California water news

PRESS RELEASE: Despite New Water Rules, One of the Klamath’s Most Important Tributaries, the Scott River, Is Running Dry

October 1, 2026

Press release from Quartz Valley Indian Reservation, Friends of the River. Communities United for Water Protection, Environmental Protection Information Center,...

DWR completes major rehabilitation of Oroville Dam’s River Valve Outlet System

Department of Water Resources (DWR)

Water project operations

October 1, 2026

From the Department of Water Resources: The California Department of Water Resources (DWR) announced today the completion of a $235...

RIDGECREST: IWVGA and Water District to develop residential water loss relief program

Indian Wells Valley

Groundwater News

October 1, 2026

Press release from the Indian Wells Valley Groundwater Authority The Indian Wells Valley Groundwater Authority board voted unanimously to authorize...

NOTEBOOK FEATURE: Uninvited guests: Protecting California from invasive species

Maven

Ecosystems

September 30, 2026

Experts explain how prevention, early detection, and coordinated response can help protect California’s ecosystems, waterways, agriculture, and communities. Invasive species...

UC SANTA CRUZ: New detection technique advances early warnings for toxic algal blooms

UC Santa Cruz

Water quality

September 30, 2026

UC Santa Cruz researchers use passive resin samplers to track chemical cues, extending predictive lead time for harmful algal blooms...

NOTEBOOK FEATURE: Can hatchery reforms help California’s troubled salmon?

Robin Meadows

Fish and wildlife

September 28, 2026

By Robin Meadows Rivers in the Central Valley are so degraded by dams and water diversions that the tens of...

REPORT: How much water do data centers use? And why does it matter?

Pacific Institute

Planning and management

September 28, 2026

By Heather Cooley and Morgan Shimabuku, Pacific Institute Growth in Artificial Intelligence (AI) and other cloud-based computing services is driving...

YOUR INPUT WANTED: Farmland Conversion in the Delta: Protecting Agriculture as Part of the Coequal Goals

Delta Protection Commission

Agriculture Reports

September 28, 2026

From the Delta Protection Commission: Public comment opens today on the Delta Protection Commission’s draft report, “Farmland Conversion in the...

YOUR INPUT WANTED: Effects on Fish from Long-Term Operations of Central Valley Project and State Water Project Independent Scientific Peer Review

Maven

Water project operations

September 28, 2026

From the Delta Stewardship Council: At the request of the U.S. Bureau of Reclamation, the Delta Science Program is facilitating...

RESEARCH ARTICLE: Reducing uncertainty in groundwater models using airborne geophysics

American Geophysical Union

Groundwater News Research article

September 28, 2026

Scientists present a probabilistic framework for exploiting airborne geophysical data for groundwater model parameterization and apply it to the Scott...