arizona water

KNAU | Angela Gervasi

Two major California water agencies have settled a lawsuit that once threatened to derail a multi-state agreement to protect a river that serves millions of people in the U.S. West amid gripping drought.

The Imperial Irrigation District, the largest single recipient of Colorado River water, sued the Metropolitan Water District twice in the past two years. The agencies announced Monday they have reached a settlement that resolves both lawsuits.

Associated Press | Nathan Howard

A federal judge has thrown out a Trump-era rule that ended federal protections for hundreds of thousands of small streams, wetlands and other waterways and left them vulnerable to pollution from nearby development.

Bridgestone Tires

Arizona will lose 18 percent of its Colorado River water allotment next year because of a shortage declared this week. KNAU’s Melissa Sevigny reports, some Arizonans are looking ahead with concern to deeper cuts projected for the future as the river’s reservoirs continue to shrink.


National Park Service

The U.S. Bureau of Reclamation has declared a shortage on the Colorado River that will take effect at the start of next year. KNAU’s Melissa Sevigny reports, the news comes as the river’s major reservoirs drop to historically low levels. 


AP Photo/Jae C. Hong

Lake Mead, the largest reservoir on the Colorado River and in the country, has fallen to its lowest level since it was first filled in the 1930s. KNAU’s Melissa Sevigny reports.


Arizona Department of Water Resources

Governor Doug Ducey signed legislation this week to establish new clean water rules, following a rollback of federal protections for ephemeral waterways last year. KNAU’s Melissa Sevigny reports.

Associated Press | John Locher

Water officials in Arizona say they are prepared to lose about one-fifth of the water the state gets from the Colorado River in what could be the first federally declared shortage in the river that supplies millions of people in the U.S. West and Mexico.