U.S. River Conditions
New data visualization shows low- and high-flow events across the U.S. for January to March 2024
New data visualization shows low- and high-flow events across the U.S. for January to March 2024
Water Resources Mission Area
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 availability.
Message from the Associate Director
Message from the Associate Director
Learn more about the Mission Area from the Associate Director for Water Resources.
Water Data for the Nation
Water Data for the Nation
Water data collected at approximately 1.9 million sites across all 50 states.
News
Advanced Quantitative Precipitation Information System Enhances Flood Prediction in San Francisco Bay Area
Advanced Quantitative Precipitation Information System Enhances Flood Prediction in San Francisco Bay Area
New dataset provides critical ecological information for lakes across the U.S.
New dataset provides critical ecological information for lakes across the U.S.
Studies Reveal Presence and Distribution of PFAS in New Mexico's Water Resources
Studies Reveal Presence and Distribution of PFAS in New Mexico's Water Resources
Publications
Status of water quality in groundwater resources used for drinking-water supply in the southeastern San Joaquin Valley, 2013–15—California GAMA Priority Basin Project
The California Groundwater Ambient Monitoring and Assessment Program Priority Basin Project (GAMA-PBP) investigated water quality of groundwater resources used for drinking-water supplies in the Madera-Chowchilla, Kings, Kaweah, Tule, and Tulare Lake groundwater subbasins of the southeastern San Joaquin Valley during 2013–15. The study focused primarily on groundwater resources used for domestic-s
Groundwater sustainability and land subsidence in California’s Central Valley
The Central Valley of California is one of the most prolific agricultural regions in the world. Agriculture is reliant on the conjunctive use of surface-water and groundwater. The lack of available surface-water and land-use changes have led to pumping-induced groundwater-level and storage declines, land subsidence, changes to streamflow and the environment, and the degradation of water quality. A
Science
National Atmospheric Deposition Program (NADP)
The National Atmospheric Deposition Program (NADP) is a multi-partner atmospheric monitoring program that measures the concentrations and deposition of atmospheric constituents across North America. The USGS has been an NADP partner agency since 1981 and participates by providing funds for 72 National Trend Network (NTN) sites.
Phosphorus in the Susquehanna River may be tied to legacy sediment and changing pH
The Susquehanna River is the predominant source of freshwater and nutrients entering the Chesapeake Bay.
USGS Streamgages By the Numbers
Get the facts and figures about the USGS Streamgaging Network, one of the largest streamgaging enterprises in the world!