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USGS 01638500 POTOMAC RIVER AT POINT OF ROCKS, MD

  Stream Site

DESCRIPTION:
Latitude 39°16'24.9",   Longitude 77°32'35.2"   NAD83
Frederick County, Maryland, Hydrologic Unit 02070008
Drainage area: 9,651 square miles
Datum of gage: 199.92 feet above   NAVD88.
AVAILABLE DATA:
Data Type Begin Date End Date Count
 Current / Historical Observations     (availability statement)    1972-05-24  2017-07-28  
 Daily Data
    Discharge, cubic feet per second  1895-02-01  2017-07-27  44737 
    Suspended sediment concentration, milligrams per liter  1960-10-01  1993-04-18  11851 
    Suspended sediment discharge, short tons per day  1960-10-01  1993-04-18  11522 
 Daily Statistics 
    Discharge, cubic feet per second  1895-02-01  2017-04-10 44629 
    Suspended sediment concentration, milligrams per liter  1960-10-01  1993-04-18 11851 
    Suspended sediment discharge, short tons per day  1960-10-01  1993-04-18 11522 
 Monthly Statistics 
    Discharge, cubic feet per second  1895-02  2017-04  
    Suspended sediment concentration, milligrams per liter  1960-10  1993-04  
    Suspended sediment discharge, short tons per day  1960-10  1993-04  
 Annual Statistics 
    Discharge, cubic feet per second  1895  2017  
    Suspended sediment concentration, milligrams per liter  1961  1993  
    Suspended sediment discharge, short tons per day  1961  1993  
 Peak streamflow 1889-06-02  2016-02-05  123 
 Field measurements 1895-03-25  2017-07-11  497 
 Field/Lab water-quality samples 1959-03-03  1992-04-23  554 
 Water-Year Summary 2006  2016  11 

Additional Data Sources
Begin Date
End Date
Count
 Instantaneous-Data Archive  **offsite** 1972-05-24  2007-09-30  365448 
OPERATION:
Record for this site is maintained by the USGS Maryland Water Science Center
Email questions about this site to Maryland Water Science Center Water-Data Inquiries