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
Surface-water, groundwater, water-quality, and water-use data collected at approximately 1.9 million sites across all 50 states.
Get dataMessage from the Associate Director for Water
Learn more about the WMA from Dr. Don Cline, the Associate Director for Water Resources.
ReadPopular 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 Groundwater Monitoring Network Data Portal
More data and toolsNews
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.
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.
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
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.
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.
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.