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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	2025-12-12
Daily Data
Temperature, water, degrees Celsius	2007-09-30	2025-12-12	25743
Discharge, cubic feet per second	2007-09-21	2025-12-11	6655
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	2007-09-30	2025-12-11	25401
Dissolved oxygen, water, unfiltered, milligrams per liter	2012-03-29	2025-12-12	19155
pH, water, unfiltered, field, standard units	2007-09-30	2025-12-12	19360
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)	2022-12-13	2025-12-11	3203
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	2025-11-19	173
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	2025	18
Revisions	Loading...

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