Arizona court invalidates groundwater rules that halted Phoenix-area housing, citing failure to follow legal rulemaking procedures.

A new study finds many California groundwater targets may be missed by 2040, even with major cuts in water use across the Central Valley.

A proposal to federalize the Potter Valley Project raises concerns about exporting Eel River water and reshaping Northern California supply.

Drought is spreading across the Colorado River Basin as snowpack melts early and water supply concerns grow heading into summer.

Colorado groups add funding to protect historic Shoshone water rights, helping secure river flows critical to farms, communities, and ecosystems.

Utah faces worsening drought as early snowmelt runoff limits water supply. Streamflows are expected at half of normal, with impacts spreading across the Colorado River Basin.