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STATION.--01582500 GUNPOWDER FALLS AT GLENCOE, MD
LOCATION.--Lat 39°32'58.9", long 76°38'10.0", Baltimore County, Hydrologic Unit 02060003, on right
downstream wingwall of bridge on Glencoe Road at intersection of Upper Glencoe Road and Lower Glencoe Road
in Glencoe, and 0.7 mi upstream from Piney Creek.
DRAINAGE AREA.--160 mi2.
PERIOD OF RECORD.--October 1977 to June 1980, December 1982 to current year.
GAGE.--Water-stage recorder and crest-stage gage. Elevation of gage is 250 ft above National Geodetic
Vertical Datum of 1929, from topographic map.
REMARKS.--Flow regulated by Prettyboy Reservoir, 12 mi upstream, beginning Apr. 10, 1933, for water
supply of Baltimore City (usable capacity, 20,000,000,000 gal; dead storage, 1,080,000,000 gal).
U.S. Geological Survey gage-height telemeter at station.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 6,110 ft3/s, Sep. 6, 1979,
gage height, 15.30 ft; minimum discharge, 30 ft3/s, Sep. 3, 1999.
COOPERATION.--Funding for the operation of this station is provided by the Baltimore City Department of
Public Works, and the U.S. Geological Survey.
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