Unified Interior Regions

Maryland

Maryland's water supply comes from streams, rivers, groundwater and reservoirs. Many of these systems flow to the Chesapeake Bay, the Nation's largest estuary. This complex ecosystem has been degraded due to the impact of human-population increase. The MD-DC-DE Water Science Center studies the impacts this has on water quality, habitats and biological communities.

Maryland Water

Maryland - Delaware - Washington D.C. Water Science Center

Maryland -  Delaware - Washington D.C. Water Science Center

5522 Research Park Drive
Catonsville, MD 21228

Phone: 443-498-5500
Fax: 442-498-5510

MD-DE-DC Water

Patuxent Wildlife Research Center

Patuxent Wildlife Research Center

12100 Beech Forest Road
Laurel, MD 20708-4039

Phone: 301-497-5000

Patuxent Research

States L2 Landing Page Tabs

Filter Total Items: 104
Date published: September 1, 2015
Status: Active

USGS Enhances Statistical Techniques to Assess Water-Quality Trends

The USGS has completed more enhancements to our innovative technique to assess water-quality trends. The WRTDS (Weighted Regressions on Time Discharge and Season) method was first published in 2010 as an exploratory data analysis technique for understanding trends in surface water. Subsequently, we published the EGRET (Exploration and Graphics for RivEr Trends) software which implements the...

Date published: March 25, 2014
Status: Active

USGS leads STAC report on Land Management Effects on Water-Quality Status and Trends

The Chesapeake Bay is a degraded eutrophic ecosystem with periodic hypoxia and anoxia, algal blooms, diminished submerged aquatic vegetation, and depleted stocks of finfish, crabs, and oysters (Kemp et al. 2005).  Since 1983, the seven jurisdictions within the Chesapeake Bay watershed (Delaware, Maryland, New York, Pennsylvania, Virginia, West Virginia, and the District of Columbia) have...

Date published: December 15, 2013
Status: Active

USGS works with USDA and State Jurisdictions to Enhance Reporting of Agricultural Conservation Practices that Reduce Loss of Nutrients and Sediment in the Chesapeake Bay Watershed

The Chesapeake Bay Program (CBP) is working to enhance reporting of agricultural conservation practices being implemented to reduce the loss of nutrients and sediment from the watershed to Chesapeake Bay. Each year, the six State jurisdictions within the Chesapeake Bay watershed are required to report progress in conservation implementation to the CBP partnership at its Annual Progress Review...

Contacts: Scott Phillips
Date published: July 1, 2013
Status: Completed

USGS Works with Partners to Study and Summarize Health of Yellow Perch

The USGS works with U.S. Fish & Wildlife Service and Maryland Department of Natural Resources to summarize the effects of suburban lands and contaminants on the health of yellow perch in the Chesapeake Bay.

Contacts: Vicki Blazer
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
Date published: January 1, 2013
Status: Active

Determining Nutrient and Sediment Loads and Trends in the Chesapeake Bay Watershed by Using An Enhanced Statistical Technique

As the largest and most productive estuary in North America, Chesapeake Bay is a vital ecological and economic resource. In recent decades, however, the bay and its tributaries have been degraded by excessive inputs of nutrients (nitrogen and phosphorus) and sediment from contributing watersheds, and in 1998, the Chesapeake Bay and its tidal tributaries were listed as “impaired” under the...

Contacts: Scott Phillips
Date published: January 16, 2008
Status: Active

USGS summarizes information about the Chesapeake Bay and implications for ecosystem management (USGS Circular 1316)

The USGS released the Circular 1316: “Synthesis of U.S. Geological Survey Science for the Chesapeake Bay Ecosystem and Implications for Environmental Management”

Date published: October 1, 2003
Status: Completed

Bacteriological quality of groundwater used for household supply

In fractured bedrock aquifers used for domestic supply conditions can exist where contaminants such as bacteria are not filtered out by the soil. Once in the fracture system, little additional filtration takes place.

The results of a synotic sampling of domestic wells in the Lower Susquehanna River basin, Pennsylvania and Maryland, showed that bacteria concentrations were higher in...

The "Best Report" for 2014 is "Hydrogeologic characterization and assessment of bioremediation of chlorinated benzenes and benzene in wetland areas, Standard Chlorine of Delaware, Inc. Superfund Site, New Castle County, Delaware, 2009-12"

Hydrogeologic characterization and assessment of bioremediation of chlorinated benzenes and benzene in wetland areas
Filter Total Items: 204
USGS
November 14, 2005

Parking-lot sealants as toxics sources, Delaware River basin and New York harbor studies and what’s this about inter-sexed fish? These are among the topics U.S. Geological Survey (USGS) scientists will discuss at the Society of Environmental Toxicology and Chemistry meeting at the Baltimore, (Md.) Convention Center on Nov. 13-17. The meeting is expected to attract more than 2,500...

