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    All Maryland-Delaware-District of Columbia times are reported in Eastern Standard Time (EST). To convert to Eastern Daylight Time (EDT) add 1 hour.



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    LOCATION.--Lat 39°26'59.2", long 77°43'48.7", Washington County, Hydrologic Unit 02070004,
       on left bank 400 ft downstream from Burnside Bridge, 1.0 mi southeast of Sharpsburg, and 4.0 mi
       upstream from mouth. 
    DRAINAGE AREA.--281 mi2.
    PERIOD OF RECORD.--June 1897 to September 1905, August 1928 to current year. Monthly discharge only for
       some periods, published in WSP 1302.
    REVISED RECORDS.--WSP 192:  1897-1905.  WSP 726:  Drainage area.  WSP  1432:  1929-31(M), 1933, 1935(M),
       1937(M), 1949(M), 1952(M).
    GAGE.--Water-stage recorder and crest-stage gage. Concrete control since Mar. 29, 1934. Datum of gage is 310.40 ft above
       North American Vertical Datum of 1988. June 24, 1897, to Aug. 25, 1905, nonrecording gage a few hundred
       feet downstream from Middle Bridge, 1.2 mi upstream at gage datum 12 ft higher. Aug. 21, 1928, to July 13, 1933,
       nonrecording gage at Burnside Bridge, 0.1 mi upstream at present gage datum.
    REMARKS.--Since 1928 records include pumpage from the Potomac River for municipal supply of Hagerstown.
       This water later enters Antietam Creek upstream from station as sewage. Records adjusted for monthly and annual mean 
       inflow from January 1930 to September 2011. U.S. Geological Survey satellite data-collection platform at station.
    EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 12,600 ft3/s, July 20, 1956, gage height,
       16.73 ft; minimum discharge, 9.4 ft3/s, Nov. 22, 1957, result of construction work upstream from 
    COOPERATION.--Funding for the operation of this station is provided by the Maryland State Highway
       Administration, and the U.S. Geological Survey.
    Boating safety tips
    This station managed by the MD-DE-DC Water Science Center, Frostburg office.

    Available Parameters Available Period
    All 2 Available Parameters for this site
    00060 Discharge 2007-10-01  2014-08-23
    00065 Gage height 2014-04-25  2014-08-23

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    Summary of all available data for this site
    Instantaneous-data availability statement

    Discharge, cubic feet per second

    Most recent instantaneous value: 193   08-23-2014  03:30 EST
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    Daily discharge, cubic feet per second -- statistics for Aug 23 based on 83 years of record more
    Median Mean 75th
    Most Recent
    Value Aug 23
    43 112 140. 167 177 193 797

    Gage height, feet

    Most recent instantaneous value: 2.68   08-23-2014  03:30 EST
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