Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

New WQX 3.0 profiles are available at waterqualitydata.us/beta/. These profiles will contain recent USGS data added since March 11, 2024, which marks the beginning of limited accessibility for USGS data. Read more about the 3.0 profiles and associated changes here.

This legacy user interface will continue to function for several weeks. However, this user interface only serves WQX2.2 profiles, which do NOT contain USGS data added after March 11, 2024.

WQP Home >  Providers >  NWIS >  USGS-IL >  USGS-05543500

ILLINOIS RIVER AT MARSEILLES, IL (USGS-05543500) site data in the Water Quality Portal

Data Provider: NWIS (Learn more about Water Quality Portal Data Providers)

This stream site, maintained by the USGS Illinois Water Science Center (identifier USGS-IL), has the name "ILLINOIS RIVER AT MARSEILLES, IL" and has the identifier USGS-05543500. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)07120005. See more details of this site the the USGS NWIS Web page for this site. This site has a drainage area of 8259 sq mi.

This site is located in Lasalle County County, Illinois at 41.32700000000000 degrees latitude and -88.7170833000000 degrees longitude using the datum NAD83. The horizontal location collection method was "Interpolated from Digital MAP." and the accuracy is 5 seconds. This site is at an elevation of 452.77 feet and the accuracy of the elevation measurement, collected using the method "GNSS2 - Level 2 Quality Survey Grade Global Navigation Satellite System" is .02 feet. The vertical coordinate reference system is NAVD88.

To download the metadata about this site along with water quality data, go to the Portal Page and enter "USGS-05543500" into the "Site ID" box under Site Parameters

What other monitoring locations are upstream or downstream from this one?

Upstream and downstream locations

This map shows all Water Quality Portal stations that are 10 miles upstream (dashed dark blue) and 10 miles downstream (solid light blue) of this monitoring location (indicated by the large blue circle). The upstream and downstream functionality is provided by the Network Linked Data Index.

When were data collected at this location?

Periods of record for data characteristic groups

For a more detailed breakdown of data, go to the Monitoring Report at the EPA How's My Waterway Application
Characteristic Group Date Range*
Biological, Algae, Cyanobacteria 2023 - 2023
Biological, Algae, Phytoplankton 1975 - 1981
Biological, Algae, Phytoplankton, Cyanobacteria, Periphyton 1976 - 1989
Biological, Algae, Phytoplankton, Photosynthetic Pigments 1976 - 2023
Biological, Counts 1975 - 1981
Biological, Photosynthetic Pigments 1976 - 1990
Information 1987 - 2018
Inorganics, Major, Metals 1974 - 2015
Inorganics, Major, Non-metals 1974 - 2018
Inorganics, Minor, Metals 1970 - 2015
Inorganics, Minor, Non-metals 1970 - 2015
Microbiological 1974 - 1996
Nutrient 1974 - 2015
Organics, Other 1974 - 2015
Organics, PCBs 1987 - 2015
Organics, Pesticide 1987 - 2015
PFAS,Perfluorinated Alkyl Substance 2015 - 2015
Physical 1970 - 2018
Radiochemical 1981 - 2015
Sediment 1975 - 1997
Stable Isotopes 2015 - 2015
*Date ranges may contain gap years

What other information is available for this location?

Detailed Metadata

For the definitions of the metadata elements, please go to the Water Quality Portal user guide

Location Metadata Value
OrganizationIdentifier USGS-IL
OrganizationFormalName USGS Illinois Water Science Center
MonitoringLocationIdentifier USGS-05543500
MonitoringLocationName ILLINOIS RIVER AT MARSEILLES, IL
MonitoringLocationTypeName Stream
HUCEightDigitCode 07120005
DrainageAreaMeasure/MeasureValue 8259
DrainageAreaMeasure/MeasureUnitCode sq mi
LatitudeMeasure 41.32700000000000
LongitudeMeasure -88.7170833000000
HorizontalAccuracyMeasure/MeasureValue 5
HorizontalAccuracyMeasure/MeasureUnitCode seconds
HorizontalCollectionMethodName Interpolated from Digital MAP.
HorizontalCoordinateReferenceSystemDatumName NAD83
VerticalMeasure/MeasureValue 452.77
VerticalMeasure/MeasureUnitCode feet
VerticalAccuracyMeasure/MeasureValue .02
VerticalAccuracyMeasure/MeasureUnitCode feet
VerticalCollectionMethodName GNSS2 - Level 2 Quality Survey Grade Global Navigation Satellite System
VerticalCoordinateReferenceSystemDatumName NAVD88
CountryCode US
StateCode 17
CountyCode 099
ProviderName NWIS