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For information about dam operations, call 1-888-457-4076 or contact Exelon Energy (http://www.exeloncorp.com/)
LOCATION.-- Lat 39°39'28.4", long 76°10'28.0", Harford County, MD, Hydrologic Unit 02050306, 1.0 mi southwest of Conowingo, and 9.9 mi upstream from mouth. DRAINAGE AREA.--27,100 mi2 PERIOD OF RECORD.--October 1967 to current year. GAGE.--Water-stage recorder. Datum of gage is 4.16 ft above North American Vertical Datum of 1988. REMARKS.--Flow regulated by Conowingo Reservoir beginning October 1928, usable capacity, 55,070,000,000 gal; dead storage, 45,290,000,000 gal. Records do not include a small infrequent diversion upstream from station to augment municipal supply of city of Baltimore. Records of diversion available from Baltimore City Department of Public Works. U.S. Geological Survey satellite data-collection platform at station. EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 1,130,000 ft3/s, June 24, 1972, gage height, 36.83 ft; minimum discharge, 144 ft3/s, Mar. 2, 1969. COOPERATION.--Funding for the operation of this station is provided by the Exelon Energy Corporation, and the U.S Geological Survey. Access to gage site provided by Exelon Energy Corporation.
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