Water Resources

Measuring and Monitoring Water

Hydrologic Instrumentation Facility (HIF)

Hydrologic Instrumentation Facility (HIF)

The HIF provides quality hydrologic equipment and instrumentation

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Streamgaging Basics

Streamgaging Basics

The USGS has a nationwide network of over 8,500 sites that measure streamflow and water levels.

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Filter Total Items: 162
Date published: March 3, 2019
Status: Active

Office of the Delaware River Master

In 1954, the U.S. Supreme Court issued a Decree in State of New Jersey v. State of New York and City of New York in which the Court established the position of the Delaware River Master.  The Court directed that the River Master perform multiple duties and functions including administering the provisions of the Decree relating to yields, diversions, and releases; conserving the waters of the...

Attribution: Water Resources
Date published: March 3, 2019
Status: Active

Total Water Use

The USGS has estimated water use for the United States every 5 years since 1950. Estimates are provided for groundwater and surface-water sources, for fresh and saline water quality, and by sector or category of use. Estimates have been made at the State level since 1950, and at the county level since 1985. Water-use estimates by watershed were made from 1950 through 1995, first at the water-...

Date published: March 3, 2019
Status: Active

Trends in Water Use

Total withdrawals for all categories of use in 2015 were estimated to be 322 billion gallons per day (Bgal/d), a level of withdrawal not reported since before 1970. Total withdrawals in 2015 were 9 percent less than in 2010, continuing a sharp but steady downward trend since 2005. Freshwater withdrawals were also 9 percent less than in 2015.

Date published: March 3, 2019
Status: Active

Surface-Water Use

Surface-water sources include streams and rivers, lakes and reservoirs, and oceans. For the purposes of the USGS water-use reports, surface water with less than 1,000 milligrams per liter (mg/L) of dissolved solids is considered freshwater, and the remainder is considered saline.

Surface-water resources are often evaluated by watershed. The most recent USGS water-use estimates by...

Date published: March 3, 2019
Status: Active

Groundwater Use

Groundwater refers to all subsurface water, specifically that part of groundwater which is in the saturated zone. Groundwater sources are called aquifers: geologic formations that contain sufficient saturated permeable material to yield significant quantities of water to wells and springs. For the purposes of the USGS water-use reports, groundwater with less than 1,000 milligrams per liter (mg...

Date published: March 3, 2019
Status: Active

Surge, Wave, and Tide Hydrodynamics (SWaTH) Network

During large coastal storms, the storm surge and waves are the main cause of destruction and landscape change, transporting saline water, sediment, and debris inland. The USGS, in collaboration with stakeholders, has constructed a national Surge, Wave, and Tide Hydrodynamics (SWaTH) Network for the Atlantic, Eastern Pacific, and Central Pacific. SWaTH monitors and documents the height, extent...

Date published: March 3, 2019
Status: Active

USGS Flood Event Viewer: Providing Hurricane and Flood Response Data

During large, short-term floods, the USGS collects additional data to help document these high-water events. This data is uploaded to the USGS Short-Term Network (STN) for long-term archival, and served out to the public through the USGS Flood Event Viewer (FEV) which provides convenient, map-based access to storm-surge and other event-based data.

Date published: March 3, 2019
Status: Active

Transportation-Related Water Projects

The USGS has a long history of cooperative investigations with the Federal Highway Administration (FHWA) and state highway agencies to provide data and information to address various issues related to water resources and the Nation’s transportation infrastructure. These issues cover a wide spectrum and include items such as regional flow statistics, flood documentation, regional stream...

Attribution: Water Resources
Date published: March 3, 2019
Status: Active

Sediment Acoustics

The U.S. Geological Survey recognizes the need to provide sediment acoustic training and to develop standardized techniques and practices.

Attribution: Water Resources
Date published: March 2, 2019
Status: Active

National Atmospheric Deposition Program (NADP)

Since 1981, the USGS has been the lead Federal agency for the monitoring of wet atmospheric deposition (chemical constituents deposited from the atmosphere via rain, sleet, and snow) for the interagency National Atmospheric Deposition Program. NADP monitoring networks provide long-term, high-quality atmospheric deposition data used to support research and decision-making.

Attribution: Water Resources
Date published: March 2, 2019
Status: Active

Groundwater Quality Research

Every day, millions of gallons of groundwater are pumped to supply drinking water for about 140 million people, almost one-half of the Nation’s population. Learn about the quality and availability of groundwater for drinking, where and why groundwater quality is degraded, and where groundwater quality is changing.

Date published: March 2, 2019
Status: Active

Water Quality in the Nation’s Streams and Rivers – Current Conditions and Long-Term Trends

The Nation's rivers and streams are a priceless resource, but pollution from urban and agricultural areas pose a threat to our water quality. To understand the value of water quality, and to more effectively manage and protect the Nation's water resources, it's critical that we know the current status of water-quality conditions, and how and why those conditions have been changing over time....

Contacts: Lori Sprague
Attribution: Water Resources