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Potomac River Flow Well Above Average In June
Released: 7/8/1997

Contact Information:
U.S. Department of the Interior, U.S. Geological Survey
Office of Communication
119 National Center
Reston, VA 20192
Hannah Hamilton 1-click interview
Phone: 703-648-4460

Potomac River flow near Washington, D.C., was well above normal in June at 7.3 billion gallons per day (bgd), one and one-half times the normal flow for this time of year, according to the U.S. Geological Survey.

June flow ranged from a high of 24.7 bgd (June 5) to a low of about 2.6 bgd (June 30). Average flow in June is 5 bgd.

Freshwater flowing into Chesapeake Bay from the Potomac River and other tributaries totaled about 40.2 bgd, slightly less than the June average of 40.8 bgd.

Water in a USGS ground-water observation well in Montgomery County, Md., was about 12.4 ft below the land surface, about 0.3 ft above the long-term average for June, which is 12.7 ft below land surface.

In eastern and central Maryland, ground water levels decreased during June but remained above normal.

Diversions of Potomac River water for municipal use were the same as in June 1996, at about 418 million gallons per day.

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