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LOCATION.--Lat 39°30'38.8", long 76°40'35.4", Baltimore County, MD, Hydrologic Unit 02060003, on right bank 100 ft downstream from bridge on Western Run Road, 0.3 mi southeast of Western Run, 2.5 mi northwest of Cockeysville, 3.2 mi upstream from Beaverdam Run, and 5.0 mi upstream from mouth. DRAINAGE AREA.--59.8 mi2. PERIOD OF RECORD.--September 1944 to current year. REVISIONS HISTORY.--WSP 1502: 1945-46, 1948(M). GAGE.--Water-stage recorder and crest-stage gage. Datum of gage is 262.08 ft above North American Vertical Datum of 1988. REMARKS.--U.S. Geological Survey satellite data-collection platform at station. Water-quality records for some prior periods have been collected at this location. EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 38,000 ft3/s, June 22, 1972, gage height, 26.00 ft; minimum discharge, 2.4 ft3/s, Sept. 12, 1966. COOPERATION.--Funding for the operation of this station is provided by the Baltimore City Department of Public Works, and the U.S. Geological Survey.