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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
Physical Daily Values, Groundwater Levels, Unit Values 2001-10-05 2024-11-08
n/a USGS Active Groundwater Level Network Site 2001-01-01 2021-01-01
n/a USGS Annual Water Data Reports Site 2006-01-01 2023-01-01
Water Data for the Nation inventory

Monitoring location 410628073413301 is associated with a Well in Fairfield County, Connecticut. Current conditions of Depth to water level are available. Water data back to 2001 are available online.

Metadata Element Location Metadata Metadata Code
Agency
U.S. Geological Survey USGS
Site identification number
410628073413301 n/a
Site name
CT- GW 21 GREENWICH, CT n/a
Site type
Well
GW
DMS latitude 410628.4 n/a
DMS longitude 0734132.6 n/a
Decimal latitude 41.10788889 n/a
Decimal longitude -73.69238889 n/a
Latitude-longitude method
Mapping grade GPS unit (handheld accuracy range 12 to 40 ft) G
Latitude-longitude accuracy
Accurate to + or - .5 sec (PLGR/PPS GPS). 5
Latitude-longitude datum
North American Datum of 1983 NAD83
Decimal Latitude-longitude datum North American Datum of 1983 NAD83
District
Connecticut 09
State
Connecticut 09
County
Fairfield County 001
Country US n/a
Land net location description n/a
Name of location map Glenville n/a
Scale of location map 24000 n/a
Altitude of Gage/land surface 465.11 feet n/a
Method altitude determined GNSS2 - Level 2 Quality Survey Grade Global Navigation Satellite System X
Altitude accuracy .16 feet n/a
Altitude datum
North American Vertical Datum of 1988 NAVD88
Subbasin hydrologic unit
Saugatuck 01100006
Drainage basin
n/a
Topographic setting
Hilltop
H
Flags for instruments at site NNNNYNNNNNNNNNNNNNNNNNNNNNNNNN n/a
Date of first construction
20010924 n/a
Date site established or inventoried 20010924 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 YY Y Y n/a
National aquifer New York and New England carbonate-rock aquifers N400NYNECB
Local aquifer Carbonate Crystalline Bedrock 300CBCL
Local aquifer type
Confined single aquifer C
Well depth 350 feet n/a
Hole depth
350 feet n/a
Source of depth data S n/a
Project number 440908600 n/a

Operated in cooperation with:

logo for Connecticut Department of Energy and Environmental Protection
Connecticut Department of Energy and Environmental Protection
logo for USGS - Cooperative Matching Funds
USGS - Cooperative Matching Funds