| USGS Parameter Group | Data Types | Start Date | End Date |
|---|---|---|---|
| Biological | Water-quality | 2014-06-09 | 2014-06-09 |
| Information | Unit Values, Water-quality | 2008-04-03 | 2024-12-21 |
| Inorganics, Major, Metals | Water-quality | 2011-09-20 | 2023-08-08 |
| Inorganics, Major, Non-metals | Daily Values, Unit Values, Water-quality | 2008-04-24 | 2024-12-21 |
| Inorganics, Minor, Non-metals | Water-quality | 2014-06-09 | 2014-06-09 |
| Inorganics, Minor, metals | Water-quality | 2011-09-20 | 2023-08-08 |
| Microbiological | Water-quality | 2016-07-12 | 2023-07-11 |
| Nutrient | Water-quality | 2008-04-24 | 2023-08-08 |
| Organics, other | Water-quality | 2014-04-03 | 2014-06-16 |
| Organics, pesticide | Water-quality | 2014-04-03 | 2014-06-16 |
| Physical | Daily Values, Unit Values, Water-quality | 2007-09-21 | 2024-12-21 |
| Radiochemistry | Water-quality | 2014-06-09 | 2014-06-09 |
| Sediment | Water-quality | 2008-04-03 | 2023-10-10 |
| Stable Isotopes | Water-quality | 2011-09-20 | 2016-03-07 |
| n/a | Peak Measurements | 2008-09-06 | 2022-12-22 |
| n/a | Site Visits | 2007-09-27 | 2024-12-05 |
| n/a | USGS Annual Water Data Reports Site | 2008-01-01 | 2024-01-01 |
Monitoring location 01645704 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 2007 are available online.
| Metadata Element | Location Metadata | Metadata Code |
|---|---|---|
|
Agency
|
U.S. Geological Survey | USGS |
|
Site identification number
|
01645704 | n/a |
|
Site name
|
DIFFICULT RUN ABOVE FOX LAKE NEAR FAIRFAX, VA | n/a |
|
Site type
|
Stream
|
ST |
| DMS latitude | 385304.5 | n/a |
| DMS longitude | 0771957.8 | n/a |
| Decimal latitude | 38.88469518 | n/a |
| Decimal longitude | -77.3324293 | n/a |
|
Latitude-longitude method
|
Interpolated from MAP. | M |
|
Latitude-longitude accuracy
|
Accurate to + or - .1 sec (Differentially-Corrected GPS). | 1 |
|
Latitude-longitude datum
|
North American Datum of 1927 | NAD27 |
| 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 | n/a |
| Scale of location map | 24000 | n/a |
| Altitude of Gage/land surface | 288.1 feet | n/a |
| Method altitude determined | GNSS3 - Level 3 Quality Survey Grade Global Navigation Satellite System | Y |
| Altitude accuracy | .1 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
|
5.49 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 |
