COURTHOUSE NEWS: EPA pushes back on drinking water fluoridation regulation

Courthouse News Service

Policy and regulation

March 4, 2026

The EPA claims a federal judge “commandeered” a case when he determined the agency needed to investigate safe fluoride levels...

COURTHOUSE NEWS: Ninth Circuit rebuffs EPA’s relaxed freshwater pollution limits

Courthouse News Service

Policy and regulation

March 4, 2026

Easing the amount of cadmium allowed under the Clean Water Act is an agency action, so the EPA should have...

DAILY DIGEST, 3/3: How water managers are adapting to a smaller Sierra snowpack; Conservation groups sue feds over Delta water operations; A look at current hydrological conditions; CA urges stronger legal review in Post-2026 Colorado River Plan; and more …

Maven

Daily Digest

March 3, 2026

[cmtoc_table_of_contents] Several news sources featured in the Daily Digest may limit the number of articles you can access without a...

SIERRA NEVADA ALLY: How are water managers adapting to a smaller Sierra snowpack?

Sierra Nevada Ally

Climate change

March 3, 2026

Warming winters are reshaping runoff. With less snow to rely on, water managers are navigating a future defined by rain,...

COURTHOUSE NEWS: Conservation groups sue feds to save fish from California water flows

Courthouse News Service

Water project operations

March 3, 2026

The groups claim that the U.S. Bureau of Reclamation has failed to abide by restrictions on the harming, trapping or...

STATEMENT: California submits comments on Colorado River EIR, reiterates commitment to collaborative, durable solutions that equitably distribute risk and protect the river

Colorado River Board of California

Colorado River

March 3, 2026

From JB Hamby, Colorado River Commissioner, State of California Today, California submitted comments on the Draft Environmental Impact Statement for...

DWR: Video: Georgiana Slough Effectiveness Study

Department of Water Resources (DWR)

Fish and wildlife

March 3, 2026

From the Department of Water Resources: DWR is leading the Georgiana Slough Effectiveness Study in partnership with UC Davis. This...

EOS: Future Hotspots of Atmospheric Rivers

American Geophysical Union

Hydrology

March 3, 2026

Atmospheric rivers can produce heavy precipitation and associated hazards worldwide. A new study identifies regions where these hazards have already,...

PRESS RELEASE: Lawsuit challenges Trump’s dangerous Delta water grab

Conservation organizations & coalitions

Water project operationsWater rights and water law

March 2, 2026

Bureau of Reclamation’s excessive pumping violates Endangered Species Act Press release from the Center for Biological Diversity, SF Baykeeper, and...

PRESS RELEASE: Board staff recommends Delta-Mendota Subbasin return to DWR oversight under SGMA

State Water Board

Groundwater News

March 2, 2026

Press release from the State Water Resources Control Board State Water Resources Control Board staff today released a Staff Assessment...

DESERT RESEARCH INSTITUTE: Accounting for soil saturation enhances atmospheric river flood warnings

Desert Research Institute

Hydrology

March 1, 2026

Early warnings for atmospheric river-induced flooding are greatly improved by accounting for the impact of saturated soils. From the Desert...

USGS: Early detection of aquatic threats: eDNA research in the Colorado River ecosystem & Lake Powell

USGS

Science

March 1, 2026

From the USGS: The USGS and partners are conducting environmental DNA (eDNA) research in the Colorado River downstream from Glen...

NOTICE: State Water Board to consider exclusions for small pumpers in the Tule and Tulare Lake subbasins

State Water Board

ANNOUNCEMENTSGroundwater News

March 1, 2026

Notice from the State Water Board: The State Water Resources Control Board (State Water Board or Board) designated the Tulare...

DAILY DIGEST, weekend edition: Storms provide a much-needed boost but statewide snowpack remains below average; Delta National Heritage Area’s new passport program boosts tourism, preserves history; 8 weeks after massive sewage spill, Clearlake residents see no end in sight; ‘The risk of litigation is high’ for Colorado River states, says Utah’s negotiator; and more …

Maven

Daily Digest

March 1, 2026

Note: The Daily Digest will return on Tuesday, March 3. [cmtoc_table_of_contents] On the calendar Monday … PUBLIC HEARING: Delta Conveyance...

DWR: February storms provide a much-needed boost but statewide snowpack remains below average

Department of Water Resources (DWR)

Hydrology

February 27, 2026

From the Department of Water Resources: The Department of Water Resources (DWR) today conducted the third snow survey of the...