Arizona's water chief reports $4 billion for Colorado River conservation is accessible again, but federal agencies haven't ...

A Native American tribe with a powerful water claim had an ultimatum for the Trump administration: Release money to protect ...

The NAIWRSA introduced by Senators Gallego and Kelly seeks to secure clean water access for several Arizona tribes.

In a blistering letter, water officials in Arizona, California and Nevada recently took the federal government to task for failing to plan adequate measures to protect crucial ...

Officials urged the Interior secretary to retract a Biden administration report meant to guide a future deal on how to share ...

The federal agency charged with managing the Colorado River failed to do its job properly when it excluded a viable option ...

If the seven states dependent on the Colorado River don't craft a new operating agreement, the federal government could end ...

Arizona Senators introduce a bill to boost solar energy and economic growth in La Paz County, aiming to create jobs and ...

The Lower Basin states of California, Arizona and Nevada are asking for a fresh look at proposals for sharing the shrinking water supply and changes to Lake Powell and the Glen Canyon Dam.

A bipartisan coalition of Arizona lawmakers on Tuesday reignited efforts to finalize a $5.1 billion water rights settlement for three Native American tribes in the Colorado River Basin.

Shortage on the Colorado River increases the importance of protecting groundwater as the backup supply for cities in central ...