USGS Water Data Discovery
What are you looking for?
Real-time flood data
Real-time drought data
Real-time groundwater levels
Recent groundwater levels
Groundwater response to climate
Real-time surface water quality
General recreation information can be found at www.rec.gov
Private organizations such as American Whitewater provide alternative resources that use USGS and other information for planning water-based activities.
Annual water data reports
Instantaneous streamflow data
National Water Quality Assessment
Water use in the United States
Some notable collections of USGS water data
A Reservoir Sedimentation Database from federal agencies is also maintained by USGS.
The Hydro-Climatic Data Network 2009 (HCDN-2009) is an updated listing of streamgaging stations where discharge primarily reflects prevailing meteorological conditions. The purpose of the network is to provide a streamflow data set suitable for analyzing hydrologic variations and trends in a climatic context.
The National Stream Quality Accounting Network provides ongoing characterization of the concentrations and transport of sediment and chemicals in the Nation's largest rivers.
USGS collects most of the water data in the Nation, but official forecasts are made by other agencies. Forecasts are subject to any limitations and disclaimers made by the issuing agencies. In all cases, professionals should always be consulted concerning decisions that may affect safety of people or property or economic risk.
Water-resources planning and forecasts are done by other federal, regional, state, local, and tribal agencies. In most cases, USGS partners with these agencies to provide reliable current and historical water data that are essential for making accurate forecasts. These links leave the USGS web sites.
USGS water data and statistics are used by other agencies to estimate future conditions and to assess risks such as flooding and drought. Planners and engineers use USGS water data, statistics, and other data for design of systems for water supply, flood control, environmental protection, and recreation.