U.S. Groundwater Conditions
U.S. Groundwater Conditions
New data visualization shows groundwater levels at 2,281 well sites across the U.S.
New data visualization shows groundwater levels at 2,281 well sites across the U.S.
Rivers in the sky: 6 facts you should know about atmospheric rivers
Rivers in the sky: 6 facts you should know about atmospheric rivers
USGS-National Park Service Partnership launches new website
USGS-National Park Service Partnership launches new website
New features like an interactive map and improved search provide easier access to project information and products
New features like an interactive map and improved search provide easier access to project information and products
Groundwater flow to Colorado River may decline by 29% over the next 30 years
Groundwater flow to Colorado River may decline by 29% over the next 30 years
Upper Colorado River Basin baseflow accounts for more than 50% of annual streamflow; new model reflects possible climate change conditions
Upper Colorado River Basin baseflow accounts for more than 50% of annual streamflow; new model reflects possible climate change conditions
Recent study uses the National Water Quality Laboratory's new PFAS-detection method
Recent study uses the National Water Quality Laboratory's new PFAS-detection method
34 per- and polyfluoroalkyl substances (PFAS) were detected in 60 Iowa streams, providing critical baseline data
34 per- and polyfluoroalkyl substances (PFAS) were detected in 60 Iowa streams, providing critical baseline data
Looking for current water conditions?
Looking for current water conditions?
The National Water Dashboard is an interactive, mobile-friendly tool that provides real-time water, weather, and flood information all in one place
The National Water Dashboard is an interactive, mobile-friendly tool that provides real-time water, weather, and flood information all in one place
Water Resources
Water information is fundamental to national and local economic well-being, protection of life and property, and effective management of the Nation’s water resources. The USGS works with partners to monitor, assess, conduct targeted research, and deliver information on a wide range of water resources and conditions including streamflow, groundwater, water quality, and water use and availabil
USGS Water Data for the Nation
USGS Water Data for the Nation
Surface-water, groundwater, water-quality, and water-use data collected at approximately 1.9 million sites across all 50 states.
Message from the Associate Director for Water
Message from the Associate Director for Water
Learn more about the WMA from Dr. Don Cline, the Associate Director for Water Resources.
Popular Water Data and Tools
Popular Water Data and Tools
Explore our science by the topical areas that drive the research and projects conducted by our Programs.
Publications
Geology and hydrogeology of the Yucaipa groundwater subbasin, San Bernardino and Riverside Counties, California
The Yucaipa groundwater subbasin (referred to in this report as the Yucaipa subbasin) is located about 75 miles (mi) east of of Los Angeles and about 12 mi southeast of the City of San Bernardino. In the Yucaipa subbasin, as in much of southern California, limited annual rainfall and large water demands can strain existing water supplies; therefore, understanding local surface water and groundwate
Risk-based prioritization of organic chemicals and locations of ecological concern in sediment from Great Lakes tributaries
With improved analytical techniques, environmental monitoring studies are increasingly able to report the occurrence of tens or hundreds of chemicals per site, making it difficult to identify the most relevant chemicals from a biological standpoint. For this study, organic chemical occurrence was examined, individually and as mixtures, in the context of potential biological effects. Sediment was c
Science
WUDR Cooperative Funding Awards, FY21
The USGS Water-Use Data and Research (WUDR) program is pleased to announce the recipients of FY21 cooperative agreements. Awards were made to agencies in 6 States, for a total of about $560,000 in funding.
CASCaDE: Computational Assessments of Scenarios of Change for the Delta Ecosystem
The Delta of the Sacramento and San Joaquin rivers provides drinking water supplies to two-thirds of Californians, and is a fragile ecosystem home to threatened and endangered species. The CASCaDE project builds on several decades of USGS science to address the goals of achieving water supply reliability and restoring the ecosystems in the Bay-Delta system.
Water-Use Data and Research (WUDR) program
The USGS Water-Use Data and Research (WUDR) program provides financial assistance through cooperative agreements with State water resource agencies to improve the availability, quality, compatibility, and delivery of water-use data that is collected or estimated by States.