Water utilities in Altadena and Pacific Palisades are undertaking an arduous process of repressurizing their underground pipelines, testing for contaminants and attempting to flush them out.

Storms now pounding Southern California are raising the specter of more danger for residents—debris flows in areas already ...

Adaptation can also involve changing how and where people live, prohibiting them from rebuilding in areas that repeatedly ...

The Santa Clara Valley Water District says after the dry start to the year, water levels at their reservoirs went from 70% of normal in mid-January to 82% by mid-February.

Researchers at Stanford University developed a new method to measure water levels in the state’s aquifers using readily available seismic data.

A powerful, atmospheric river-driven storm is hitting California today, bringing with it heavy rain, strong winds and feet of Sierra snow. The storm is expected to persist through Friday. Snowfall ...

While some flood survivors have been able to return home, many others are still struggling to recover, rebuild their homes, ...

Atmospheric rivers almost guarantee that San Francisco, with its sewage system, will dump millions of gallons of raw sewage ...

Protesters in the US city of Los Angeles blocked off a major highway on February 2, 2025, in response to President Donald ...

First, President Donald Trump’s order to release water from two California dams raised expert concerns about flooding. Then ...