Golden mussels are a dangerous new invader in California’s water supply. Also, a documentary about the oldest and largest ...

The United States and Mexico have signed an agreement outlining specific steps, funds and a timetable to clean up the ...

While reservoirs are high now, experts warn that California's water outlook can change quickly. Even with encouraging levels, the DWR and other agencies continue to urge water conservation, ...

California’s weather whiplash has left the Golden State in a place of severe uncertainty about its diminishing water supply and increasing human and environmental demands for water. Research ...

The water in California’s mountain snowpack is just shy of average as spring begins, but a winter storm set to hit the Sierra Nevada in the coming days will offer a boost.

California's drinking water has elevated levels of a certain contaminant found to be associated with adverse birth outcomes, causing experts to advise that safe water advisories need to be updated.

California's aquifers gained an estimated 2.2 million acre-feet of water during the last water year. Gov. Gavin Newsom's administration has been promoting efforts to replenish groundwater.

California water managers this week cut in half the amount of water being pumped from the Sacramento-San Joaquin Delta at the state’s plant near Tracy, saying the main reservoir it serves is ...

In Northern California, Lake Shasta, the state’s largest reservoir, is 111% of its average capacity for this date. Lake Oroville, the largest reservoir of the State Water Project, is at 120%.

With the Los Angeles skyline behind it, runoff flows down the Los Angeles River through Vernon on Feb. 6, 2024. A new bill, SB-601, aims to enshrine the Clean Water Act of 1972 into California law ...