Water Resources

Filter Total Items: 355
Date published: February 27, 2019
Status: Active

Linking Selenium Sources to Ecosystems: Refining

The San Francisco Bay-Delta receives selenium (Se) internally from oil refineries and externally through riverine agricultural discharges. Predator species considered at risk from Se consume the estuary’s dominant bivalve, C. amurensis, an efficient bioaccumulator of Se. Modeling predicts site-specific ecological risk and derives a range of protective Se concentrations for use by decision-...

Contacts: Theresa Presser, Joseph P. Skorupa
Attribution: Water Resources
Date published: February 27, 2019
Status: Completed

National Water-Quality Assessment (NAWQA): 1991-2012

In 1991, Congress established the National Water-Quality Assessment (NAWQA) Project to address where, when, why, and how the Nation's water quality has changed, or is likely to change in the future, in response to human activities and natural factors. This page discusses the first two decadal cycles of NAWQA research from 1991 through 2012.

Date published: February 27, 2019
Status: Active

Linking Selenium Sources to Ecosystems: Modeling

Selenium (Se) as a contaminant of ecosystems is bioaccumulative and causes reproductive effects in fish and wildlife. Ecosystem-scale Se modeling predicts Se bioaccumulation based on dietary biodynamics within site-specific food webs. The model can be used to forecast Se toxicity under different management or regulatory proposals or to translate a tissue guideline to a dissolved guideline. ...

Contacts: Theresa Presser, Joseph P. Skorupa
Attribution: Water Resources
Date published: February 27, 2019
Status: Active

Water-Use Terminology

The following terms have been used in one or more of the water-use publications. The ...

Date published: February 27, 2019
Status: Completed

Hurricane Florence

Hurricane Florence was a long-lived Category 4 hurricane that impacted Cape Verde, the Bahamas, and the southeastern U.S. Hurricane Florence caused substantial flooding in North and South Carolina, primarily from freshwater flooding.

Attribution: Water Resources
Date published: February 27, 2019
Status: Completed

Hurricane Nate

Hurricane Nate affected Central America and the U.S. Gulf Coast from Oct. 4-11, 2017, making U.S. landfall near the mouth of the Mississippi River in Louisiana.

Date published: February 27, 2019
Status: Completed

Hurricane Maria

Hurricane Maria had devastating effects on the Carribean region including Puerto Rico, which took a direct hit as the Category Four hurricane crossed the entire island on Sept. 20, 2017.

Date published: February 27, 2019
Status: Completed

Hurricane Jose

Although Hurricane Jose had weakened to a tropical storm by the time it affected the U.S. from September 20-26, 2017, it generated large waves and storm surge from Florida to New England.

Date published: February 27, 2019
Status: Completed

Hurricane Irma

Hurricane Irma was an extrememly powerful Category 5 hurricane that affected southeastern U.S. states and numerous Caribbean islands from Aug. 30 to Sept. 11, 2017.

Date published: February 27, 2019
Status: Completed

Hurricane Harvey

On August 25, 2017, Hurricane Harvey struck Texas as a Category 4 storm, causing an estimated $125 billion in damage.

Date published: February 27, 2019
Status: Completed

Hurricane Matthew

Hurricane Mathew was a Category 5 storm that caused widespread destruction from Sept. 28 to Oct. 10, 2016, in the southeastern U.S., the Bahamas, and the Greater Antilles.

Date published: February 26, 2019
Status: Completed

August-September 2014 Southwest Floods

Learn more about USGS flood activities related to the August-September 2014 Floods, caused by heavy rains followed by remnants of Hurricane Odile which brought major flooding to parts of Arizona.