The Bureau of Reclamation will pay $86.7 million toward Tucson's new water treatment plant, which will stretch the city's supplies.

Tucson City Councilmembers voted to approve a proposal to use some $86 million worth of Bureau of Reclamation funding to build the new treatment facility and save Colorado River water as a result.

The Tucson City Council has approved plans to build a toilet-to-tap-water plant with up to $86.7 million in federal funds.

The Bureau of Reclamation today announced it is awarding $388 million in grants for Upper Colorado River Basin water projects. Administered via the Bucket 2 Ecosystem program, the grants will support 42 projects that will restore struggling rivers,

Added length to the southern Arizona border wall may lead to the extinction of a rare desert fish, the Center for Biological Diversity said Wednesday.

It's a rare sight in Arizona. This is how you can see a human-made waterfall created by releasing excess water.

The low levels are fueling an environmental activist's push for limits on Sierra Vista/Fort Huachuca development.

Gov. Katie Hobbs began the 2024 legislative session saying she was “optimistic’’ about working with the Legislature.

A project to bring drinking water to Gallup, the Navajo Nation and the Jicarilla Apache Nation has received a lifeline of $120 million in federal funding for the next year.

The investment supports the efforts of the Colorado River District, the state of Colorado, and a coalition of West Slope governments and water users.

High fences shield the Silverbell Mine, owned by the Asarco subsidiary of Grupo Mexico, just northwest of Tucson. From the air, it a vast upside-down Machu Picchu. Asarco also owns Pima Mine west of I-19 near Green Valley, next to Freeport’s Sierrita.

Some construction leaders expect projects to take longer and cost more. But others said if employers were following the law, effects would be minimal.