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Water Levels Continued to Improve in June

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: July 6, 2001

Streamflow levels increased across most of Maryland and Delaware and in the Chesapeake Bay, according to hydrologists at the U.S. Geological Survey (USGS) in Baltimore, Maryland. The National Weather Service reported 3.53 inches of precipitation during June at BWI Airport, which was only 0.14 inches below normal. This rainfall has helped to recharge Groundwater and to maintain water storage in the Baltimore reservoir system at 99 percent of capacity.

Streamflow entering the Chesapeake Bay averaged 32.6 bgd (billion gallons per day) in June, which is 19 percent below the long-term average for June, but is an improvement over conditions in May. Streamflow from the Susquehanna River, which has the largest inflow of freshwater into the Bay, increased significantly from only 36 percent of average in May to 76 percent of average in June. Streamflow in the Potomac River near Washington, D.C., increased from May, and was 23 percent above the long-term average for June (see graphs at https://md.water.usgs.gov/monthly/bay.html).

Groundwater levels in water-table wells at the end of June were mostly in the normal to above-normal range for Maryland and Delaware, although a few wells in central Maryland and the Eastern Shore were below normal (see graphs 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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