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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
Biological Water-quality 2002-08-27 2016-09-13
Information Water-quality 1976-04-12 2016-09-13
Inorganics, Major, Metals Water-quality 1962-11-27 2016-08-03
Inorganics, Major, Non-metals Water-quality 1962-11-27 2016-09-13
Inorganics, Minor, Non-metals Water-quality 2015-08-17 2016-08-03
Inorganics, Minor, metals Water-quality 1962-11-27 2016-08-03
Microbiological Water-quality 1976-04-12 1978-04-19
Nutrient Water-quality 1962-11-27 2016-09-13
Organics, PCBs Water-quality 2009-08-25 2009-08-25
Organics, other Water-quality 1962-11-27 2016-09-13
Organics, pesticide Water-quality 2009-08-25 2016-08-03
Physical Daily Values, Unit Values, Water-quality 1962-09-01 2024-11-21
Radiochemistry Water-quality 2015-08-17 2016-08-03
Sediment Water-quality 1976-04-12 2016-09-13
Stable Isotopes Water-quality 2016-06-14 2016-09-13
n/a Peak Measurements 1955-10-16 2021-10-26
n/a Site Visits 1980-04-10 2024-10-17
n/a USGS Annual Water Data Reports Site 2006-01-01 2022-01-01
Water Data for the Nation inventory

Monitoring location 01209700 is associated with a Stream in Fairfield County, Connecticut. Current conditions of Discharge and Gage height are available. Water data back to 1955 are available online.

The elevation of this gage is 114.59 ft above NAVD of 1988. To obtain stream water surface elevation values in NAVD88, add 114.59 feet to gage height values.
Metadata Element Location Metadata Metadata Code
Agency
U.S. Geological Survey USGS
Site identification number
01209700 n/a
Site name
NORWALK RIVER AT SOUTH WILTON, CT n/a
Site type
Stream
ST
DMS latitude 410949.56 n/a
DMS longitude 0732510.36 n/a
Decimal latitude 41.16376667 n/a
Decimal longitude -73.4195444 n/a
Latitude-longitude method
Interpolated from Digital MAP. N
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
Connecticut 09
State
Connecticut 09
County
Fairfield County 001
Country US n/a
Land net location description n/a
Name of location map NORWALK NORTH, CT n/a
Scale of location map 24000 n/a
Altitude of Gage/land surface 114.59 feet n/a
Method altitude determined Level or other surveyed method. L
Altitude accuracy .01 feet n/a
Altitude datum
North American Vertical Datum of 1988 NAVD88
Subbasin hydrologic unit
Saugatuck 01100006
Drainage basin
n/a
Topographic setting
Stream channel
C
Flags for instruments at site NNNNYNNNNNYNNNNNNNNNNNNNNNNNNN n/a
Date of first construction
n/a
Date site established or inventoried 19620901 n/a
Drainage area
30.0 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 NNNNNNNN 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 442510000 n/a