Water Resources

Types of Water

The Water Cycle

The Water Cycle

Water is constantly moving through the hydrologic cycle

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Rivers, Streams, and Creeks

Rivers, Streams, and Creeks

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

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Filter Total Items: 165
Date published: April 20, 2021
Status: Active

Sampling Methods for the Water Quality of San Francisco Bay Project

The Water Quality of San Francisco Bay Research and Monitoring Project measures changes in water quality along the deep channel of the San Francisco Bay-Delta system using submersible sensors and discrete water samples. Learn more about how we collect and measure water-quality data.

Attribution: Water Resources
Date published: April 20, 2021
Status: Active

Research Vessel David H. Peterson

The Research Vessel David H. Peterson begain service with the U.S. Geological Survey in 2015. Named after a founder of the Water Quality of San Francisco Bay Research and Monitoring Project, this vessel is a high-tech scientific platform for estuarine research.  Learn more about how the R/V David H. Peterson makes our research possible. 

Attribution: Water Resources
Date published: March 8, 2021
Status: Active

Principal Aquifers of the United States

This website compiles USGS resources and data related to principal aquifers including Aquifer Basics, principal aquifers maps and GIS data, and the National Aquifer Code Reference List.

Contacts: Ask USGS
Attribution: Water Resources
Date published: March 8, 2021
Status: Active

National Aquifer Code Reference List

This list of national principal aquifer codes and names are fixed values assigned by the National Water Information System (NWIS). Aquifers are identified by a geohydrologic unit code - a three-digit number related to the age of the formation, followed by a 4 or 5 character abbreviation for the geologic unit or aquifer name.

Contacts: Ask USGS
Attribution: Water Resources
Date published: February 16, 2021
Status: Active

Flood Frequency Reports

Flood-frequency analysis provides information about the magnitude and frequency of floods based on records of annual maximum instantaneous peak discharges. Accurate flood-frequency estimates, created using consistent and uniformly applied methods, are a key component of any effective flood risk and management program. This is a list of current USGS flood frequency reports published by state...

Attribution: Water Resources
Date published: January 20, 2021
Status: Active

National Atmospheric Deposition Program (NADP)

The National Atmospheric Deposition Program (NADP) is a multi-partner atmospheric monitoring program that measures the concentrations and deposition of atmospheric constituents across North America. The USGS has been an NADP partner agency since 1981 and participates by providing funds for 82 National Trend Network (NTN) sites.

Contacts: Douglas A Burns
Date published: August 31, 2020
Status: Active

Powder River: Data for Cross-Channel Profiles at 22 Sites in Southeastern Montana, 1975 through 2019

Powder River rises in the Bighorn Mountains of Wyoming and flows northward through a semi-arid landscape in Wyoming and Montana to the Yellowstone River. The river drains an area of 34,700 square kilometers and has an average discharge of about 500 million cubic meters per year. Cross-channel profile data were collected at 22 sites on the river and its tributaries from 1975 through 2014.

Contacts: John A Moody, Robert Meade
Attribution: Water Resources
Date published: August 13, 2020
Status: Active

USGS Blue Carbon Projects

Together with partner organizations, the USGS is involved in data collection, analysis, and synthesis to improve estimates of coastal wetland carbon fluxes.  This research will help improve science and data availability across a wide range of topics.

Attribution: Water Resources
Date published: August 3, 2020
Status: Active

Water Quality of San Francisco Bay Research and Monitoring Project

Since 1969, the U.S. Geological Survey has maintained a research project in the San Francisco Bay-Delta system to measure and understand how estuarine systems and tidal river deltas function and change in response to hydro-climatic variability and human activities.

Attribution: Water Resources
Date published: May 13, 2020
Status: Active

Transboundary Assessments of Water Quality in the Pacific Northwest

In 2019, the USGS began studying the baseline water-quality of selected transboundary rivers in the Pacific Northwest. These studies are designed to characterize current water-quality conditions so as to facilitate future assessments of potential impacts related to upstream mining activities.

Contacts: Casey J Lee
Attribution: Water Resources
Date published: March 30, 2020
Status: Active

Atmospheric Warming, Loss of Snow Cover, and Declining Colorado River Flow

Declining snow cover is playing a key role in decreasing the flow of the Colorado River, “the lifeblood of the Southwest,” by enabling increased evaporation. As the warming continues, increasingly severe water shortages are expected. 

Attribution: Water Resources
Date published: January 28, 2020
Status: Active

International Water Resources Activities

USGS water-related projects of international interest.