That is only ~2,000 m^3/day (~2 acre*foot/day). Even if they exclusively used the most expensive source of water, seawater desalination, that would only be ~800 $/day.
Your average almond tree uses 3-4 acre*foot per year [1]. So the yearly water consumption of the data center is ~200 almond trees. Your average almond tree produces ~50-60 pounds per year [2] and ~4500 pounds per hectare (2.5 acres), so that is the water consumption of a tiny 5 acre almond farm producing ~10,000 pounds of almonds per year.
The internet indicates the wholesale price of almonds is ~2 $/pound, so you can either have a data center or 20,000 $ worth of almonds.
[1] https://www.c-win.org/cwin-water-blog/2022/7/11/california-a...
[2] https://wikifarmer.com/library/en/article/almond-tree-harves...