District of Columbia

States L2 Landing Page Tabs

Filter Total Items: 36
GPS record point for SET at Acadia National Park, ME
Date Published: September 14, 2017
Status: Completed

Bioremediation in Wetland Areas, Standard Chlorine of Delaware Inc. Superfund Site, Delaware City, Delaware

Major releases of chlorinated benzenes and benzene are known to have occurred at the Standard Chlorine of Delaware Inc. Superfund Site from 1966-2002, resulting in contamination of the groundwater underlying the site and the wetlands surrounding Red Lion Creek.

Although installation of a groundwater interception and treatment system has been completed around the main facility, wetland...

Contacts: Michelle Lorah
Sea Level Rise in Delmarva Peninsula
Date Published: September 8, 2017
Status: Active

Coastal Monitoring Tide Gage Sites in Maryland, Delaware, and Washington, D.C.

Vital coastal storm-tide information needed to help guide storm response efforts following major storms affecting Maryland will be more accessible than ever due to a new monitoring network the U.S. Geological Survey is currently building. 

A team from the USGS MD-DE-DC Water Science Center is surveying 63 locations in the state, determining their elevations and installing receiving...

Loch Raven Dam, Baltimore County, MD
Date Published: September 6, 2017
Status: Completed

Water Use

The U.S. Geological Survey (USGS) estimates water use by state, source of water, and category of use every 5 years. The withdrawals for Maryland, Delaware, and the District of Columbia are available in the tables below.

In 2010, 1,472 million gallons per day (Mgal/d) of freshwater were withdrawn from surface water and groundwater sources in Maryland, 300 Mgal/d in Delaware, and 0.10...

Contacts: Wendy McPherson
Sampling at Buck's Branch, Delaware
Date Published: September 6, 2017
Status: Completed

Monitoring Water-Quality Response of Conservation Practices in the Bucks Branch Watershed, Sussex County, Delaware

The Bucks Branch sub watershed in the Nanticoke River basin has been identified as having one of the highest concentrations of nitrate in surface water of all sites sampled in Delaware. 

Changes in water quality related to changes in agricultural conservation practices will be seen first in shallow groundwater as groundwater is the major source of nitrate in surface water. 


Cherry Blossoms in Washington, DC
Date Published: August 30, 2017
Status: Active

Hydrogeology and Groundwater Quality of the Anacostia River Watershed

The Anacostia River has been subjected to dredging, filling, contamination, and other human influences for over 200 years. The result of these activities is that the river has been seriously degraded from its natural state. Many groups have been working to reduce the effects of environmental degradation on the water quality and living resources of the Anacostia River, primarily by focusing on...

Contacts: Cheryl Dieter
Flowing groundwater site in Indiana
Date Published: August 30, 2017
Status: Active

MD-DE-DC WSC Groundwater Studies Team

The U.S. Geological Survey provides unbiased, timely, and relevant information, studies, and data about groundwater resources of the Nation. The USGS monitors groundwater levels in thousands of wells across the U.S.  Hundreds of these wells are located in MAryland, Delaware, and the District of Columbia.  The MD-DE-DC Water Science Center logs data on approximately 370 groundwater wells...

East down the Susquehanna River
Date Published: April 27, 2017
Status: Active

Summary of Nutrient and Sediment Loads and Trends in the Cheseapeake Watershed

Changes in nitrogen, phosphorus, and suspended-sediment loads in rivers across the Chesapeake Bay watershed have been calculated using monitoring data from the Chesapeake Bay Nontidal Water-Quality Monitoring Network (NTN). These results are used to help assess efforts to decrease nutrient and sediment loads being delivered to the bay. Additional information for each monitoring station is...

Image shows a map of the Chesapeake Bay watershed.
Date Published: April 27, 2017
Status: Completed

Load and Trends Results Through Water Year 2015

Changes in nitrogen, phosphorus, and suspended-sediment loads in rivers across the Chesapeake Bay watershed have been calculated using monitoring data from the nine Chesapeake Bay River Input Monitoring (RIM) stations.  

Genetic diversity is critical to the success of captive breeding programs
Date Published: March 16, 2017

Population Genetics and Emergency Management of Two Kauai Island Endangered Species

The Challenge: The Akeke’e (Loxops caeruleirostris) and the Akikiki (Oreomystis bairdi), two species of Hawaiian honeycreeper, are critically endangered bird species endemic to high elevation ohia forests on the Hawaiian island of Kauai.  Both species have suffered severe population declines and range contractions in recent decades.  Akeke’e are currently thought to number ca. 950 wild...

