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: 821
Date published: September 16, 2021

GIS shapefile and related summary data describing irrigated agricultural land-use in Broward and Miami-Dade Counties, Florida for 2019-2021

A Geographic Information System (GIS) shapefile and summary tables of field-verified irrigated agricultural land-use between January 2019 and February 2021 are provided for Broward and Miami-Dade Counties, Florida, compiled through a cooperative project between the U.S Geological Survey and the Florida Department of Agriculture and Consumer Services, Office of Agricultural Water Policy.

Date published: September 2, 2021

Reach-scale estimates of nutrient, water use, dissolved oxygen, and pH conditions in the Pacific drainages of the United States

This data release contains data sets that describe reach-scale water-quality conditions for the Pacific drainages of the United States. 

Date published: August 10, 2021

Data from Decadal Change in Groundwater Quality Web Site, 1988-2020

Groundwater-quality data were collected from 5,000 wells between 1988-2020 by the National Water-Quality Assessment Project. This data release is the fifth iteration of data added to the Groundwater Quality Web Site. 

Attribution: Water Resources
Date published: June 30, 2021

Spatial and tabular datasets of water withdrawals and use in Puerto Rico, 2015

The U.S. Geological Survey has compiled information on water withdrawal and use for Puerto Rico at 5-year intervals since 1980 to provide data for the management of the Commonwealth’s water resources. For 2015, fourteen tables and one shapefile were compiled to provide water withdrawals by municipalities and other water use information.

Date published: June 22, 2021

WaterWatch (surface water)

WaterWatch displays maps, graphs, and tables describing real-time, recent, and past streamflow conditions for the United States, including flood and droughts. Real-time information generally is updated on an hourly basis.

Date published: June 22, 2021

Groundwater Watch

Groundwater Watch displays maps, graphs, and tables describing real-time, recent, and historical groundwater data from wells and springs across the United States. Groundwater Watch groups related wells and data from active well networks and provides basic statistics about the water-level data collected by the USGS and from data supplied to us from partners through cooperative agreements.

Date published: June 22, 2021


WaterQualityWatch provides access to real-time water-quality data collected at more than 2,000 stream sites throughout the United States, including streamflow, water temperature, specific conductance, pH, dissolved oxygen, turbidity, and nitrate.

Date published: June 22, 2021


The USGS WaterNow service lets users receive current conditions for USGS water-data-collection stations on demand via email or cell-phone text message. The user sends an email or text message containing a USGS current-conditions gaging site number, and will quickly receive a reply with the station's most recent data for one or more of its monitored parameters.

Date published: June 22, 2021


The U.S. Geological Survey WaterAlert service sends e-mail or text (SMS) messages when certain parameters, as measured by a USGS real-time data-collection station, exceed user-definable thresholds. The development and maintenance of the WaterAlert system is supported by the USGS and its partners, including numerous federal, state, and local agencies.

Date published: June 22, 2021

NWIS Current Water Data (Real-Time Data)

The USGS provides real-time or near-real-time conditions water data at sites across the Nation. Current data typically are recorded at 15- to 60-minute intervals, stored onsite, and then transmitted to USGS offices every 1 to 4 hours, depending on the data relay technique used. Recording and transmission times may be more frequent during critical events.

Date published: June 22, 2021

USGS Mobile Water Data

The USGS Mobile Water Data site highlights USGS current conditions water data in a mobile-friendly website, allowing users to monitor conditions at a favorite river or stream or locate nearby monitoring locations. All USGS current conditions water data is available.