Web Tools

Annual Water Data Reports were published annually for many decades as static archival products that supplemented direct access to current and historical water data provided by the USGS. These formal publications have been discontinued, but historical reports and modern replacements are available.

Interactive mapping of groundwater levels.

Water Data for the Nation (WDFN) is the home for USGS’s modernization of public delivery of water data.

This site is the home for modernized access to USGS water data in machine-readable formats via REST APIs, a common type of web service programs use to search and download data. These services provide USGS water data, ranging from continuous measurements of streamflow to information about individual USGS sites and more.

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 Water Data Blog posts highlight water data developments, data, and applications.

Mapper of seasonal nitrogen and phosphorus loading to the Puget Sound by source and HUC12 watershed, 2000 through 2020

Do you need to know when streamflows are low or if streams go dry? The USGS has developed a Low Flow Data and Model Discovery Table that provides an overview of available data and models with information on streamflow, including low-flow and no-flow conditions.

This web page displays groundwater-level data for selected wells monitored by the U.S. Geological Survey (USGS) in and near the Duwamish River valley, King County, Washington. These data are part of a project to better understand the geology and groundwater in and near the Duwamish River valley and how groundwater may contribute to flooding in the valley.

Explore the geonarrative highlighting USGS research activities in transboundary watersheds in the northwest. The USGS is establishing baseline water quality conditions in rivers that cross the US-Canadian border.

The Baseflow Forecast Web Tool allows you to access baseflow forecasts at thousands of locations across the Nation.

US Geological Survey operates a streamflow monitoring network that extends across the United States and its territories. The network was analyzed systematically by Konrad and others (2022) for its coverage, resolution, and representation of a wide range of public interests in streamflow information The results can be used to identify priority areas for continued or expanded monitoring.

The National Water Dashboard (NWD) is a mobile, interactive tool that provides real-time information on water levels, weather, and flood forecasts - all in one place on a computer, smartphone, or other mobile device. The NWD presents real-time stream, lake and reservoir, precipitation, and groundwater data from more than 13,500 USGS observation stations across the country.