xAI pauses the $80M Memphis water-recycling plant it promised; restart pledged for 2027

When xAI announced an $80 million water-recycling plant for its Colossus campus, it was framed as the answer to a sensitive question: how much of Memphis's sole drinking-water source, the Memphis Sand aquifer, the supercomputer would consume. The plant would take effluent from the city's T.E. Maxson wastewater works, filter it through what Gresham Smith describes as the world's largest ceramic membrane bioreactor, and deliver up to 13 million gallons a day of reuse water to Colossus and TVA's Allen plant — sparing an estimated 5 billion gallons of aquifer water a year.

In April 2026 the project's engineer said the company was on "an indefinite pause while we review the best way to execute this project". Elon Musk responded on X that xAI needed "to focus on finishing Colossus 2 and ensuring it is extremely stable, then will build the water recycling plant". FOX13 reported that Colossus 1 alone needs more than one million gallons of water a day.

Memphis Mayor Paul Young later said SpaceXAI's president had committed to resuming construction no later than Q1 2027. That commitment is reported second-hand and construction had not visibly resumed as of this edition.