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DESCRIPTION:

Latitude 38°46'30.53",   Longitude 77°12'12.82"   NAD27

Fairfax County, Virginia, Hydrologic Unit 02070010

Drainage area: 33.4 square miles

Datum of gage: 139.84 feet above   NAVD88.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Current / Historical Observations     (availability statement)	2024-08-29	2025-12-24
Daily Data
Temperature, water, degrees Celsius	2024-08-29	2025-12-24	1447
Discharge, cubic feet per second	2024-08-30	2025-12-23	479
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	2024-08-29	2025-12-24	1449
Dissolved oxygen, water, unfiltered, milligrams per liter	2024-08-29	2025-12-24	1399
pH, water, unfiltered, field, standard units	2024-08-29	2025-12-24	1447
Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)	2024-08-29	2025-12-24	1324
Daily Statistics
Discharge, cubic feet per second	2024-08-30	2025-09-03	370
Monthly Statistics
Discharge, cubic feet per second	2024-08	2025-09
Annual Statistics
Discharge, cubic feet per second	2024	2025
Field measurements	1947-03-05	2025-11-20	22
Water-Year Summary	2024	2024	1
Revisions	Loading...

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