Mission Areas

Water Resources

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 USGS works with partners to monitor, assess, conduct targeted research, and deliver information on 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

Surface-water, groundwater, water-quality, and water-use data collected at approximately 1.9 million sites across all 50 states.

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Message from the Associate Director for Water

Message from the Associate Director for Water

Learn more about the WMA from Dr. Don Cline, the Associate Director for Water Resources.

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Popular Water Data and Tools

Explore our science by the topical areas that drive the research and projects conducted by our Programs.

USGS Water Data for the Nation

National Water Dashboard

Water Quality Portal

National Groundwater Monitoring Network Data Portal

Groundwater Watch

MODFLOW

StreamStats

More data and tools

News

Date published: April 6, 2021

New USGS Report Shows High Levels of Arsenic and Uranium in Some Connecticut Wells

A new U.S. Geological Survey study provides an updated, statewide estimate of high levels of naturally occurring arsenic and uranium in private well water across Connecticut.

Date published: April 2, 2021

The Quality of Our Groundwater—Progress on a National Survey

A U.S. Geological Survey study of groundwater quality across the nation that began in 2013 now includes water-quality information for 18 of the most heavily used aquifers in the nation.

Date published: March 26, 2021

USGS Dye-Tracing Study on the Kansas River to Aid in Protecting Water Supplies

The U.S. Geological Survey and partners will inject a harmless, bright red fluorescent dye into the Kansas River at Eudora on March 31, weather permitting. 

Publications

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Year Published: 2021

Characterization of water-resource threats and needs for U.S. Fish and Wildlife Service National Wildlife Refuges in the Legacy Mountain-Prairie Region, 2020

The U.S. Geological Survey, in cooperation with the U.S. Fish and Wildlife Service (FWS), began a study in 2019 to complete the compilation and quality assurance of water-resource threats and needs data for the 117 National Wildlife Refuges (NWRs) in the FWS Legacy Mountain-Prairie Region (LMPR) and to characterize the water-resource threats and...

Bauch, Nancy J.; Kohn, Michael S.; Caruso, Brian S.
Bauch, N.J., Kohn, M.S., and Caruso, B.S., 2021, Characterization of water-resource threats and needs for U.S. Fish and Wildlife Service National Wildlife Refuges in the Legacy Mountain-Prairie Region, 2020: U.S. Geological Survey Open-File Report 2021–1007, 46 p., https://doi.org/10.3133/ofr20211007.

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Year Published: 2021

Executive summary and annotated bibliography of selected references from “Microbial and viral indicators of pathogens and human health risks from recreational exposure to waters impaired by fecal contamination” with related project ideas for Gwinnett County, Georgia

This document was prepared in cooperation with Gwinnett County, Georgia, to supplement the journal article “Microbial and Viral Indicators of Pathogens and Human Health Risks from Recreational Exposure to Waters Impaired by Fecal Contamination” (published in Journal of Sustainable Water in the Built Environment). The document includes an executive...

McKee, Anna M.; Cruz, Marcella A.
McKee, A.M., and Cruz, M.A., 2021, Executive summary and annotated bibliography of selected references from “Microbial and viral indicators of pathogens and human health risks from recreational exposure to waters impaired by fecal contamination” with related project ideas for Gwinnett County, Georgia: U.S. Geological Survey Open-File Report 2021–1028, 10 p., https://doi.org/10.3133/ofr20211028.

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Year Published: 2021

Water resources of Iberville Parish, Louisiana

Information concerning the availability, use, and quality of water in Iberville Parish, Louisiana, is critical for proper water-supply management. The purpose of this fact sheet is to present information that can be used by water managers, parish residents, and others for stewardship of this vital resource. In 2014, about 589.87 million...

Lindaman, Maxwell A.; White, Vincent E.
Lindaman, M.A., and White, V.E., 2021, Water resources of Iberville Parish, Louisiana: U.S. Geological Survey Fact Sheet 2021–3014, 6 p., https://doi.org/10.3133/fs20213014.