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

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 data

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.

Read

Popular 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

Water Quality Portal

National Groundwater Monitoring Network Data Portal

WaterWatch

Groundwater Watch

MODFLOW

StreamStats

More data and tools

News

Date published: November 3, 2020

USGS Program Tackles Complex Water Questions

The U.S. Geological Survey has chosen the Illinois River Basin as the next watershed to be studied by its scientists as part of a large-scale effort to better understand the nation’s water systems.

Date published: October 23, 2020

Common insecticide is more harmful to aquatic ecosystems than previously thought

The insecticide fipronil and some of the compounds it degrades to are more toxic to aquatic insects, such as mayflies and stoneflies, than previously estimated, reports a new study from the USGS Regional Stream Quality Assessment.