Data

Providing current data for analysis, forecasting, and research

Basic hydrologic data collection, processing, analysis, dissemination, and archiving are major parts of the California Water Science Center program. Streamflow data, for example, are used for flood and water-supply forecasts, planning and design, river regulation, streamflow statistics, and research investigations. Much of the data are available on a near-real-time basis by satellite telemetry.

California Water Dashboard

View California's real-time stream, lake, reservoir, precipitation, water quality, and groundwater stations in context with current weather and hazard conditions.

Current Conditions

California Groundwater Quality

This interactive webmap plots water-quality data from domestic and public-supply wells sampled by the USGS for the California GAMA Priority Basin Project, and allows users to download datasets.

Water Quality Data

California Water Data

Filter Total Items: 325

Data Type

Node Release Date

States

Fulltext search

April 23, 2019

Geochemical and geophysical data for selected wells in and surrounding the South Cuyama oil and gas field

The U.S. Geological Survey (USGS) in cooperation with the California State Water Resources Control Board and Bureau of Land Management compiled and analyzed data for mapping groundwater salinity in selected oil and gas fields in California. The data for the South Cuyama oil field includes well construction data, digitized borehole geophysical data, geochemical analyses of water samples from oil an

California Water Science Center

April 23, 2019

Sucralose Concentrations in Groundwater in California's Sacramento Valley Shallow Aquifer System

This data release comprises a set of environmental sucralose occurrence data in the Sacramento area. Groundwater samples were collected throughout the Sacramento Valley as part of the California Groundwater Ambient Monitoring and Assessment Program Priority Basin Project study in the Sacramento area. These water samples were analyzed for sucralose by chemical derivatization followed by gas chromat

California Water Science Center

April 17, 2019

Interpolated Surfaces of Well Construction Characteristics for Domestic and Public-Supply Well Use in the Central Valley, California, USA

Well construction data from domestic and public-supply wells in the Central Valley were compiled from the California State Water Resources Control Board Division of Drinking Water (CADDW), the Department of Water Resources (CADWR), and the United States Geological Survey (USGS). Additional wells in the Central Valley were compiled by recording water use and depth to the top and bottom of well scre

California Water Science Center

February 28, 2019

Historical Produced Water Chemistry Data Compiled for the Lost Hills and North and South Belridge Oilfields, Kern County, California

This dataset contains geochemical and other information for 268 samples of produced water from the Lost Hills and North and South Belridge Oil Fields. Produced water is water coexisting with oil and gas. The historical produced water chemistry data was compiled from preexisting datasets and scanned images into a numerical dataset to characterize produced water chemical characteristics. Each sample

California Water Science Center

February 26, 2019

Absorption, distribution, metabolism, and elimination of seed-treatment pesticides following the dosing of Japanese quail (Coturnix japonica)

Japanese quail (Coturnix japonica) were orally dosed with pesticide-treated or control-untreated wheat seeds. Pesticide treated wheat seeds were analytically verified for active ingredients of imidacloprid, metalaxyl, tebuconazole, and fludioxonil. Pesticide and metabolite residues were measured in plasma, liver, brain, kidney, muscle, and excreta of exposed and control birds. Samples were extract

Ecosystems Mission Area, Contaminant Biology, Environmental Health Program, Toxic Substances Hydrology, California Water Science Center

February 5, 2019

Electrical Resistivity Tomography Data at Fort Irwin National Training Center, San Bernardino County, California, 2015 and 2017

The U.S. Army Fort Irwin National Training Center (NTC), approximately 35 mi north-northeast of Barstow, California, covers approximately 1,177 square miles, and is comprised of ten groundwater basins, three of which have been subdivided into subbasins on the basis of additional hydrologic testing. Since the early 1990s, the U.S. Geological Survey (USGS) has been studying water resources issues at

California Water Science Center, Geology, Geophysics, and Geochemistry Science Center

February 4, 2019

Geomorphic map of Malakoff Diggins State Historic Park, California

One of the largest hydraulic mines (1.6 km2) is located in Californias Sierra Nevada within the Humbug Creek watershed and Malakoff Diggins State Historic Park (MDSHP). MDSHPs denuded and dissected landscape is composed of weathered Eocene auriferous sediments susceptible to chronic rill and gully erosion whereas block failures and debris flows occur in more cohesive terrain. This data release inc

California Water Science Center

February 4, 2019

Streamflow, Runoff and Baseflow Estimates for Gaged Basins in the Northwest Volcanic Aquifer Study Area, USA, 1904 to 2015

The U.S. Geological Survey's Water Availability and Use Study Program (WAUSP) (https://water.usgs.gov/ogw/gwrp/activities/regional.html) supports quantitative assessments of groundwater availability in areas of critical importance. As part of a WAUSP study in the arid to semi-arid Northwest Volcanic Aquifer Study Area (NVASA), estimates of runoff and baseflow were determined for 312 streamflow-gag

California Water Science Center

February 4, 2019

1992 digital surface model and orthomosaic of Malakoff Diggins State Historic Park, California

California Water Science Center

California Flood Activity Alerts

USGS Project Alert Notices RSS feed includes response summaries of USGS streamgaging network activity during storm events in California. These Notices are produced by USGS Streamgaging Programs nationally and can be found on the USGS Current Floods Website.

California Water Science Center

December 18, 2018

Geophysical and geochemical data for salinity mapping in the Midway-Sunset oil field area

The U.S. Geological Survey (USGS) and California State University-Sacramento, in cooperation with the California State Water Resources Control Board and U.S. Bureau of Land Management, compiled and analyzed data for mapping groundwater salinity in selected oil and gas fields in California. The data for the Midway-Sunset (MWSS) oil field includes digitized borehole geophysical data, geochemical ana

California Water Science Center

Lower Colorado River Hydrologic Monitoring Network

The Lower Colorado Monitoring Network, located along the All-American Canal in Imperial County, California, is a series of groundwater-level and water-quality wells, as well as streamgages and micro-gravity sites. This interactive map displays the sites and provides links to the most current data.

California Water Science Center