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USGS 01645762 S F LITTLE DIFFICULT RUN ABOVE MOUTH NR VIENNA, VA

  Stream Site

DESCRIPTION:
Latitude 38°54'31.6",   Longitude 77°20'18.8"   NAD27
Fairfax County, Virginia, Hydrologic Unit 02070008
Drainage area: 2.71 square miles
Datum of gage: 275.16 feet above   NAVD88.
AVAILABLE DATA:
Data Type Begin Date End Date Count
 Current / Historical Observations     (availability statement)    2007-10-01  2021-01-16  
 Daily Data
    Temperature, water, degrees Celsius  2007-09-30  2021-01-15  18760 
    Discharge, cubic feet per second  2007-09-20  2021-01-15  4865 
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  2007-09-30  2021-01-15  18312 
    Dissolved oxygen, water, unfiltered, milligrams per liter  2011-06-08  2021-01-15  13288 
    pH, water, unfiltered, field, standard units  2007-09-30  2021-01-15  13893 
    Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)  2007-09-30  2017-08-16  3040 
 Daily Statistics 
    Temperature, water, degrees Celsius  2007-09-30  2020-07-29 4523 
    Discharge, cubic feet per second  2007-09-20  2020-10-27 4787 
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  2007-09-30  2020-07-29 4420 
    Dissolved oxygen, water, unfiltered, milligrams per liter  2011-06-08  2020-07-29 3179 
    Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)  2007-09-30  2017-08-16 3040 
 Monthly Statistics 
    Temperature, water, degrees Celsius  2007-09  2020-07  
    Discharge, cubic feet per second  2007-09  2020-10  
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  2007-09  2020-07  
    Dissolved oxygen, water, unfiltered, milligrams per liter  2011-06  2020-07  
    Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)  2007-09  2017-08  
 Annual Statistics 
    Temperature, water, degrees Celsius  2007  2020  
    Discharge, cubic feet per second  2007  2021  
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  2007  2020  
    Dissolved oxygen, water, unfiltered, milligrams per liter  2011  2020  
    Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)  2007  2017  
 Peak streamflow 2008-09-06  2020-08-12  13 
 Field measurements 2007-09-27  2020-12-29  125 
 Field/Lab water-quality samples 2008-04-21  2020-11-17  603 
 Water-Year Summary 2008  2020  13 
 Revisions  Loading...
OPERATION:
Record for this site is maintained by the USGS Virginia Water Science Center
Email questions about this site to Virginia Water Science Center Water-Data Inquiries