In 2022, Governor Gavin Newsom released California’s Water Supply Strategy, outlining necessary actions for the state to adapt to a hotter, drier future where the changing climate leaves less water to meet California’s needs.
DWR Updates

On September 16, 2026, a fellowship made from the California Department of Water Resources’ Division of Flood Operations and GEI environmental consultants embarked on a three-day mission within Desolation Wilderness to renovate the existing snow pillow station, Lake Lois, with a new Hinge Fold Tilt-Pole.

It’s been a year since golden mussels were first discovered in California—and the state’s response has been swift and strategic.

DWR is calling on all Californians to understand the risk posed by flooding and how to respond during an emergency during this California Flood Preparedness Week.

In a region known for its vineyards, scenic hills, and delicate ecosystems, accurate and timely data of Napa County’s streams is more than just a technical asset, it’s a lifeline.

Photo Essay: Improving Snowpack Data, the Old-Fashioned Way


