USGS Current Conditions for USGS 01645000 SENECA CREEK AT DAWSONVILLE, MD

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USGS 01645000 SENECA CREEK AT DAWSONVILLE, MD

PROVISIONAL DATA SUBJECT TO REVISION

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LOCATION.--Lat 39°07'41.1", long 77°20'08.8", Montgomery County, Hydrologic Unit 02070008, on
   right bank at bridge on State Highway 28, 150 ft downstream from mouth of Great Seneca Creek,
   0.5 mi east of Dawsonville, and 5.8 mi upstream from mouth.
DRAINAGE AREA.--101 mi².
PERIOD OF RECORD.--September 1930 to current year.
REVISIONS HISTORY.--WSP 726: Drainage area. WSP 1232: 1930. WSP 1272: 1933. WSP 1432: 1934-35(M), 1941(M).
   WDR MD-DE-74-1: 1970(M), WDR MD-DE-DC-03-1: 2002(M).
GAGE.--Water-stage recorder and crest-stage gage. Concrete control since March 3, 1934. Datum of gage is
   213.31 ft above North American Vertical Datum of 1988. Sept. 26 to Nov. 9, 1930, chain gage, and Nov. 10, 1930
   to Apr. 6, 1934, water-stage recorder, at highway bridge 60 ft upstream at same gage datum.
REMARKS.--Small diversion at times for irrigation upstream from station. 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, 26,100 ft³/s, June 22, 1972,
   gage height, 16.40 ft; minimum discharge, 1.7 ft³/s, Sept. 28, 29, 1930.
COOPERATION.--Funding for the operation of this station is provided by the Interstate Commission on the
   Potomac River Basin, and the U.S. Geological Survey.