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* IMPORTANT: Next Generation Station Page

USGS 01658000 MATTAWOMAN CREEK NEAR POMONKEY, MD

PROVISIONAL DATA SUBJECT TO REVISION

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LOCATION.-- Lat 38°35'46.1", long 77°03'21.7", Charles County, MD, Hydrologic Unit 02070011,
   on bank at left downstream side of bridge on State Highway 227, 30 ft downstream from Old
   Womans Run, 1.2 mi southeast of Pomonkey, and 12.6 mi upstream from mouth.
DRAINAGE AREA.--54.8 mi2.
PERIOD OF RECORD.--November 1949 to September 1972. Annual maximums, water years 1973-86. 
   January 2001 to current year.
REVISIONS HISTORY.--WDR MD-DE-DC-02-1.
GAGE.--Water-stage recorder, crest-stage gage and concrete control. Datum of gage is 39.76 ft 
   above North American Vertical Datum of 1988.
REMARKS.--Low flow affected by ground-water diversions from municipal well fields at Waldorf and 
   St. Charles. U.S. Geological Survey satellite data-collection platform at station.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 9,300 ft3/s, Aug. 13, 1955, gage height, 7.52 ft;
   minimum discharge, 0.0 ft3/s, no flow at times in each year.
COOPERATION.--Funding for the operation of this station is provided by the Maryland
   Geological Survey and the U.S. Geological Survey.
 
Boating safety tips
This station managed by the MD-DE-DC Water Science Center Baltimore office.

Available Parameters Available Period
  
2007-10-31  2011-06-27
2001-01-24  2019-11-20
2007-10-01  2019-11-20
2007-10-31  2011-06-27
2007-10-31  2011-06-27
2007-10-31  2011-06-27
2007-10-31  2011-06-27







 (7)
 

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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: 13.5 11-20-2019   16:45 EST
Graph of  Discharge, cubic feet per second

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Daily discharge, cubic feet per second -- statistics for Nov 20 based on 39 water years of record more
Min
(1955)
25th
percen-
tile
Most Recent
Instantaneous
Value Nov 20
Median Mean 75th
percen-
tile
Max
(2004)
0.00 5.8 13.5 16 40 46 295


Gage height, feet

Most recent instantaneous value: 2.19 11-20-2019   16:45 EST
Graph of  Gage height, feet

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