PROVISIONAL DATA SUBJECT TO REVISION

STATION.--01601500 WILLS CREEK NEAR CUMBERLAND, MD
LOCATION.--Lat 39°40'10.6", long 78°47'16.9", Allegany County, Hydrologic Unit 02070002,
   on right bank at downstream side of Western Maryland Railway bridge, 0.15 mi downstream from Braddock Run,
   2.0 mi upstream from Cumberland and mouth.
DRAINAGE AREA.--247 mi2.
PERIOD OF RECORD.--May 1905 to July 1906 (published as "at Cumberland"), October 1929 to
   current year.
GAGE.--Water-stage recorder. Datum of gage is 640.89 ft above National Geodetic Vertical Datum of 1929.
   May 6, 1905, to July 14, 1906, nonrecording gage at highway bridge 700 ft upstream at different datum.
   Oct. 18, 1929, to Mar. 17, 1936, water-stage recorder, and Apr. 1, 1936, to Mar. 19, 1937, nonrecording gage
   at site 200 ft upstream at present datum.
REMARKS.--Records include drainage from  numerous active and abandoned coal mines. An undetermined amount
   of water is diverted into the basin from Georges Creek basin by  Hoffman drainage tunnel.  Miscellaneous
   measurements of discharge  from the Hoffman drainage tunnel have been made in the water years 1944, 1964-65,
   1967-82, and 1984 by the U.S. Geological Survey, and in the water years 1958 and 1959 by the Maryland
   Geological Survey. Slight diurnal fluctuation at low flow caused by quarry upstream. U.S. Army Corps of Engineers
   satellite collection platform at station.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 45,900 ft3/s, Jan. 19, 1996,
   gage height, 23.11 ft, present site and datum; minimum discharge, 9.0 ft3/s, Oct. 14, 1930.
COOPERATION.--Funding for the operation of this station is provided  by the U.S. Army Corps of Engineers,
   and the U.S. Geological Survey.