Mission Areas
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 availability.
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.
Get dataMessage from the Associate Director for Water
Learn more about the WMA from Dr. Don Cline, the Associate Director for Water Resources.
ReadPopular Water Data and Tools
Explore our science by the topical areas that drive the research and projects conducted by our Programs.
USGS Water Data for the Nation
National Groundwater Monitoring Network Data Portal
More data and toolsNews
USGS Crews Work Fast to Capture Critical Flooding Measurements in the Mid-Atlantic
To learn more about USGS’s role providing science to decision makers before, during and after Ida, visit https://www.usgs.gov/Ida
Media Alert: New Flood Warning Gage in Pack Creek near Moab Utah
A new rapid deployment U.S. Geological Survey flood warning gage has been installed in Pack Creek, 9 miles southeast of Moab, Utah, below the June 2021 wildfire burn area.
USGS Responding to High Water Caused By Ida Across Multiple States
To learn more about USGS’s role in providing science to decision-makers before, during and after Hurricane Ida, visit www.usgs.gov/ida.
For information on what the Department of Homeland Security and FEMA are doing, visit: https://www.fema.gov/hurricane-ida.
For more on what the U.S. Government is Doing, visit: https://www.usa.gov/hurricane-ida or https://gobierno.usa.gov/huracan-ida for Spanish.
Publications
Post-fire temporal trends in soil-physical and -hydraulic properties and simulated runoff generation: Insights from different burn severities in the 2013 Black Forest Fire, CO, USA
Burn severity influences on post-fire recovery of soil-hydraulic properties controlling runoff generation are poorly understood despite the importance for parameterizing infiltration models. We measured soil-hydraulic properties of field-saturated hydraulic conductivity (Kfs), sorptivity (S), and wetting front potential (ψf) for four years after...
Ebel, Brian A.; Moody, John A.; Martin, Deborah A. Evaluation of ELISA for the analysis of imidacloprid in biological matrices: Cross-reactivities, matrix interferences, and comparison to LC-MS/MS
Imidacloprid is among the most used pesticides worldwide and there are toxicity concerns for nontarget organisms. Accurate and sensitive methods are necessary to quantitate imidacloprid concentrations in biological matrices to better understand their fate and effects. Here we evaluated an enzyme-linked immunosorbent assay (ELISA) kit for...
Gross, Michael S.; Woodward, Emily; Hladik, Michelle
Streamflow—Water year 2020
The maps and graphs in this summary describe national streamflow conditions for water year 2020 (October 1, 2019, to September 30, 2020) in the context of streamflow ranks relative to the 91-year period of water years 1930–2020. Annual runoff in the Nation’s rivers and streams during water year 2020 (11.10 inches) was higher than the long-term (...
Jian, Xiaodong; Wolock, David M.; Lins, Harry F.; Henderson, Ronald J.; Brady, Steven J.