MD-DE-DC Water Science Center
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...
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
Local Water Conditions
Explore real-time streamflow, groundwater, and water-quality conditions and access data for MD, DE, and DC with our new interactive map application. This application offers data displays on multiple device platforms with various basemap options.Local Water Conditions
Featured below are some popular features on the MD-DE-DC Water Science site. To better navigate our pages, please use the vertical header listing to the left side of this window.Jump into NWIS WEB!
Field work completed for powerful Hurricane Florence, while experts watch Isaac and Olivia
Editor's note: This story was originally published on Tuesday, Sept. 11 and was updated at noon on Wednesday, Sept. 12.
To learn more about USGS’ role providing science to decision makers before, during and after Hurricane Florence, visit the USGS Hurricane Florence page at https://www.usgs.gov/florence.
Bank‐derived material dominates fluvial sediment in a suburban Chesapeake Bay watershed
Excess fine sediment is a leading cause of ecological degradation within the Chesapeake Bay watershed. To effectively target sediment mitigation measures, it is necessary to identify and quantify the delivery of sediment sources to local waterbodies.This study examines the contributions of sediment sources within Upper Difficult Run, a...Cashman, Matthew J.; Gellis, Allen; Gorman Sanisaca, Lillian; Noe, Gregory; Cogliandro, Vanessa; Baker, Anna
Geomorphic characteristics of Tenmile Creek, Montgomery County, Maryland, 2014–16
Data collected from April 2014 through September 2016 were used to assess geomorphic characteristics and geomorphic changes over time in a selected reach of Tenmile Creek, a small rural watershed near Clarksburg, Maryland. Longitudinal profiles of the channel bed, water surface, and bank features were developed from field surveys. Changes in cross...Doheny, Edward J.; Baker, S. Matthew
Manure and fertilizer inputs to land in the Chesapeake Bay watershed, 1950–2012
Understanding changing nutrient concentrations in surface waters requires quantitative information on changing nutrient sources in contributing watersheds. For example, the proportion of nutrient inputs reaching streams and rivers is directly affected by when and where those nutrients enter the landscape. The goal of this report is to contribute...Keisman, Jennifer L.D.; Devereux, Olivia H.; LaMotte, Andrew E.; Sekellick, Andrew J.; Blomquist, Joel D.