This article seems to focus on one of the less interesting in terms of water usage data centers (for most of us non-locals) because the paper is from Lincoln and that data center is in Lincoln.
The article's data center used 13 mil gal of water, but as they point out another one used up more than 500 mil gallon.
Seemingly much better article (pictures, better comparisons): https://flatwaterfreepress.org/data-centers-can-guzzle-serio...
Apparently Google self-reported the total 700+ million, so the main thing to learn from redacted numbers is how much smaller all the other data centers are compared to the 500 mil gallon one.
Update: in terms of water usage. Not sure whether 500 mil gallon one is larger or just really water-inefficient. That would be a nice thing for some journalist to research...
Update 2: it seems that Google uses water-evaporation cooling in regions that they don't consider water-stressed. Here's a not-so-great reference (scroll down if the text-fragment link doesn't work): https://www.axios.com/2026/06/03/google-pushes-water-standar...
I lived in a town that had two lakes. No water problems for decades. Two year drought brought the lakes down about 30 feet each, so it looked a little bit like Lake Mead. Water rationing in the second year, maybe the tail end of the first, I no longer recall. Brown lawns everywhere
The city finally got permission from the state and the Army Corps to divert water from a nearby river, but only when the river was at a relatively high rate of flow. So functionally what happened was that once the drought broke they were able to refill the lakes faster, and top them up during storms in wet/dry cycles.
Every place is going to have higher and higher odds of becoming water-stressed over the next three decades. Some places more than others. Will the data centers shut down in those situations?
You might think that using 5% of the municipal water supply isn't much but it's a significant fraction of what austerity measures would be able to conserve to retain water through a prolonged drought. In that situation holding water a few extra months until the rains return is the goal.
So the big one uses the same amount of water per year that Lincoln city uses in 10 days?