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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 2019-06-26 2023-09-27
Information Water-quality 2011-05-13 2023-09-27
Inorganics, Major, Non-metals Unit Values, Water-quality 2010-02-27 2024-11-21
Nutrient Water-quality 2019-06-26 2023-09-13
Organics, other Water-quality 2019-06-26 2023-09-27
Physical Daily Values, Unit Values, Water-quality 2010-02-19 2024-11-21
Sediment Water-quality 2023-07-14 2023-07-14
n/a Peak Measurements 2010-03-30 2010-03-30
n/a USGS Annual Water Data Reports Site 2010-01-01 2022-01-01
Water Data for the Nation inventory

Monitoring location 01194750 is associated with an Estuary in Middlesex County, Connecticut. Current conditions of Chlorophyll relative fluorescence (fChl), Dissolved organic matter fluorescence (fDOM), Dissolved oxygen, and more are available. Water data back to 2010 are available online.

The elevation of this gage is -0.96 ft above NAVD of 1988. To obtain stream water surface elevation values in NAVD88, add -0.96 feet to gage height values.
Metadata Element Location Metadata Metadata Code
Agency
U.S. Geological Survey USGS
Site identification number
01194750 n/a
Site name
CONNECTICUT RIVER AT ESSEX, CT n/a
Site type
Estuary
ES
DMS latitude 412105.34 n/a
DMS longitude 0722303.72 n/a
Decimal latitude 41.3514833 n/a
Decimal longitude -72.3843667 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
Middlesex County 007
Country US n/a
Land net location description n/a
Name of location map ESSEX, CT n/a
Scale of location map 24000 n/a
Altitude of Gage/land surface -0.96 feet n/a
Method altitude determined Level or other surveyed method. L
Altitude accuracy .02 feet n/a
Altitude datum
North American Vertical Datum of 1988 NAVD88
Subbasin hydrologic unit
Lower Connecticut 01080205
Drainage basin
n/a
Topographic setting
Stream channel
C
Flags for instruments at site YNNYYNNYNNNNNNNNYNNNNNNNNNNNNN n/a
Date of first construction
n/a
Date site established or inventoried 20091214 n/a
Drainage area
11200 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
Data have been checked by the reporting agency. C
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