USGS 410606073245700 NORWALK R AT MARITIME AQUARIUM NR S NORWALK, CT

PROVISIONAL DATA SUBJECT TO REVISION

This station managed by the East Hartford CT Field Office.

Available Parameters Available Period
  
2021-06-15  2025-11-08
2021-06-15  2025-11-08
2021-06-15  2025-11-08
2021-06-15  2025-11-08
2021-06-15  2025-11-08
2021-06-15  2025-11-08
2021-06-15  2025-11-08
2022-11-07  2025-11-08
2023-04-11  2025-11-08
2021-06-15  2025-11-08
2021-06-15  2025-11-08
2021-06-15  2025-11-08
2021-06-15  2025-11-08
2021-06-15  2025-11-08
2021-06-15  2025-11-08
2021-06-15  2025-11-08
2021-07-20  2024-02-21
2023-01-30  2023-06-12







 (31)
 
  -- or --

 

 
Summary of all available data for this site
Instantaneous-data availability statement

Temperature, water, degrees Celsius, BOTTOM
Most recent instantaneous value: 11.8 11-08-2025   08:06 EST
Graph of Temperature, water, degrees Celsius

Add up to 2 more sites and replot for "Temperature, water, degrees Celsius, BOTTOM"

?
 
Note



Create presentation-quality / stand-alone graph.   Subscribe to
?
WaterAlert      

See this graph on the Monitoring Location Pages

Share this graph |


Temperature, water, degrees Celsius, TOP
Most recent instantaneous value: 11.9 11-08-2025   08:06 EST
Graph of Temperature, water, degrees Celsius

Add up to 2 more sites and replot for "Temperature, water, degrees Celsius, TOP"

?
 
Note



Create presentation-quality / stand-alone graph.   Subscribe to
?
WaterAlert      

See this graph on the Monitoring Location Pages

Share this graph |


Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius, BOTTOM
Most recent instantaneous value: 41700 11-08-2025   08:06 EST
Graph of Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius

Add up to 2 more sites and replot for "Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius, BOTTOM"

?
 
Note



Create presentation-quality / stand-alone graph.   Subscribe to
?
WaterAlert      

See this graph on the Monitoring Location Pages

Share this graph |


Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius, TOP
Most recent instantaneous value: 41600 11-08-2025   08:06 EST
Graph of Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius

Add up to 2 more sites and replot for "Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius, TOP"

?
 
Note



Create presentation-quality / stand-alone graph.   Subscribe to
?
WaterAlert      

See this graph on the Monitoring Location Pages

Share this graph |


Dissolved oxygen, water, unfiltered, milligrams per liter, BOTTOM
Most recent instantaneous value: 8.0 11-08-2025   08:06 EST
Graph of Dissolved oxygen, water, unfiltered, milligrams per liter

Add up to 2 more sites and replot for "Dissolved oxygen, water, unfiltered, milligrams per liter, BOTTOM"

?
 
Note



Create presentation-quality / stand-alone graph.   Subscribe to
?
WaterAlert      

See this graph on the Monitoring Location Pages

Share this graph |


Dissolved oxygen, water, unfiltered, milligrams per liter, TOP
Most recent instantaneous value: 7.9 11-08-2025   08:06 EST
Graph of Dissolved oxygen, water, unfiltered, milligrams per liter

Add up to 2 more sites and replot for "Dissolved oxygen, water, unfiltered, milligrams per liter, TOP"

?
 
Note



Create presentation-quality / stand-alone graph.   Subscribe to
?
WaterAlert      

See this graph on the Monitoring Location Pages

Share this graph |


Dissolved oxygen, water, unfiltered, percent of saturation, BOTTOM
Most recent instantaneous value: 87 11-08-2025   08:00 EST
Graph of Dissolved oxygen, water, unfiltered, percent of saturation

Add up to 2 more sites and replot for "Dissolved oxygen, water, unfiltered, percent of saturation, BOTTOM"

?
 
Note



Create presentation-quality / stand-alone graph.   Subscribe to
?
WaterAlert      

See this graph on the Monitoring Location Pages

Share this graph |


Dissolved oxygen, water, unfiltered, percent of saturation, TOP
Most recent instantaneous value: 88 11-08-2025   08:00 EST
Graph of Dissolved oxygen, water, unfiltered, percent of saturation

Add up to 2 more sites and replot for "Dissolved oxygen, water, unfiltered, percent of saturation, TOP"

?
 
