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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  2023-02-05  
 Daily Data
    Temperature, water, degrees Celsius  2021-05-08  2023-02-04  1908 
    Discharge, cubic feet per second  1895-02-01  2023-02-04  46755 
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  2021-05-08  2023-02-04  1908 
    Dissolved oxygen, water, unfiltered, milligrams per liter  2021-05-08  2023-02-04  1908 
    pH, water, unfiltered, field, standard units  2021-05-08  2023-02-04  1902 
    Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)  2021-05-08  2023-02-04  1773 
    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 
    Temperature, water, degrees Celsius  2021-05-08  2023-01-18 619 
    Discharge, cubic feet per second  1895-02-01  2022-12-20 46709 
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  2021-05-08  2023-01-18 619 
    Dissolved oxygen, water, unfiltered, milligrams per liter  2021-05-08  2023-01-18 619 
    Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)  2021-05-08  2023-01-18 574 
    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 
    Temperature, water, degrees Celsius  2021-05  2023-01  
    Discharge, cubic feet per second  1895-02  2022-12  
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  2021-05  2023-01  
    Dissolved oxygen, water, unfiltered, milligrams per liter  2021-05  2023-01  
    Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)  2021-05  2023-01  
    Suspended sediment concentration, milligrams per liter  1960-10  1993-04  
    Suspended sediment discharge, short tons per day  1960-10  1993-04  
 Annual Statistics 
    Temperature, water, degrees Celsius  2021  2023  
    Discharge, cubic feet per second  1895  2023  
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  2021  2023  
    Dissolved oxygen, water, unfiltered, milligrams per liter  2021  2023  
    Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)  2021  2023  
    Suspended sediment concentration, milligrams per liter  1961  1993  
    Suspended sediment discharge, short tons per day  1961  1993  
 Peak streamflow 1889-06-02  2022-05-08  129 
 Field measurements 1895-03-25  2022-12-21  535 
 Field/Lab water-quality samples 1959-03-03  1992-04-23  554 
 Water-Year Summary 2006  2022  17 
 Revisions  Loading...
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