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Streamflow Still Low in Maryland in January

U.S. Department of the Interior
U.S. Geological Survey

Contact:
Wendy McPherson (wsmcpher@usgs.gov)
Maryland-Delaware-D.C. Water Science Center
5522 Research Park Drive
Baltimore, MD 21228
Phone:(443)498-5500
FAX: (443)498-5510

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Updated: February 6, 2001

January streamflow across Maryland and Delaware ranged from 58 percent below normal at the Potomac River near Washington, D.C., to 16 percent below normal at the Choptank River near Greensboro on the Eastern Shore, according to hydrologists at the U.S. Geological Survey (USGS) in Baltimore, Maryland. The National Weather Service reports slightly below-average precipitation in January, with 2.68 inches at BWI airport (0.37 inches below normal). Streamflow entering the Chesapeake Bay during January averaged 23.9 bgd (billion gallons per day), which is 59 percent below the long-term average (see graphs at https://md.water.usgs.gov/monthly/bay.html).

Storage in the Baltimore reservoir system decreased in January (from 97 percent) and was 85 percent of capacity at the end of the month. Groundwater levels decreased, but were generally in the normal range for Maryland and Delaware. Monthly updates of Groundwater conditions for 32 key observation wells that represent all counties of Maryland and Delaware can be accessed at https://md.water.usgs.gov/groundwater/.

As the Nation's largest water, earth and biological science, and civilian mapping agency, the USGS works in cooperation with more than 2,000 organizations across the country to provide reliable, impartial scientific information to resource managers, planners, and other customers. This information is gathered in every state by USGS scientists to minimize the loss of life and property from natural disasters, contribute to the sound conservation and the economic and physical development of the nation's natural resources, and enhance the quality of life by monitoring water, biological, energy, and mineral resources.

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