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.

WQP Home >  Providers >  STORET >  IL_EPA_WQX >  IL_EPA_WQX-5N

Lake Michigan (IL_EPA_WQX-5N) site data in the Water Quality Portal

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

This great lake site, maintained by the illinois epa (identifier IL_EPA_WQX), has the name "Lake Michigan" and has the identifier IL_EPA_WQX-5N. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)04190000.

This site is located in Lake County County, Illinois at 42.3111150000 degrees latitude and -87.8111150000 degrees longitude using the datum NAD27. No horizontal location accuracy metadata is available.

To download the metadata about this site along with water quality data, go to the Portal Page and enter "IL_EPA_WQX-5N" 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 1999 - 2008
Biological, Algae, Phytoplankton, Photosynthetic Pigments 1999 - 2008
Biological, Photosynthetic Pigments 1999 - 2008
Inorganics, Major, Metals 1999 - 2008
Inorganics, Major, Non-metals 1999 - 2008
Inorganics, Minor, Metals 1999 - 2008
Inorganics, Minor, Non-metals 1999 - 2008
Nutrient 1999 - 2008
Organics, Other 1999 - 2006
Physical 1999 - 2008
*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 IL_EPA_WQX
OrganizationFormalName illinois epa
MonitoringLocationIdentifier IL_EPA_WQX-5N
MonitoringLocationName Lake Michigan
MonitoringLocationTypeName Great Lake
HUCEightDigitCode 04190000
LatitudeMeasure 42.3111150000
LongitudeMeasure -87.8111150000
SourceMapScaleNumeric 24000
HorizontalCollectionMethodName Interpolation-Map
HorizontalCoordinateReferenceSystemDatumName NAD27
CountryCode US
StateCode 17
CountyCode 097
ProviderName STORET