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USGS 01591000 PATUXENT RIVER NEAR UNITY, MD

PROVISIONAL DATA SUBJECT TO REVISION

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LOCATION.--Lat 39°14'17.7", long 77°03'20.6", Montgomery County, MD, Hydrologic Unit 02060006, on right
   bank at downstream side of bridge on State Highway 97, 0.6 mi upstream from Cattail Creek, 0.8 mi
   upstream from Triadelphia Reservoir, 1.1 mi northeast of Unity, and 97 mi upstream from mouth.
DRAINAGE AREA.--34.8 mi2.
PERIOD OF RECORD.--July 1944 to current year.
REVISIONS HISTORY--WSP 1111: 1947. WSP 1432: 1948. https://waterdata.usgs.gov/nwis/dv/?site_no=01591000: 2013.
GAGE.--Water stage recorder, crest-stage gage and concrete control. Datum of gage is 364.04 ft above 
   North American Vertical Datum of 1988. Prior to Aug. 14, 1946, non-recording gage at same site and gage datum.
REMARKS.--U.S. Geological Survey satellite data-collection platform at station.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 21,800 ft3/s, Sept. 11, 1971, gage height, 18.60 ft;
   minimum discharge, 0.20 ft3/s, Sept. 10-12, 1966.
COOPERATION.--Funding for the operation of this station is provided by the Washington Suburban Sanitary
   Commission, and the U.S. Geological Survey.
Boating safety tips
This station managed by the MD-DE-DC Water Science Center Baltimore office.

Available Parameters Period of Record
  
1944-07-20  2019-11-10







 (365)
 

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


Discharge, cubic feet per second


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