Tap water study detects PFAS 'forever chemicals' across the US
USGS estimates at least 45% of tap water could have one or more PFAS
What is streamflow drought?
The new Water Cycle Diagram is now available!
Featuring improved scientific accuracy, design aesthetics, and usability in educational settings
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
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.