Water Resources of the United States


National Water Information System

View current and historical streamflow, ground-water level, and water-quality data

Today's Water Conditions

View comparisons of current and historical conditions using maps
Click map to go to current water resources conditions in the U.S.



USGS Water Science Centers are located in each state

Contact Us

If You have Questions or Need Assistance...

image of search iconUSGS Search or use Frequently Asked Questions to find the specific USGS information, data, maps, products, or services that you need.

image of an online form icon Use our online form for feedback and questions about water. While we make every effort to reply to your inquiries as soon as possible, please allow up to seven days for a response.

Use the Electronic Phone Book to locate a specific USGS employee, or call toll-free 1-888-ASK-USGS (1-888-275-8747).

For topical information or to contact USGS Water science-specialty offices:

  • Groundwater—Information and studies about aquifers and well water resources for the Nation
  • Surface Water—Information and studies about streams, reservoirs, and lake water resources of the Nation
  • Water Quality—Information and studies about chemicals and contaminants in water resources of the Nation

USGS Water Science Centers have local USGS water information in your state

Contact Information for Other USGS Resources

USGS National Center
12201 Sunrise Valley Drive
Reston, VA 20192, USA

Use the Contact USGS web form for general USGS questions.

USGS Office of Communications staff is available to the media around-the-clock.

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Page Last Modified: Tuesday, 13-Dec-2016 08:08:36 EST