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White Heron in Marsh
Date Published: January 1, 2016
Status: Active

Chesapeake Bay Water-Quality Loads and Trends


Explore resources here describing water-quality load and trend results for nontidal rivers of the Chesapeake Bay watershed.

The health of the Chesapeake Bay is largely driven by changes in streamflow and the amount of pollution it contains. Runoff in the Chesapeake Bay watershed carries pollutants, such as nutrients and sediments, to rivers and streams that...

View of the Chesapeake Bay
Date Published: January 16, 2013
Status: Completed

EPA, USGS, with USFWS Release New Report on the Extent and Severity of Toxic Contaminants in the Chesapeake Bay and its Watershed

Report summarizing existing information on the extent and severity of the occurrence of toxic contaminants in the Chesapeake Bay and its watershed.

Contacts: Scott Phillips
Filter Total Items: 174
USGS science for a changing world logo
August 23, 2011

A magnitude 5.8 earthquake struck the National Capital Area on Tuesday, August 23, at 1:51p.m. (EDT), causing moderate shaking and potentially significant damage, and was felt throughout Northern Virginia and neighboring areas. No casualties are expected.

USGS science for a changing world logo
July 26, 2011

U.S. Geological Survey Chesapeake Bay studies scientists Peter Claggett, Vicki Blazer, and Alicia Berlin will discuss the new science and cooperative efforts being applied to understand the factors contributing to ecosystem health and to restoring the nation’s largest estuary and its watershed. 

USGS science for a changing world logo
July 15, 2011

A manatee spotted this week in Calvert County, Maryland is the same one that first made waves 17 years ago when he appeared in Chesapeake Bay just before the onset of winter and later had to be rescued.

USGS science for a changing world logo
May 23, 2011

The most recent USGS Earth as Art exhibit, the third in the series of award-winning Landsat satellite images, will be on display at the Library of Congress beginning May 31. 

September 27, 2010

USGS mapping, and in particular, the history, richness and diversity of topographic mapping, was recently recognized and honored at the 2010 International Map and Trade Association Conference at Washington D.C.

September 17, 2010

USGS will brief Congress, the media and the public on nutrient concentrations in the Nation's water resources, key sources of nutrients, potential effects on humans and aquatic life, and changes in concentrations since the early 1990’s. 

September 15, 2010

Reducing the delivery of nutrients to the Chesapeake Bay is one of the most important components of restoration efforts to achieve a healthy Bay ecosystem. The USGS has developed a new method for tracking the progress toward reducing nitrogen and phosphorus delivery from the watershed to the Bay.

September 7, 2010

The Potomac River in Washington, D.C. is showing multiple benefits from restoration efforts, newly published research suggests. Reduced nutrients and improved water clarity have increased the abundance and diversity of submerged aquatic vegetation (SAV) in the Potomac, according to direct measurements taken during the 18-year field study.

July 19, 2010

Decision makers need a toolbox full of ideas to understand the large-scale impacts of their choices—to secure water for cities and wildlife, to adapt to climate change, to meet the nation's energy needs and to better conserve biodiversity.

May 14, 2010

More than one-third of the nation’s population uses drinking water from public water systems that rely on groundwater pumped from public wells. The U.S. Geological Survey has collected data nationwide on water-quality in public wells.

May 12, 2010

In the United States, 1 in 4 people live with the risk of earthquakes. The U.S. Geological Survey and its partners are designing innovative tools to better detect earthquakes and share critical information. The involvement of citizens is key, as decisions made before and immediately after an earthquake can save lives and protect property.

March 23, 2010

Science requires perspective and objectivity. The U.S. Geological Survey provides both with data from the Landsat series of satellites. Multispectral imagery from Landsat – unique among the world’s observation satellites in its coverage, versatility, and continuity – fuels advanced research about the state of the Earth. Since 2008, when the images were made available free of...