California Water Science Center


In this section you will find California Water Science Center news and events. If you are with a media outlet and are requesting information please contact:  Sally House, Science Communications, at (916) 698-0270.

Filter Total Items: 78
Date published: September 17, 2021

Public notice for the upgrade and expansion of the water monitoring network in the Sacramento-San Joaquin Delta

The U.S. Geological Survey (USGS) provided the public an opportunity  to review and comment on an Environmental Assessment (EA) for the construction, upgrade, and maintenance of new and existing monitoring stations in the Sacramento-San Joaquin Delta (Delta). Public...

Date published: September 16, 2021

USGS Scientists Compare Analytical Methods for the Analysis of Imidacloprid in Biological Matrices

In a recent research project, California Water Science Center scientists compared analytical techniques for the analysis of imidacloprid in biological matrices.

Date published: September 1, 2021

Increased Pumping in California’s Central Valley During Drought Worsens Groundwater Quality

SACRAMENTO, Calif. – Intensive pumping of aquifers during drought can speed up deterioration of groundwater quality, according to a new study by the U.S. Geological Survey. The results highlight clean drinking water supply vulnerabilities in California and other western states currently experiencing record drought conditions.

Date published: August 30, 2021

Opportunity for public comment on proposal for the upgrade and expansion of the water monitoring network in the Sacramento-San Joaquin Delta

The U.S. Geological Survey (USGS) is providing the opportunity for the public to review and comment on an Environmental Assessment (EA) for the proposed construction, upgrade, and maintenance of new and existing monitoring stations in the Sacramento-San Joaquin Delta (Delta). 

Date published: August 16, 2021

Data from Nevada Tufa Mounds Could be Used to Better Understand Biosignatures on Earth and Beyond

California Water Science Center scientist, the late Dr. Michael R. Rosen, and others have authored an article characterizing biosignatures in porous rock formations (called "tufas") in Big Soda Lake, Nevada.

Date published: July 16, 2021

CAWSC Biogeochemistry Group Expands its Monitoring of Water Quality in the Delta

The USGS California Water Science Center’s Biogeochemistry Group continues to address surface water quality issues and food web dynamics throughout California, particularly in the Sacramento-San Joaquin Delta and San Francisco Bay.

May 10, 2021

California Waters - Spring 2021 - Vol. I | Issue II


Welcome to the USGS California Water Science Center newsletter. The purpose of this newsletter is to keep its readers updated with current research projects, the latest publications, and other work the center is doing.

Eric Reichard, Director of the California Water Science Center

This newsletter is also available on the web.

Date published: April 28, 2021

USGS Participates in 2021 Orange County Youth Environmental Summit

From April 19th through the 23rd, 2021, the USGS California Water Science Center (CAWSC) participated in the first virtual Orange County Youth Environmental Summit (YES). The award-winning program, formerly known as the Children's Water Education Festival, offers 3rd, 4th, and 5th graders opportunities for learning and engagement.

Date published: April 13, 2021

Bay-Delta Science Conference Goes Virtual

From April 6-9, 2021, more than 1,000 scientists, managers, and policymakers gathered virtually for the 11th Biennial Bay-Delta Science Conference.  This year’s conference "Building Resilience Through Diversity in Science" featured a plenary talk by California Water Science Center (CAWSC) Director Eric Reichard who is presently serving as Acting USGS Southwest Regional Director.

Date published: April 6, 2021

Nutrient Erosion Study Begins at California’s Clear Lake

Clear Lake, the largest natural lake entirely within California, has a severe problem with harmful algal blooms which can be detrimental to aquatic life by depriving it of oxygen when the algae dies, sinks, and decays. A driving factor of these conditions are the nutrient loads being carried into the lake by soil erosion and the transport of sediment from the lake’s tributaries. 

Date published: February 17, 2021

Scientists Study Longfin Smelt Distribution in the Coastal Pacific Ocean

USGS scientists have begun a project to estimate the marine distribution of longfin smelt (Spirinchus thaleichthys) along the North American Pacific coast.