USGS Maryland-Delaware-D.C. Water Science Center
The USGS Maryland-Delaware-District of Columbia Water Science Center provides current real-time data on surface water, ground water, streamflow, and water quality from sites throughout the MD-DE-DC area. The center also has a number of reports covering water conditions, freshwater use, the Chesapeake Bay, historical data, and other topics.
USGS Water Science Centers are located in each state, producing data for the 50 states, U.S. territories, and the District of Columbia.
Phone: (443) 498-5500