USGS 05543010 ILLINOIS RIVER AT SENECA, IL

PROVISIONAL DATA SUBJECT TO REVISION

Click to hidestation-specific text
This site is operated in cooperation with the

Cooperator logo Exelon Corporation





Real-time tagged fish detections near this site
This station managed by the Urbana Field Office.

Available Parameters Available Period
  
2025-04-15  2025-07-09
2012-10-16  2025-04-15
2013-07-18  2025-07-09
2025-04-15  2025-07-09
2013-06-27  2025-04-15
2025-04-15  2025-07-09
2013-06-27  2025-04-15
2025-04-15  2025-07-09
2013-06-27  2025-04-15
2013-06-27  2025-04-15
2025-04-15  2025-07-09
2013-06-27  2025-04-15
2025-04-15  2025-07-09
2025-04-15  2025-07-09
2013-06-27  2025-04-15
2025-04-15  2025-07-09
2013-07-18  2025-04-15







 (7)
 

  -- or --

 


 

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

Temperature, water, degrees Celsius, [BTM]
 
-- Data temporarily unavailable for the time period specified --


Temperature, water, degrees Celsius, [MID]

Most recent instantaneous value: 29.8 07-09-2025   01:45 CST
Graph of  Temperature, water, degrees Celsius, [MID]

Add up to 2 more sites and replot for "Temperature, water, degrees Celsius, [MID]"

?
 


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

See this graph on the Monitoring Location Pages




Gage height, feet

Most recent instantaneous value: 21.00 07-09-2025   01:45 CST
Graph of  Gage height, feet

Add up to 2 more sites and replot for "Gage height, feet"

?
 


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

See this graph on the Monitoring Location Pages



Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius, [BTM]
 
-- Data temporarily unavailable for the time period specified --


Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius, [MID]

Most recent instantaneous value: 787 07-09-2025   01:45 CST
Graph of  Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius, [MID]

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

?
 


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

See this graph on the Monitoring Location Pages



Dissolved oxygen, water, unfiltered, milligrams per liter, [BTM]
 
-- Data temporarily unavailable for the time period specified --


Dissolved oxygen, water, unfiltered, milligrams per liter, [MID]

Most recent instantaneous value: 8.6 07-09-2025   01:45 CST
Graph of  Dissolved oxygen, water, unfiltered, milligrams per liter, [MID]

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

?
 


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

See this graph on the Monitoring Location Pages



pH, water, unfiltered, field, standard units, [BTM]
 
-- Data temporarily unavailable for the time period specified --


pH, water, unfiltered, field, standard units, [MID]

Most recent instantaneous value: 8.6 07-09-2025   01:45 CST
Graph of  pH, water, unfiltered, field, standard units, [MID]

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

?
 


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

See this graph on the Monitoring Location Pages



Chlorophyll fluorescence (fChl), water, in situ, concentration estimated from reference material, micrograms per liter as chlorophyll, [BTM]
 
-- Data temporarily unavailable for the time period specified --


Chlorophyll fluorescence (fChl), water, in situ, concentration estimated from reference material, micrograms per liter as chlorophyll, [MID]

Most recent instantaneous value: 21.31 07-09-2025   01:45 CST
Graph of  Chlorophyll fluorescence (fChl), water, in situ, concentration estimated from reference material, micrograms per liter as chlorophyll, [MID]

Add up to 2 more sites and replot for "Chlorophyll fluorescence (fChl), water, in situ, concentration estimated from reference material, micrograms per liter as chlorophyll, [MID]"

?
 


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

See this graph on the Monitoring Location Pages



Phycocyanin fluorescence (fPC), water, in situ, concentration estimated from reference material, micrograms per liter as phycocyanin, [BTM]
 
-- Data temporarily unavailable for the time period specified --


Phycocyanin fluorescence (fPC), water, in situ, concentration estimated from reference material, micrograms per liter as phycocyanin, [MID]

Most recent instantaneous value: 0.86 07-09-2025   01:45 CST
Graph of  Phycocyanin fluorescence (fPC), water, in situ, concentration estimated from reference material, micrograms per liter as phycocyanin, [MID]

Add up to 2 more sites and replot for "Phycocyanin fluorescence (fPC), water, in situ, concentration estimated from reference material, micrograms per liter as phycocyanin, [MID]"

?
 


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

See this graph on the Monitoring Location Pages



Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU), [BTM]
 
-- Data temporarily unavailable for the time period specified --


Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU), [MID]

Most recent instantaneous value: 5.0 07-09-2025   01:45 CST
Graph of  Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU), [MID]

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), [MID]"

?
 


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

See this graph on the Monitoring Location Pages



Nitrate plus nitrite, water, in situ, milligrams per liter as nitrogen, [BTM]
 
-- Data temporarily unavailable for the time period specified --


Nitrate plus nitrite, water, in situ, milligrams per liter as nitrogen, [MID]

Most recent instantaneous value: 3.8 07-09-2025   01:45 CST
Graph of  Nitrate plus nitrite, water, in situ, milligrams per liter as nitrogen, [MID]

Add up to 2 more sites and replot for "Nitrate plus nitrite, water, in situ, milligrams per liter as nitrogen, [MID]"

?
 


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

See this graph on the Monitoring Location Pages