Warning: Javascript must be enabled to use all the features on this page!


Page Loading - Please Wait...

Click to hideNews Bulletins

USGS 01656903 FLATLICK BRANCH ABOVE FROG BRANCH AT CHANTILLY, VA

  Stream Site

DESCRIPTION:
Latitude 38°52'56.2",   Longitude 77°25'55.9"   NAD27
Fairfax County, Virginia, Hydrologic Unit 02070010
Drainage area: 4.20 square miles
Datum of gage: 256.8 feet above   NAVD88.
AVAILABLE DATA:
Data Type Begin Date End Date Count
 Current / Historical Observations     (availability statement)    2007-10-01  2025-09-25  
 Daily Data
    Temperature, water, degrees Celsius  2007-09-30  2025-09-25  25509 
    Discharge, cubic feet per second  2007-09-21  2025-09-24  6578 
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  2007-09-30  2025-09-25  25169 
    Dissolved oxygen, water, unfiltered, milligrams per liter  2012-03-29  2025-09-25  18921 
    pH, water, unfiltered, field, standard units  2007-09-30  2025-09-25  19126 
    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  2017-08-28  12844 
    Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)  2022-09-26  2025-09-25  3230 
 Daily Statistics 
    Temperature, water, degrees Celsius  2007-09-30  2025-06-03 6292 
    Discharge, cubic feet per second  2007-09-21  2025-06-09 6472 
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  2007-09-30  2025-06-03 6207 
    Dissolved oxygen, water, unfiltered, milligrams per liter  2012-03-29  2025-06-03 4645 
    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  2017-08-28 3211 
 Monthly Statistics 
    Temperature, water, degrees Celsius  2007-09  2025-06  
    Discharge, cubic feet per second  2007-09  2025-06  
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  2007-09  2025-06  
    Dissolved oxygen, water, unfiltered, milligrams per liter  2012-03  2025-06  
    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  2025  
    Discharge, cubic feet per second  2007  2025  
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  2007  2025  
    Dissolved oxygen, water, unfiltered, milligrams per liter  2012  2025  
    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 2008-05-11  2023-12-18  17 
 Field measurements 2007-09-27  2025-08-12  172 
 Field/Lab water-quality samples (Legacy QW is frozen as of March 2024, newer data may be found on MLP) 2008-04-11  2024-02-28  617 
 Water-Year Summary 2008  2024  17 
 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