Canada Goose (Branta canadensis)
Date Published: March 14, 2017
Status: Active

Analyzing the Gut Microbiome of Urban Canada Geese

The Challenge: The Canada Goose Branta canadensis was historically a highly migratory species.  However, this species has recently established resident populations in urban, suburban, and agricultural areas in many parts of the U.S., including the Chesapeake Bay region.  The enormous success of these populations has led to consideration of this species as a nuisance, largely due to its...

Gunpowder River
Date Published: September 28, 2016

Geomorphic Responses to Stream Channel Restoration at Minebank Run, Baltimore County, Maryland

Urban streams frequently undergo severe incision and erosion due to flashy streamflows caused by impervious surfaces in the watershed. The study was designed to investigate the hydrodynamics and geomorphology of a selected reach of Minebank Run before and after stream restoration, in order to determine the effect that stream restoration had on sediment processes in the stream.

Storm on Nanticoke River, MD
Date Published: September 28, 2016

Surge, Wave, and Tide Hydrologic (SWaTH) Network in Maryland, Delaware, and the District of Columbia

Many U.S. Geological Survey Water Science Centers have responsibilities for coastal regions within their mission areas. The integrated Surge, Wave, and Tide Hydrologic (SWaTH) Network has been developed in the wake of Hurricane Sandy to support model development and verification for coastal regions, detection of hydrologic trends, and early warning of hydrologic hazards in the northeast from...

Filter Total Items: 13
Small Scale Collection USA
April 12, 2016

The National Map offers a collection of small-scale datasets, most of which are at 1:1,000,000. The National Map publishes two data collections at one million-scale: one for Global Map users and one for National Map users. In terms of vector geometry, the lines, points, and areas in these data collections are identical. The difference is in the attributes assigned to these features.

Filter Total Items: 172
December 1, 2015

A newly published, three-volume “Remote Sensing Handbook” is a comprehensive coverage of all remote sensing topics written by over 300 leading global experts.

May 11, 2015

Working directly with resource managers to produce science and tools to address effects of climate change on the nation’s biological resources should remain the core focus of the Interior Department’s Climate Science Centers, according to a federal advisory committee report released today. 

March 12, 2015

Excess fertilizer and manure applied to the Chesapeake Bay’s Eastern Shore are causing poor water-quality in streams that flow into the Bay, according to a new publication by the U.S. Geological Survey. 

Image: Ready for Action
December 15, 2014

Average chloride concentrations often exceed toxic levels in many northern United States streams due to the use of salt to deice winter pavement, and the frequency of these occurrences nearly doubled in two decades.

October 15, 2014

Three years after a magnitude 5.8 earthquake caused $25 million worth of damage to its pinnacles, buttresses and ceilings, the Washington National Cathedral will host earthquake experts from the U.S. Geological Survey (USGS), the Federal Emergency Management Agency (FEMA), and the Great ShakeOut earthquake drill. 

collage of scientists conducting science related to each mission are
October 14, 2014

Thirty seismometers are being installed in the Nation’s capital this winter to monitor ground tremors to better estimate the intensity of ground shaking that can be expected during future earthquakes in the area.

October 9, 2014

A press conference will be held on October 14, 2014 in recognition of the upcoming International ShakeOut Day of Action. On October 16, nearly 25 million people (2 million in the SouthEast region) are expected to participate in the world’s largest earthquake drill.

collage of scientists
September 15, 2014

Department of the Interior scientists are generating and sharing critical information to aid the recovery of the areas impacted by Hurricane Sandy, helping to protect our valuable coastal resources and to make communities more resilient against future extreme storms.

August 4, 2014

Vital coastal storm-tide information needed to help guide storm response efforts following major storms affecting District of Columbia will be more accessible than ever due to a new monitoring network the U.S. Geological Survey is currently building.

June 25, 2014

On the one-year anniversary of President Obama’s Climate Action Plan, Secretary of the Interior Sally Jewell today released a new report showing that forests, wetlands and farms in the eastern United States naturally store 300 million tons of carbon a year (1,100 million tons of CO2 equivalent).

May 13, 2014

Stronger storms, rising seas, and flooding are placing hundreds of millions people at risk around the world, and big part of the solution to decrease those risks is just off shore. A new study finds that coral reefs reduce the wave energy that would otherwise impact coastlines by 97 percent.

April 9, 2014

Oyster aquaculture in the Potomac River estuary could result in significant improvements to water quality, according to a new NOAA and U.S. Geological Survey study published in the journal Aquatic Geochemistry.