Governor Sherrill signed a law requiring data centers to disclose their peak daily water use to state regulators every six months. It won't show up on your water bill, but it says a lot about who else is drawing from the same pipes as your house.
What The New Law Actually Requires
Senate Bill 3379, which Governor Sherrill signed on August 27 at a public library in South Brunswick, requires every data center operating in New Jersey to file a report with the state Board of Public Utilities twice a year. Each filing has to include total energy consumption, how much of that energy goes to cooling equipment versus running servers, peak daily water use, where that water comes from, and details on any on-site backup power supply.
The bill cleared the Legislature with almost no opposition, passing the Assembly 76 to 3 and the Senate unanimously back in June before Sherrill's signature made it law. It is the fourth piece of a broader data center regulatory push that has also touched electricity rate fairness and prevailing wage rules for construction crews.
Nothing in the law caps how much water or power a facility can use. A data center that wants to draw millions of gallons a day for cooling is still free to do so. What changes is that the number now has to show up in a filing regulators, and eventually the public, can actually see.
Why A Server Farm's Water Use Is A Homeowner's Business Too
Data centers cool their servers largely with water, and a large facility can use as much water in a day as a small town. New Jersey currently has about 644 megawatts of data center capacity spread across roughly 80 sites, and some proposed projects dwarf what's already built. One planned facility in Vineland alone is expected to draw around 300 megawatts, comparable to the output of a small power plant.
Homeowners and data centers usually pull from the same regional water systems and the same aging pipe networks that Plumbarama services every day. When a handful of large industrial users significantly increase draw on a shared system, it can affect pressure, accelerate wear on distribution infrastructure, and factor into the rate cases utilities eventually bring to state regulators to fund upgrades.
That is precisely why nearly 40 New Jersey towns have already passed local bans or moratoriums on new AI data center construction. Local officials cite worries about strained infrastructure and rising utility costs for existing residents as much as they cite noise or land use.
The Backdrop: Water Systems That Were Already Stretched
This reporting requirement did not appear in a vacuum. New Jersey has spent much of 2026 under a statewide drought warning, with state officials repeatedly asking residents to voluntarily cut back on lawn watering and other non-essential use while below-normal rainfall persisted for months. Pennsylvania counties have cycled between drought watches and warnings over the same stretch.
Against that backdrop, a new category of large, steady industrial water users getting closer regulatory scrutiny is a meaningful data point for anyone trying to understand why their own water utility keeps filing for rate increases or why certain neighborhoods see more pressure complaints than others. The reports data centers file won't be broken out by street or zip code, but the aggregate numbers will start giving state planners a clearer picture of where the real demand is coming from.
Figures per NJBIZ and New Jersey 101.5 coverage of S3379's signing, August 27-28, 2026.
5 Things Homeowners Should Take Away From The New Reporting Law
You will never see a data center's water filing on your own bill, but the same shared infrastructure connects both. Here is what actually matters at home.
- Your water system serves more than your block: Municipal and regional water systems allocate capacity across homes, businesses, and increasingly, large industrial users like data centers and warehouses.
- Transparency laws are usually a lagging indicator: Lawmakers write reporting mandates after a resource has already become a political flashpoint, which is exactly what happened here after dozens of towns pushed back on data center growth.
- Drought conditions raise the stakes for everyone on the system: New Jersey's ongoing drought warning means every large water draw, industrial or residential, gets more scrutiny than it would in a normal year.
- Aging pipes fail faster under sustained high demand: Distribution systems built decades ago were not sized for today's industrial water users, and added strain can show up as more frequent main breaks and pressure drops.
- A home water audit is the one control you actually have: You can't vote on a data center's cooling system, but a licensed plumber can check your fixtures, water heater, and service line for leaks or inefficiencies you can fix today.
Frequently asked questions
- Does this law limit how much water a data center can use in New Jersey?
- No. S3379 only requires data centers to report their water and energy use to the Board of Public Utilities twice a year. It does not set any consumption cap or limit.
- Will this change my water bill directly?
- Not directly and not immediately. The law creates transparency data for regulators and municipalities, but any rate impact would come later, through separate utility rate cases that weigh overall system demand.
- Why are so many New Jersey towns opposed to new data centers?
- Local officials have cited concerns about strain on electricity and water infrastructure, along with worries that rising utility costs from serving large facilities could get passed on to existing residential customers.
- What can I do if I'm worried about water pressure or supply where I live?
- Start with your own home. A licensed plumber can check for leaks, aging supply lines, or inefficient fixtures, and can advise on backflow prevention and pressure issues specific to your property.