PROVISIONAL DATA SUBJECT TO REVISION

STATION.--01583600  BEAVERDAM RUN AT COCKEYSVILLE, MD
LOCATION.--Lat 39°29'08.1", long 76°38'44.6", Baltimore County, Hydrologic Unit 02060003,  on left
   bank of bridge on Maryland Route 45 at Cockeysville, and 0.45 mi upstream from mouth.
DRAINAGE AREA.--20.9 mi2.
PERIOD OF RECORD.--October 1982 to current year.
REVISED RECORDS.--WDR MD-DE-88: 1983-87.
GAGE.--Water-stage recorder. Datum of gage is 240.42 ft above National Geodetic Vertical Datum of 1929. 
   Previously operated as a low-flow site during water years 1955-59 and 1962-64 at same site.
   Dec. 15, 1982 to June 15, 1993, water-stage recorder 600 ft downstream and 50 ft upstream from bridge
   on Beaverdam Run Lane at datum 1.38 ft lower.
REMARKS.--U.S. Geological Survey gage-height telemeter at station. Water-quality records for some prior
   periods have been collected at this location.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 3,360 ft3/s, Jul 1, 1984,
   gage height, 12.10 ft; minimum discharge, 2.5 ft3/s, Aug. 19, 20, 2002.
COOPERATION.--Funding for the operation of this station is provided by the Baltimore City Department of
   Public Works, and the U.S. Geological Survey.