EPA’s new PFAS strategy supports cleanup technology testing, research grants and practical guidance for water systems facing contamination.

Central Arizona Project seeks to join a Colorado River lawsuit, challenging federal operating rules while pursuing an agreement with California and Nevada.

A new Arizona bill would transfer the San Carlos Irrigation Project’s aging electric system while keeping its water operations intact.

Rep. Paul Gosar invited Interior Secretary Doug Burgum to Arizona to see firsthand how proposed Colorado River water cuts could affect the state.

Scientists found potentially deadly tire chemicals in California waterways, raising concerns for endangered coho salmon and threatened steelhead trout.

Rain and snow ease drought across the Colorado River Basin, but severe Four Corners flooding forces evacuations as Lake Powell remains just 22% full.