groundwater

Researchers found massive depletion of the region's groundwater, adding more stress to the drought-stricken Colorado River.

A report from the Sierra Club’s Grand Canyon Chapter warns parts of the Upper Verde River could go dry within the next two decades if water use trends continue.

The most productive aquifer in northern Arizona is named after its main water-bearing rock unit — the Coconino Sandstone. The Coconino Aquifer underlies 27,000 square miles west of Flagstaff and into New Mexico and southern Utah.

County supervisors throughout northern Arizona have voiced their support for the Governor's Water Policy Council’s recommendations to modernize the state’s groundwater laws.

A new study shows that over the next 100 years about 4% of the groundwater demand in the Phoenix metro area will not be met without further action.

Twenty-five hundred palm species are known worldwide, yet the Desert Fan Palm is the only one native to the Western U.S. Also called the California Palm, it happens to be the largest of the 14 species in the country and can live up to 250 years.

Winter runoff into the Salt and Verde rivers was the second driest in more than one hundred years of recordkeeping. But the reservoirs that serve the…

A recent report from Arizona State University warns the state is mining groundwater faster than it can be replaced. The report focuses on five areas…

The Tonto National Forest is moving ahead with a controversial federal land exchange. KNAU’s Ryan Heinsius reports, it would pave the way for one of…

A controversial proposed water policy would allow the City of Prescott to deliver water to houses outside the city limits. KNAU’s Melissa Sevigny reports.…