Access to USGS Water Data
The USGS provides near real-time stage and discharge data for many of the gaging stations equipped with the necessary telemetry and historic daily mean and peak-flow discharge data for most current or discontinued gaging stations through the World Wide Web (WWW). These data may be accessed from http://water.usgs.gov.
Water-quality data and ground-water data also are available through the WWW. In addition, data can be provided in various machine-readable formats on various media. Information about the availability of specific types of data or products, and user charges, can be obtained locally from each Water Discipline District Office.
Past State Annual Water Data Reports
USGS Water Science Centers—Contact local offices for more detailed information
USGS Offices in Your State
View a Summary of Science in Your State
Methods used for collecting and analyzing water samples
List of Techniques of Water-Resources Investigations (TWRI) Reports
Annual Water Data Documentation
Special Networks and Programs
Hydrologic Benchmark Program
National Stream Quality Accounting Network
National Trends Network (NTN) for Monitoring Atmospheric Deposition
National Water Quality Assessment Program
National Streamflow Information Program