Arizona faces major water cuts threatening chip factories and desert communities
A new federal plan will cut more than a quarter of Arizona's Colorado River water, endangering semiconductor plants and increasing costs for households.
Starting in 2027, Arizona will lose roughly 760,000 acre-feet of Colorado River water annually, the steepest reduction imposed on any downstream state. This loss comes as the state hosts expanding semiconductor facilities from TSMC and Intel, which together use millions of gallons of ultra-pure water each day to produce AI chips. Although agriculture dominates water use in Arizona, the fast-growing chip sector is expected to increase demand.
Phoenix and Maricopa County rely partly on groundwater, yet surface water still supplies about 40% of their needs, prompting plans for additional wells and storage. City leaders, including Mayor Kate Gallego, argue the cuts are unfair and seek further federal assistance, while experts warn that higher water rates will affect both residents and manufacturers alike. TSMC has pledged to boost water recycling to 90% once its reclamation plant is complete, but the broader shortage threatens the state's role in the national chip strategy.
Why it matters
Reduced river water threatens U.S. chip production and could raise household water bills across Arizona.
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