USGS science for a changing world logo
August 2, 2005

U.S. Geological Survey fisheries biologists in Gainesville, Fla., have confirmed the presence of the voracious non-native northern snakehead fish in Meadow Lake in Queens, N.Y. Five specimens have been collected by the New York State Department of Environmental Conservation from the lake in Flushing Meadows Corona Park since early July.

USGS science for a changing world logo
April 1, 2005

This prestigious award was presented to EROS in recognition of 34 years of continuous and dedicated service of the entire civil service and contractor staff of the Sioux Falls, S.D., National Center for its outstanding leadership and service in enabling access to and use of the Nation’s land remote sensing data.

USGS
April 1, 2005

Dr. Ghassem Asrar, National Aeronautics and Space Administration’s (NASA’s) Science Deputy Associate Administrator, and U.S. Geological Survey (USGS) Director, Dr. Charles "Chip" Groat, representing the Department of the Interior (DOI) made the 31st annual presentation of the William T. Pecora Award to the USGS National Center for Earth Resources Observation and Science...

USGS science for a changing world logo
November 23, 2004

A whooping crane that was shot earlier this month in Kansas is showing signs of recovery, although Dr. Glenn Olsen, the veterinarian treating the bird at the USGS Patuxent Wildlife Research Center in Laurel, Md., says it’s too soon to know whether it will be able to return to the wild. 

USGS
November 23, 2004

A whooping crane that was shot earlier this month in Kansas is showing signs of recovery, although Dr. Glenn Olsen, the veterinarian treating the bird at the USGS Patuxent Wildlife Research Center in Laurel, Md., says it’s too soon to know whether it will be able to return to the wild. 

USGS
September 30, 2004

What happens when a comet or asteroid more than a mile wide slams into the Earth at supersonic speed? U.S. Geological Survey (USGS) scientists, with help from students and professors from Virginia Tech University, are about to find out as they begin a seismic survey of the 35-million-year old Chesapeake Bay impact crater.

USGS science for a changing world logo
September 16, 2004

The U.S. Geological Survey alerted state and federal agencies today to the increased potential for landslides in the mountainous regions of Georgia, Alabama, Tennessee, Kentucky, Pennsylvania, South Carolina, North Carolina, Virginia, West Virginia, Ohio and Maryland due to anticipated heavy rainfall from Hurricane Ivan.

USGS
September 16, 2004

The U.S. Geological Survey alerted state and federal agencies today to the increased potential for landslides in the mountainous regions of Georgia, Alabama, Tennessee, Kentucky, Pennsylvania, South Carolina, North Carolina, Virginia, West Virginia, Ohio and Maryland due to anticipated heavy rainfall from Hurricane Ivan.

USGS science for a changing world logo
May 14, 2004

America’s rivers and streams are generally suitable for irrigation, supplying drinking water, and home and recreational uses. However, in areas with significant agricultural and urban development, the quality of our nation’s water resources has been degraded by contaminants such as pesticides, nutrients, and gasoline-related compounds.

USGS
May 14, 2004

America’s rivers and streams are generally suitable for irrigation, supplying drinking water, and home and recreational uses. However, in areas with significant agricultural and urban development, the quality of our nation’s water resources has been degraded by contaminants such as pesticides, nutrients, and gasoline-related compounds.

USGS science for a changing world logo
February 18, 2004

Slow-moving ground water slows down water-quality improvements in Chesapeake Bay Ground water supplies about half of the water and nitrogen to streams in the Chesapeake Bay watershed and is therefore an important pathway for nitrogen to reach the bay, according to a recent U.S. Geological Survey (USGS) study. Too many nutrients, most of all nitrogen, are the principal cause for poor water-quality.

Maryland - Delaware - Washington D.C. Water Science Center

Maryland -  Delaware - Washington D.C. Water Science Center

5522 Research Park Drive
Catonsville, MD 21228

Phone: 443-498-5500
Fax: 442-498-5510

MD-DE-DC Water

Patuxent Wildlife Research Center

Patuxent Wildlife Research Center

12100 Beech Forest Road
Laurel, MD 20708-4039

Phone: 301-497-5000

Patuxent Research