Apple's data center in Maiden, North Carolina has been affected by a chlorine leak that has injured at least five people, reports The Charlotte Observer. The leak was reported at 2:30 p.m. Eastern Time and hazmat crews are said to be on site.

Little else is known about the leak, including its cause, but it follows a fire last week at Apple's former GT Advanced facility in Mesa, Arizona. The two-alarm fire was extinguished shortly after it began and it appeared to originate at the solar panels on the rooftop. No one was injured in that incident.

maidenncdatacenter
Apple's Maiden, North Carolina data center is the company's largest, at 183 acres. Its accompanying solar farm puts out more than 50 megawatts of power at peak efficiency, and Apple began expanding the data center in February of 2014.

Update: Apple has issued a statement explaining that five workers were taken to a local hospital in North Carolina after complaining of feeling dizzy and lightheaded following possible exposure to chlorine fumes. The leak "may have been released during a spill of a chemical used to clean the cooling systems."

Five workers at our Maiden data center were taken to a local hospital following possible exposure to fumes, which may have been released during a spill of a chemical used to clean the cooling systems. All five were discharged and will return to work tomorrow. The spill was quickly contained and poses no threat to anyone else at the facility."

The five individuals have now been discharged from the hospital and will return to work on Tuesday. Hazmat crews have declared the building where the leak occurred safe following air quality tests.

Top Rated Comments

jayducharme Avatar
137 months ago
I thought Tim Cook was doubling-down on leaks.
Score: 23 Votes (Like | Disagree)
gnasher729 Avatar
137 months ago
Why do they use chloride in the datacenter?
One chloride is used by McDonalds to make their fries taste better (natrium chloride aka table salt). But this was said to be a chlorine leak, not a chloride leak.

Chlorine is used to kill bacteria in water. If you have a data center with lots of water cooling then you probably don't want bacteria or algae in the cooling water, because eventually they will affect the pipes containing the water.
Score: 7 Votes (Like | Disagree)
clukas Avatar
137 months ago
not a great week for apple.
Score: 6 Votes (Like | Disagree)
KSouder Avatar
137 months ago
Why is there chlorine gas at a data center?
Chlorine is used to keep the chilled water system clean. Most likely this was the source.
Score: 6 Votes (Like | Disagree)
farewelwilliams Avatar
137 months ago
maybe they thought that putting a swimming pool inside a datacenter would prevent fires.
Score: 5 Votes (Like | Disagree)
l00pback Avatar
137 months ago
This is one reason why I wouldn't store Photos in iCloud.
Redundancy is built into any enterprise data center architecture. That data center could be completely destroyed, and users would suffer very little data loss, if any.
Score: 4 Votes (Like | Disagree)

Popular Stories

iOS 26

15 New Things Your iPhone Can Do in iOS 26.2

Friday December 5, 2025 9:40 am PST by
Apple is about to release iOS 26.2, the second major point update for iPhones since iOS 26 was rolled out in September, and there are at least 15 notable changes and improvements worth checking out. We've rounded them up below. Apple is expected to roll out iOS 26.2 to compatible devices sometime between December 8 and December 16. When the update drops, you can check Apple's servers for the ...
Intel Inside iPhone Feature

Apple's Return to Intel Rumored to Extend to iPhone

Friday December 5, 2025 10:08 am PST by
Intel is expected to begin supplying some Mac and iPad chips in a few years, and the latest rumor claims the partnership might extend to the iPhone. In a research note with investment firm GF Securities this week, obtained by MacRumors, analyst Jeff Pu said he and his colleagues "now expect" Intel to reach a supply deal with Apple for at least some non-pro iPhone chips starting in 2028....
ive and altman

Jony Ive's OpenAI Device Barred From Using 'io' Name

Friday December 5, 2025 6:22 am PST by
A U.S. appeals court has upheld a temporary restraining order that prevents OpenAI and Jony Ive's new hardware venture from using the name "io" for products similar to those planned by AI audio startup iyO, Bloomberg Law reports. iyO sued OpenAI earlier this year after the latter announced its partnership with Ive's new firm, arguing that OpenAI's planned "io" branding was too close to its...
iPhone 17 Pro Cosmic Orange

10 Reasons to Wait for Next Year's iPhone 18 Pro

Monday December 1, 2025 2:40 am PST by
Apple's iPhone development roadmap runs several years into the future and the company is continually working with suppliers on several successive iPhone models at the same time, which is why we often get rumored features months ahead of launch. The iPhone 18 series is no different, and we already have a good idea of what to expect for the iPhone 18 Pro and iPhone 18 Pro Max. One thing worth...
Photos App Icon Liquid Glass

John Gruber Shares Scathing Commentary About Apple's Departing Software Design Chief

Thursday December 4, 2025 9:30 am PST by
In a statement shared with Bloomberg on Wednesday, Apple confirmed that its software design chief Alan Dye will be leaving. Apple said Dye will be succeeded by Stephen Lemay, who has been a software designer at the company since 1999. Meta CEO Mark Zuckerberg announced that Dye will lead a new creative studio within the company's AR/VR division Reality Labs. On his blog Daring Fireball,...
maxresdefault

iPhone Fold: Launch, Pricing, and What to Expect From Apple's Foldable

Monday December 1, 2025 3:00 am PST by
Apple is expected to launch a new foldable iPhone next year, based on multiple rumors and credible sources. The long-awaited device has been rumored for years now, but signs increasingly suggest that 2026 could indeed be the year that Apple releases its first foldable device. Subscribe to the MacRumors YouTube channel for more videos. Below, we've collated an updated set of key details that ...
Apple John Ternus 2019

Will John Ternus Really Be Apple's Next CEO?

Friday December 5, 2025 9:01 am PST by
There is uncertainty about Apple's head of hardware engineering John Ternus succeeding Tim Cook as CEO, The Information reports. Some former Apple executives apparently hope that a new "dark-horse" candidate will emerge. Ternus is considered to be the most likely candidate to succeed Cook as CEO. The report notes that he is more likely to become CEO than software head chief Craig Federighi, ...
Johny Srouji

Apple Chip Chief Johny Srouji Could Be Next to Go as Exodus Continues

Sunday December 7, 2025 10:41 am PST by
Apple's senior vice president of hardware technologies Johny Srouji could be the next leading executive to leave the company amid an alarming exodus of leading employees, Bloomberg's Mark Gurman reports. Srouji apparently recently told CEO Tim Cook that he is "seriously considering leaving" in the near future. He intends to join another company if he departs. Srouji leads Apple's chip design ...
ios 18 to ios 26 upgrade

Apple Pushes iPhone Users Still on iOS 18 to Upgrade to iOS 26

Tuesday December 2, 2025 11:09 am PST by
Apple is encouraging iPhone users who are still running iOS 18 to upgrade to iOS 26 by making the iOS 26 software upgrade option more prominent. Since iOS 26 launched in September, it has been displayed as an optional upgrade at the bottom of the Software Update interface in the Settings app. iOS 18 has been the default operating system option, and users running iOS 18 have seen iOS 18...
iOS 26

Apple Seeds iOS 26.2 and iPadOS 26.2 Release Candidates to Developers and Public Beta Testers

Wednesday December 3, 2025 10:33 am PST by
Apple today seeded the release candidate versions of upcoming iOS 26.2 and iPadOS 26.2 updates to developers and public beta testers, with the software coming two weeks after Apple seeded the third betas. The release candidates represent the final versions of iOS 26.2 and iPadOS 26.2 that will be provided to the public if no further bugs are found during this final week of testing....