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All data collected by the USGS Water Science Center for MD-DE-DC are reported in Eastern Standard Time (EST).
To convert from EST 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  2015-10-08
00065 Gage height 2015-06-10  2015-10-08

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Instantaneous-data availability statement

Discharge, cubic feet per second

Most recent instantaneous value: 146   10-08-2015  12:30 EST
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Daily discharge, cubic feet per second -- statistics for Oct 8 based on 85 years of record more
Median Most Recent
Value Oct 8
Mean 75th
68 99 121 146 160 171 718

Gage height, feet

Most recent instantaneous value: 2.50   10-08-2015  12:30 EST
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