Note



Create presentation-quality / stand-alone graph.   Subscribe to
?
WaterAlert      

See this graph on the Monitoring Location Pages

Share this graph |


pH, water, unfiltered, field, standard units, BOTTOM
Most recent instantaneous value: 8.0 11-08-2025   08:06 EST
Graph of pH, water, unfiltered, field, standard units

Add up to 2 more sites and replot for "pH, water, unfiltered, field, standard units, BOTTOM"

?
 
Note



Create presentation-quality / stand-alone graph.   Subscribe to
?
WaterAlert      

See this graph on the Monitoring Location Pages

Share this graph |


Chlorophyll relative fluorescence (fChl), water, in situ, relative fluorescence units (RFU), BOTTOM
Most recent instantaneous value: 0.74 11-08-2025   08:06 EST
Graph of Chlorophyll relative fluorescence (fChl), water, in situ, relative fluorescence units (RFU)

Add up to 2 more sites and replot for "Chlorophyll relative fluorescence (fChl), water, in situ, relative fluorescence units (RFU), BOTTOM"

?
 
Note



Create presentation-quality / stand-alone graph.   Subscribe to
?
WaterAlert      

See this graph on the Monitoring Location Pages

Share this graph |


Chlorophyll relative fluorescence (fChl), water, in situ, relative fluorescence units (RFU), TOP
Most recent instantaneous value: 0.68 11-08-2025   08:06 EST
Graph of Chlorophyll relative fluorescence (fChl), water, in situ, relative fluorescence units (RFU)

Add up to 2 more sites and replot for "Chlorophyll relative fluorescence (fChl), water, in situ, relative fluorescence units (RFU), TOP"

?
 
Note



Create presentation-quality / stand-alone graph.   Subscribe to
?
WaterAlert      

See this graph on the Monitoring Location Pages

Share this graph |


Estuary or ocean water surface elevation above NAVD 1988, feet
Most recent instantaneous value: -2.47 11-08-2025   08:06 EST
Graph of Estuary or ocean water surface elevation above NAVD 1988, feet

Add up to 2 more sites and replot for "Estuary or ocean water surface elevation above NAVD 1988, feet"

?
 
Note



Create presentation-quality / stand-alone graph.   Subscribe to
?
WaterAlert      

See this graph on the Monitoring Location Pages

Share this graph |


Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU), BOTTOM
Most recent instantaneous value: 4.0 11-08-2025   08:06 EST
Graph of Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)

Add up to 2 more sites and replot for "Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU), BOTTOM"

?
 
Note



Create presentation-quality / stand-alone graph.   Subscribe to
?
WaterAlert      

See this graph on the Monitoring Location Pages

Share this graph |


Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU), TOP
Most recent instantaneous value: 4.6 11-08-2025   08:06 EST
Graph of Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)

Add up to 2 more sites and replot for "Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU), TOP"

?
 
Note



Create presentation-quality / stand-alone graph.   Subscribe to
?
WaterAlert      

See this graph on the Monitoring Location Pages

Share this graph |


Salinity, water, unfiltered, practical salinity units at 25 degrees Celsius, BOTTOM
Most recent instantaneous value: 27 11-08-2025   08:06 EST
Graph of Salinity, water, unfiltered, practical salinity units at 25 degrees Celsius

Add up to 2 more sites and replot for "Salinity, water, unfiltered, practical salinity units at 25 degrees Celsius, BOTTOM"

?
 
Note



Create presentation-quality / stand-alone graph.   Subscribe to
?
WaterAlert      

See this graph on the Monitoring Location Pages

Share this graph |


Salinity, water, unfiltered, practical salinity units at 25 degrees Celsius, TOP
Most recent instantaneous value: 27 11-08-2025   08:06 EST
Graph of Salinity, water, unfiltered, practical salinity units at 25 degrees Celsius

Add up to 2 more sites and replot for "Salinity, water, unfiltered, practical salinity units at 25 degrees Celsius, TOP"

?
 
Note



Create presentation-quality / stand-alone graph.   Subscribe to
?
WaterAlert      

See this graph on the Monitoring Location Pages

Share this graph |


Photosynthetically active radiation (average flux density on a horizontal surface during measurement interval), micromoles of photons per square meter per second
 
-- Data temporarily unavailable for the time period specified --

Photosynthetically active radiation (PAR), water, in situ, micromoles of photons per square meter per second
 
-- Data temporarily unavailable for the time period specified --