Water Resources of the United States


WATER DATA FOR THE NATION

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.

WATER SCIENCE SPECIALTIES

WATER SCIENCE BY STATE

USGS Water Science Centers are located in each state

Groundwater Technical Memorandums


Search the Groundwater Technical Memos: