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USGS 05553700 ILLINOIS RIVER AT STARVED ROCK, IL

  Stream Site

DESCRIPTION:
Latitude 41°19'29",   Longitude 88°59'02"   NAD27
Lasalle County, Illinois, Hydrologic Unit 07130001
Drainage area: 11,056.00 square miles
Contributing drainage area: 11,056.00 square miles,
AVAILABLE DATA:
Data Type Begin Date End Date Count
 Current / Historical Observations     (availability statement)    2018-06-05  2025-01-30  
 Daily Data
    Temperature, water, degrees Celsius -- BN  2021-09-24  2025-01-29  3516 
    Temperature, water, degrees Celsius -- SHD  2018-06-06  2022-04-11  3687 
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius -- SHD  2018-06-06  2022-04-11  3618 
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius -- BN  2021-09-24  2025-01-29  3393 
    Dissolved oxygen, water, unfiltered, milligrams per liter -- SHD  2018-06-06  2022-04-11  3669 
    Dissolved oxygen, water, unfiltered, milligrams per liter -- BN  2021-09-24  2025-01-29  3504 
    pH, water, unfiltered, field, standard units -- SHD  2018-06-06  2022-04-11  3705 
    pH, water, unfiltered, field, standard units -- BN  2021-09-24  2025-01-29  3510 
    Chlorophyll fluorescence (fChl), water, in situ, concentration estimated from reference material, micrograms per liter as chlorophyll -- BN  2022-01-31  2025-01-29  3111 
    Chlorophyll fluorescence (fChl), water, in situ, concentration estimated from reference material, micrograms per liter as chlorophyll -- SHD  2022-01-31  2022-04-11  213 
    Phycocyanin fluorescence (fPC), water, in situ, concentration estimated from reference material, micrograms per liter as phycocyanin -- BN  2021-09-24  2025-01-29  3504 
    Phycocyanin fluorescence (fPC), water, in situ, concentration estimated from reference material, micrograms per liter as phycocyanin -- SHD  2018-06-06  2022-04-11  3672 
    Orthophosphate, water, in situ, milligrams per liter as phosphorus -- BN  2022-03-16  2025-01-29  2373 
    Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU) -- BN  2021-09-24  2025-01-29  3498 
    Carbon dioxide, water, dissolved, at the water surface, parts per million by volume of dissolved gases  2022-03-24  2024-12-05  1836 
    Nitrate plus nitrite, water, in situ, milligrams per liter as nitrogen -- BN  2021-09-24  2025-01-29  3492 
 Daily Statistics 
    Temperature, water, degrees Celsius -- BN  2021-09-24  2024-11-17 1099 
    Temperature, water, degrees Celsius -- SHD  2018-06-06  2022-03-14 1201 
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius -- SHD  2018-06-06  2022-04-11 1206 
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius -- BN  2021-09-24  2024-11-17 1058 
    Dissolved oxygen, water, unfiltered, milligrams per liter -- SHD  2018-06-06  2022-04-11 1223 
    Dissolved oxygen, water, unfiltered, milligrams per liter -- BN  2021-09-24  2024-08-26 1012 
    Chlorophyll fluorescence (fChl), water, in situ, concentration estimated from reference material, micrograms per liter as chlorophyll -- BN  2024-05-22  2024-11-17 180 
    Phycocyanin fluorescence (fPC), water, in situ, concentration estimated from reference material, micrograms per liter as phycocyanin -- SHD  2018-06-06  2022-04-11 1224 
    Phycocyanin fluorescence (fPC), water, in situ, concentration estimated from reference material, micrograms per liter as phycocyanin -- BN  2021-09-24  2024-05-21 915 
    Orthophosphate, water, in situ, milligrams per liter as phosphorus -- BN  2022-03-16  2024-04-29 535 
    Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU) -- BN  2021-09-24  2024-11-17 1093 
    Carbon dioxide, water, dissolved, at the water surface, parts per million by volume of dissolved gases  2022-03-24  2024-10-24 580 
    Nitrate plus nitrite, water, in situ, milligrams per liter as nitrogen -- BN  2021-09-24  2024-08-26 1008 
 Monthly Statistics 
    Temperature, water, degrees Celsius -- BN  2021-09  2024-11  
    Temperature, water, degrees Celsius -- SHD  2018-06  2022-03  
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius -- SHD  2018-06  2022-04  
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius -- BN  2021-09  2024-11  
    Dissolved oxygen, water, unfiltered, milligrams per liter -- SHD  2018-06  2022-04  
    Dissolved oxygen, water, unfiltered, milligrams per liter -- BN  2021-09  2024-08  
    Chlorophyll fluorescence (fChl), water, in situ, concentration estimated from reference material, micrograms per liter as chlorophyll -- BN  2024-05  2024-11  
    Phycocyanin fluorescence (fPC), water, in situ, concentration estimated from reference material, micrograms per liter as phycocyanin -- SHD  2018-06  2022-04  
    Phycocyanin fluorescence (fPC), water, in situ, concentration estimated from reference material, micrograms per liter as phycocyanin -- BN  2021-09  2024-05  
    Orthophosphate, water, in situ, milligrams per liter as phosphorus -- BN  2022-03  2024-04  
    Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU) -- BN  2021-09  2024-11  
    Carbon dioxide, water, dissolved, at the water surface, parts per million by volume of dissolved gases  2022-03  2024-10  
    Nitrate plus nitrite, water, in situ, milligrams per liter as nitrogen -- BN  2021-09  2024-08  
 Annual Statistics 
    Temperature, water, degrees Celsius -- BN  2021  2025  
    Temperature, water, degrees Celsius -- SHD  2018  2022  
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius -- SHD  2018  2022  
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius -- BN  2021  2025  
    Dissolved oxygen, water, unfiltered, milligrams per liter -- SHD  2018  2022  
    Dissolved oxygen, water, unfiltered, milligrams per liter -- BN  2021  2024  
    Chlorophyll fluorescence (fChl), water, in situ, concentration estimated from reference material, micrograms per liter as chlorophyll -- BN  2024  2025  
    Phycocyanin fluorescence (fPC), water, in situ, concentration estimated from reference material, micrograms per liter as phycocyanin -- SHD  2018  2022  
    Phycocyanin fluorescence (fPC), water, in situ, concentration estimated from reference material, micrograms per liter as phycocyanin -- BN  2021  2024  
    Orthophosphate, water, in situ, milligrams per liter as phosphorus -- BN  2022  2024  
    Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU) -- BN  2021  2025  
    Carbon dioxide, water, dissolved, at the water surface, parts per million by volume of dissolved gases  2022  2025  
    Nitrate plus nitrite, water, in situ, milligrams per liter as nitrogen -- BN  2021  2024  
 Field measurements 2022-06-02  2022-06-02  1 
 Field/Lab water-quality samples 1978-12-07  2024-02-27  147 
 Water-Year Summary 2018  2024  7 
 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