Scientists found potentially deadly tire chemicals in California waterways, raising concerns for endangered coho salmon and threatened steelhead trout.

Rain and snow ease drought across the Colorado River Basin, but severe Four Corners flooding forces evacuations as Lake Powell remains just 22% full.

Interior Secretary Doug Burgum responds to Arizona's Colorado River lawsuit in an exclusive KOLD News 13 interview, defending water cuts and discussing future supplies.

A new federal forecast shows Lake Powell could rise 88 feet by September 2027 under unusually wet Colorado River conditions.

A California court appoints a receiver for Havasu Water Company amid water safety violations, service outages and ongoing legal disputes.

Researchers use satellite data to map hidden groundwater pathways in Nevada, offering a new tool for understanding and managing aquifers.