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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 1969-08-18 2019-10-09
Information Water-quality 1956-02-08 2024-03-04
Inorganics, Major, Metals Water-quality 1952-10-10 2023-11-06
Inorganics, Major, Non-metals Unit Values, Water-quality 1952-10-10 2024-11-20
Inorganics, Minor, Non-metals Water-quality 1969-09-17 2023-11-06
Inorganics, Minor, metals Water-quality 1952-10-10 2023-11-06
Microbiological Water-quality 1968-08-10 2024-02-12
Nutrient Unit Values, Water-quality 1952-10-10 2024-11-20
Organics, PCBs Water-quality 1971-03-11 1976-08-04
Organics, other Water-quality 1967-04-12 2023-12-14
Organics, pesticide Water-quality 1970-09-08 2023-12-14
Physical Daily Values, Unit Values, Water-quality 1928-08-01 2024-11-21
Population/Community Water-quality 1974-07-17 1981-09-03
Radiochemistry Water-quality 1969-10-07 2023-09-18
Sediment Water-quality 1973-10-12 2023-09-18
n/a Peak Measurements 1929-03-25 2023-07-12
n/a Site Visits 1979-03-08 2024-09-19
n/a USGS Annual Water Data Reports Site 2006-01-01 2023-01-01
Water Data for the Nation inventory

Monitoring location 01184000 is associated with a Stream in Hartford County, Connecticut. Current conditions of Discharge, Dissolved organic matter fluorescence (fDOM), Dissolved oxygen, and more are available. Water data back to 1928 are available online.

The elevation of this gage is 27.75 ft above NAVD of 1988. To obtain stream water surface elevation values in NAVD88, add 27.75 feet to gage height values.
Metadata Element Location Metadata Metadata Code
Agency
U.S. Geological Survey USGS
Site identification number
01184000 n/a
Site name
CONNECTICUT RIVER AT THOMPSONVILLE, CT n/a
Site type
Stream
ST
DMS latitude 415914 n/a
DMS longitude 0723621 n/a
Decimal latitude 41.9873186 n/a
Decimal longitude -72.6053669 n/a
Latitude-longitude method
Interpolated from MAP. M
Latitude-longitude accuracy
Accurate to + or - 1 sec. S
Latitude-longitude datum
North American Datum of 1927 NAD27
Decimal Latitude-longitude datum North American Datum of 1983 NAD83
District
Connecticut 09
State
Connecticut 09
County
Hartford County 003
Country US n/a
Land net location description n/a
Name of location map HOLYOKE, MA n/a
Scale of location map 24000 n/a
Altitude of Gage/land surface 27.75 feet n/a
Method altitude determined Level or other surveyed method. L
Altitude accuracy 0.2 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 NNYNYNYNNNNNNYNNYNNNNNNNNNNNNN n/a
Date of first construction
n/a
Date site established or inventoried 20040204 n/a
Drainage area
9660 square miles n/a
Contributing drainage area 9660 square miles 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 2404-00100 n/a