Water Resources

Data and Tools

The USGS Water Resources Mission Area provides water information that is fundamental to national and local economic well-being, protection of life and property, and effective management of the Nation’s water resources. Below, find data and tools relevant to a wide range of water resources and conditions including streamflow, groundwater, water quality, and water use and availability.

USGS Water Data for the Nation

USGS Water Data for the Nation

Access to water data collected at approximately 1.9 million sites

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Water Quality Portal

Water Quality Portal

Water quality data from state, federal, tribal, and local agencies

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Filter Total Items: 400
Date published: June 11, 2019

Drought Streamflow Probabilities in Northeast Region

Maximum likelihood logistic regression is used to estimate drought probabilities for selected Northeast region streams. Winter streamflows are used to estimate the chance of hydrologic drought during summer months. Hydrologic drought streamflow probabilities for July, August, and September are provided 5 to 11 months in advance. This application allows the display and query of drought...

Date published: June 11, 2019

Delaware River Basin Monitoring-Site Mapper

The Water-Monitoring-Site Mapper is an interactive map of the Delaware River Basin next-generation integrated water observing system with locations from the USGS National Water Information System. Piloting the NextGen water observing system in the Delaware River Basin provides an opportunity to support innovative modern water prediction and decision support systems in a complex river system....

Date published: April 2, 2019

Flood Event Viewer - Montana June 2018 Flood Rocky Mountain Front

The USGS WY-MT Water Science Center provided discharge measurements and high water mark (HWM) flagging for the June 2018 flooding along Elk Creek in Augusta, Montana.

Date published: March 5, 2019

USGS Surface-Water Data for the Nation

Real-time, daily, peak-flow, field measurements, and statistics of current and historical data that describe stream levels, streamflow (discharge), reservoir and lake levels, surface-water quality, and rainfall across the U.S. Surface-water data are collected and stored as either discrete field-water-level measurements or as continuous time-series data from automated recorders.

Date published: March 5, 2019

USGS Groundwater Data for the Nation

Data from wells, springs, test holes, tunnels, drains, and excavations across the U.S.; well location data includes information such as latitude and longitude, well depth, and aquifer. Groundwater level data are collected and stored as either discrete field-water-level measurements or as continuous time-series data from automated recorders.

Date published: March 5, 2019

USGS Water-Quality Data for the Nation

Chemical, physical, and biological properties of water, sediment, and tissue samples from across the U.S. Water-quality data are collected as either discrete field measurements or as continuous time-series data from automated recorders that continuously record physical and chemical characteristics including pH, specific conductance, temperature, and dissolved oxygen.

Date published: March 5, 2019

USGS Water Use Data for the Nation

Water-use data is collected by area type (state, county, watershed, or aquifer) and source (such as rivers or groundwater), and category (such as public supply or irrigation). Water-use data has been reported every five years since 1950. The USGS works in cooperation with local, State, and Federal agencies as well as academic and private organizations to collect and report withdrawals.

Date published: March 5, 2019

National Water Information System (NWIS) Mapper

The NWIS mapper provides access to over 1.5 million sites contained in the USGS National Water Information System (NWIS), including sites where current and historical surface-water, groundwater, springs, and atmospheric data has been collected. Users can search by site type, data type, site number, or place.

Date published: March 5, 2019

USGS Water-Data Site Information for the Nation

The NWIS Site Inventory System contains information about USGS sites at stream reaches, wells, test holes, springs, tunnels, drains, lakes, reservoirs, ponds, excavations, and water-use facilities. Site-level and time-series level revisions are also now available.

Date published: March 4, 2019

Water Quality Portal

The Water Quality Portal integrates and provides access to publicly available water-quality data from databases such as USGS NWIS and BioData, EPA STORET, and USDA-ARS STEWARDS through a single search interface.

Date published: March 4, 2019

National Ground-Water Monitoring Network (NGWMN) Data Portal

The NGWMN Data Portal provides access to groundwater data from multiple, dispersed databases in a web-based mapping application. The Portal contains current and historical data including water levels, water quality, lithology, and well construction.

Date published: March 4, 2019

USGS Sediment Data Portal

Identify, access, and interpret USGS discrete and (or) daily suspended sediment data suspended-sediment and related data. The U.S. Geological Survey National Water Information System (NWIS) is the original source for all suspended-sediment data provided in the portal.