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USGS 05543010 ILLINOIS RIVER AT SENECA, IL

  Stream Site

DESCRIPTION:
Latitude 41°17'59.6",   Longitude 88°36'51.1"   NAD83
Lasalle County, Illinois, Hydrologic Unit 07120005
Drainage area: 8,215 square miles
Datum of gage: 462.58 feet above   NAVD88.
AVAILABLE DATA:
Data Type Begin Date End Date Count
 Current / Historical Observations     (availability statement)    2012-10-16  2025-03-14  
 Daily Data
    Temperature, water, degrees Celsius  2012-10-16  2025-03-13  13151 
    Gage height, feet  2013-07-18  2025-03-13  4183 
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  2013-06-26  2025-03-13  10404 
    Dissolved oxygen, water, unfiltered, milligrams per liter  2013-06-27  2025-03-13  10863 
    pH, water, unfiltered, field, standard units  2013-06-26  2025-03-13  9631 
    Chlorophyll fluorescence (fChl), water, in situ, concentration estimated from reference material, micrograms per liter as chlorophyll  2022-03-15  2025-03-13  3177 
    Phycocyanin fluorescence (fPC), water, in situ, concentration estimated from reference material, micrograms per liter as phycocyanin  2013-06-26  2025-03-13  10413 
    Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)  2013-06-26  2025-03-13  10434 
    Nitrate plus nitrite, water, in situ, milligrams per liter as nitrogen  2013-07-18  2025-03-13  10655 
 Daily Statistics 
    Temperature, water, degrees Celsius  2012-10-16  2024-12-17 4293 
    Gage height, feet  2013-07-18  2024-12-17 4097 
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  2013-06-27  2024-12-17 3451 
    Dissolved oxygen, water, unfiltered, milligrams per liter  2013-06-27  2024-12-17 3529 
    Chlorophyll fluorescence (fChl), water, in situ, concentration estimated from reference material, micrograms per liter as chlorophyll  2024-09-04  2024-12-17 97 
    Phycocyanin fluorescence (fPC), water, in situ, concentration estimated from reference material, micrograms per liter as phycocyanin  2013-06-27  2024-03-14 3102 
    Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)  2013-06-27  2024-10-29 3349 
    Nitrate plus nitrite, water, in situ, milligrams per liter as nitrogen  2013-07-18  2024-12-17 3460 
 Monthly Statistics 
    Temperature, water, degrees Celsius  2012-10  2024-12  
    Gage height, feet  2013-07  2024-12  
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  2013-06  2024-12  
    Dissolved oxygen, water, unfiltered, milligrams per liter  2013-06  2024-12  
    Chlorophyll fluorescence (fChl), water, in situ, concentration estimated from reference material, micrograms per liter as chlorophyll  2024-09  2024-12  
    Phycocyanin fluorescence (fPC), water, in situ, concentration estimated from reference material, micrograms per liter as phycocyanin  2013-06  2024-03  
    Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)  2013-06  2024-10  
    Nitrate plus nitrite, water, in situ, milligrams per liter as nitrogen  2013-07  2024-12  
 Annual Statistics 
    Temperature, water, degrees Celsius  2013  2025  
    Gage height, feet  2013  2025  
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  2013  2025  
    Dissolved oxygen, water, unfiltered, milligrams per liter  2013  2025  
    Chlorophyll fluorescence (fChl), water, in situ, concentration estimated from reference material, micrograms per liter as chlorophyll  2024  2025  
    Phycocyanin fluorescence (fPC), water, in situ, concentration estimated from reference material, micrograms per liter as phycocyanin  2013  2024  
    Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)  2013  2025  
    Nitrate plus nitrite, water, in situ, milligrams per liter as nitrogen  2013  2025  
 Field measurements 2022-06-02  2022-06-02  1 
 Field/Lab water-quality samples 1979-04-25  2024-01-31  62 
 Water-Year Summary 2014  2024  11 
 Revisions  Loading...
OPERATION:
Record for this site is maintained by the USGS Illinois Water Science Center
Email questions about this site to Illinois Water Science Center Water-Data Inquiries