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Important for you to know:

  • New to WDFN: see current water conditions throughout the state using the new State Pages. Filter by continuous data type and age of data, view latest values, and link to graphing options to explore the data further. To learn more, read our announcement on the Water Data for the Nation blog.
Important Legacy real-time page

USGS Parameter Group Data Types Start Date End Date
Information Unit Values, Water-quality 2021-05-18 2024-11-21
Inorganics, Major, Metals Water-quality 2021-05-18 2023-11-14
Inorganics, Major, Non-metals Daily Values, Unit Values, Water-quality 2021-03-11 2024-11-21
Inorganics, Minor, metals Water-quality 2021-05-18 2023-11-14
Nutrient Daily Values, Unit Values, Water-quality 2021-05-18 2024-11-21
Organics, other Water-quality 2022-10-12 2023-12-11
Physical Daily Values, Unit Values, Water-quality 2021-03-11 2024-11-21
Sediment Water-quality 2021-05-18 2024-01-18
n/a Site Visits 2021-03-23 2024-10-16
n/a USGS Annual Water Data Reports Site 2021-01-01 2023-01-01
Water Data for the Nation inventory

Monitoring location 0164578734 is associated with a Stream in Fairfax County, Virginia. Current conditions of Count of samples collected by autosampler, Discharge, Dissolved oxygen, and more are available. Water data back to 2021 are available online.

Metadata Element Location Metadata Metadata Code
Agency
U.S. Geological Survey USGS
Site identification number
0164578734 n/a
Site name
SNAKEDEN BRANCH ABOVE LAKE AUDUBON AT RESTON, VA n/a
Site type
Stream
ST
DMS latitude 385546.78 n/a
DMS longitude 0772028.10 n/a
Decimal latitude 38.9296611 n/a
Decimal longitude -77.34113889 n/a
Latitude-longitude method
Mapping grade GPS unit (handheld accuracy range 12 to 40 ft) G
Latitude-longitude accuracy
Accurate to + or - .1 sec (Differentially-Corrected GPS). 1
Latitude-longitude datum
North American Datum of 1983 NAD83
Decimal Latitude-longitude datum North American Datum of 1983 NAD83
District
Virginia 51
State
Virginia 51
County
Fairfax County 059
Country US n/a
Land net location description n/a
Name of location map VIENNA, VA n/a
Scale of location map 24000 n/a
Altitude of Gage/land surface 304.7 feet n/a
Method altitude determined GNSS2 - Level 2 Quality Survey Grade Global Navigation Satellite System X
Altitude accuracy .11 feet n/a
Altitude datum
North American Vertical Datum of 1988 NAVD88
Subbasin hydrologic unit
Middle Potomac-Catoctin 02070008
Drainage basin
n/a
Topographic setting
n/a
Flags for instruments at site NNNNYNNNNNNNNNNNNNNNNNNNNNNNNN n/a
Date of first construction
n/a
Date site established or inventoried n/a
Drainage area
0.82 square miles n/a
Contributing drainage area n/a
Time Zone abbreviation EST n/a
Site honors Daylight Saving Time
Y n/a
Data reliability
n/a
Data-other GW files n/a
National aquifer n/a
Local aquifer n/a
Local aquifer type
n/a
Well depth n/a
Hole depth
n/a
Source of depth data n/a
Project number n/a

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