and Indiana problems were caused by data center work. Georgia is in court, and Meta disputes the claims.¹² Part of Indiana's investigation was still open when it was reported.⁷
• Long-term effects. Most hyperscale campuses are recent. NGWA recommends ongoing monitoring of groundwater levels because effects can build over time and across a basin.³

Frequently asked questions

Will a data center dry up my well? Not necessarily. Most buy city water. Where one pumps its own groundwater, the effect on nearby wells depends on the aquifer, the pumping rate and other users, and it can range from none measurable to significant.¹³

The data center will use city water. Should I still pay attention? Yes, if your area's public supply also comes from groundwater or is already tight. In Newton County, Georgia, the water authority said Meta's data center uses about 10% of the county's daily water, and a report projected a county water deficit by 2030.¹⁰

Can construction affect my well even if the data center never pumps groundwater? Construction dewatering can lower water levels nearby, which is why Indiana investigated wells near the New Carlisle sites.⁷ In Georgia, homeowners claim blasting and excavation sent sediment into their wells. Meta disputes that.¹²¹¹

Who do I call if my well changes? A licensed well contractor to diagnose the well, your local health department about water quality, and your state water-rights or groundwater agency if you suspect nearby pumping.²⁵²⁴

Should I test before the project starts? A baseline test and a dated water-level reading before work begins give you something to compare against later. Keep the lab reports.

Related guides

• How to document your well before nearby construction or heavy pumping
• Who regulates big groundwater pumpers? Finding permit applications near you
• Data centers and water testing: a baseline for your well
• Data centers and water: how much they use, where it comes from, and the rules
• How data centers treat cooling water
• How a private well works
• Who regulates private wells?
• Buying a home with a well
• How often should you test a private well?