MD-DE-DC Water Science Center

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The water resources of Maryland, Delaware, and the District of Columbia consist of numerous streams, springs, lakes, and aquifer systems. Streamflow, groundwater levels, and water-quality data are collected at numerous locations, and water-use data are collected throughout the area in cooperation with other federal, state and local agencies, universities, and research centers...

Water Science for Maryland, Delaware and Washington, DC

Chesapeake Bay Activities

Chesapeake Bay Activities

The USGS has the critical role to provide scientific information for the improved understanding and management of the Bay ecosystem. The USGS works with Federal, State, and academic science partners to provide research, assessment, and monitoring.

USGS Chesapeake Bay

News

Baltimore Harbor Water Wheel (aka “Mr. Trash Wheel”)
October 14, 2016

Online sites will provide the first real-time, user-friendly Inner Harbor water information

Stream Gage in Maryland
July 13, 2016

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.

For more information, see http://md.water.usgs.gov/usgs-news.html

 

Publications

Year Published: 2017

Water quality in the surficial aquifer near agricultural areas in the Delaware Coastal Plain, 2014

The U.S. Geological Survey, in cooperation with the Delaware Department of Agriculture, developed a network of wells to monitor groundwater quality in the surficial aquifer of the Delaware Coastal Plain. Well-drained soils, a flat landscape, and accessible water in the Delaware Coastal Plain make for a productive agricultural setting. As such,...

Fleming, Brandon J.; Mensch, Laura L.; Denver, Judith M.; Cruz, Roberto M.; Nardi, Mark R.
Fleming, B.J., Mensch, L.L., Denver, J.M., Cruz, R.M., and Nardi, M.R., 2017, Water quality in the surficial aquifer near agricultural areas in the Delaware Coastal Plain, 2014: U.S. Geological Survey Scientific Investigations Report 2017–5054, 28 p., https://doi.org/10.3133/sir20175054.

Year Published: 2017

Determining the sources of fine-grained sediment using the Sediment Source Assessment Tool (Sed_SAT)

A sound understanding of sources contributing to instream sediment flux in a watershed is important when developing total maximum daily load (TMDL) management strategies designed to reduce suspended sediment in streams. Sediment fingerprinting and sediment budget approaches are two techniques that, when used jointly, can qualify and quantify the...

Gorman Sanisaca, Lillian E.; Gellis, Allen C.; Lorenz, David L.
Gorman Sanisaca, L.E., Gellis, A.C., and Lorenz, D.L., 2017, Determining the sources of fine-grained sediment using the Sediment Source Assessment Tool (Sed_SAT): U.S. Geological Survey Open File Report 2017–1062, 104 p., https://doi.org/10.3133/ofr20171062.

Year Published: 2017

Optimal hydrograph separation using a recursive digital filter constrained by chemical mass balance, with application to selected Chesapeake Bay watersheds

Quantitative estimates of base flow are necessary to address questions concerning the vulnerability and response of the Nation’s water supply to natural and human-induced change in environmental conditions. An objective of the U.S. Geological Survey National Water-Quality Assessment Project is to determine how hydrologic systems are affected by...

Raffensperger, Jeff P.; Baker, Anna C.; Blomquist, Joel D.; Hopple, Jessica A.
Raffensperger, J.P., Baker, A.C., Blomquist, J.D., and Hopple, J.A., 2017, Optimal hydrograph separation using a recursive digital filter constrained by chemical mass balance, with application to selected Chesapeake Bay watersheds: U.S. Geological Survey Scientific Investigations Report 2017–5034, 51 p., https://doi.org/10.3133/sir20175034.