Blue-green algae, or cyanobacteria, are naturally occurring in ecosystems. Under certain conditions like warmer temperatures ...

But the state's water experts say at this time of year, they still have to prepare for floods, drought or even both. Oct. 1 ...

According to Anderson, the onset of a La Niña climate pattern adds uncertainty to California’s weather outlook, since it can result in extremes in either direction, from prolonged dry spells to rapid ...

California is entering a new water year with more groundwater data than ever before, as officials prepare for the potential of “La Niña” conditions this fall and continue to monitor ...

The California Department of Water Resources will host a virtual public scoping meeting to discuss an environmental impact report on the State Water Project at noon Friday, Oct. 17. DWR holds several ...

One of the state’s best investigators was on the hunt for golden mussels — a dangerous new invader in California’s waters, with a reputation for destruction. Wearing a collar and a tongue-lolling grin ...

The state’s aquifers gained an estimated 2.2 million acre-feet of groundwater in the 12 months that ended Sept. 30. The amount of groundwater replenishment was significant, but was less than the ...

Proactive fuel mitigation measures near watersheds are a vital step toward protecting water quality as California wildfires grow in intensity and frequency, experts warn.

This story was originally published by CalMatters. Sign up for their newsletters. One of the state’s best investigators was on the hunt for golden mussels — a dangerous new invader in California’s ...

California’s State Water Project will deliver 50% of full water allotments this year, up from 40% last month. Runoff from this year’s ample snowpack is boosting reservoirs. Lake Oroville is now 95% ...

Bid for transparency on consumption evaporates with Newsom veto California Governor Gavin Newsom has vetoed legislation ...