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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 Inventory Page

USGS Parameter Group Data Types Start Date End Date
Information Water-quality 1994-06-22 2014-07-23
Inorganics, Major, Metals Water-quality 1994-06-22 2014-07-23
Inorganics, Major, Non-metals Water-quality 1994-06-22 2014-07-23
Inorganics, Minor, Non-metals Water-quality 2014-07-23 2014-07-23
Inorganics, Minor, metals Water-quality 1994-06-22 2014-07-23
Microbiological Water-quality 2014-07-23 2014-07-23
Nutrient Water-quality 1994-06-22 2014-07-23
Organics, other Water-quality 1994-06-22 2014-07-23
Organics, pesticide Water-quality 1994-06-22 2014-07-23
Physical Groundwater Levels, Water-quality 1994-06-22 2024-08-12
Radiochemistry Water-quality 1994-06-22 2014-07-23
Stable Isotopes Water-quality 2014-07-23 2014-07-23
Water Data for the Nation inventory

Monitoring location 385851077390201 is associated with a Well in Loudoun County, Virginia. Water data back to 1994 are available online.

Metadata Element Location Metadata Metadata Code
Agency
U.S. Geological Survey USGS
Site identification number
385851077390201 n/a
Site name
49V 90 n/a
Site type
Well
GW
DMS latitude 385851.69 n/a
DMS longitude 0773905.13 n/a
Decimal latitude 38.981025 n/a
Decimal longitude -77.651425 n/a
Latitude-longitude method
Mapping grade GPS unit (handheld accuracy range 12 to 40 ft) G
Latitude-longitude accuracy
Accurate to + or - .01 sec (Differentially-Corrected GPS). H
Latitude-longitude datum
North American Datum of 1983 NAD83
Decimal Latitude-longitude datum North American Datum of 1983 NAD83
District
Maryland 24
State
Virginia 51
County
Loudoun County 107
Country US n/a
Land net location description n/a
Name of location map MIDDLEBURG n/a
Scale of location map 24000 n/a
Altitude of Gage/land surface 453 feet n/a
Method altitude determined G n/a
Altitude accuracy 10 feet n/a
Altitude datum
National Geodetic Vertical Datum of 1929 NGVD29
Subbasin hydrologic unit
Middle Potomac-Catoctin 02070008
Drainage basin
n/a
Topographic setting
Hilltop
H
Flags for instruments at site NNNNNNNNNNNNNNNNNNNNNNNNNNNNNN n/a
Date of first construction
n/a
Date site established or inventoried 19940505 n/a
Drainage area
n/a
Contributing drainage area n/a
Time Zone abbreviation EST n/a
Site honors Daylight Saving Time
Y n/a
Data reliability
Data have been checked by the reporting agency. C
Data-other GW files YYNYNYNN n/a
National aquifer Piedmont and Blue Ridge crystalline-rock aquifers N400PDMBRX
Local aquifer Catoctin Metabasalt 400CTCN
Local aquifer type
n/a
Well depth 162 feet n/a
Hole depth
162 feet n/a
Source of depth data S n/a
Project number 442410200 n/a