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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 >  STORET >  MWRDSTOR >  MWRDSTOR-WW 34

North Branch Chicago River @ Dempster St.. (MWRDSTOR-WW 34) site data in the Water Quality Portal

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

This river/stream site, maintained by the Metropolitan Water Reclamation District of Greater Chicago (identifier MWRDSTOR), has the name "North Branch Chicago River @ Dempster St.." and has the identifier MWRDSTOR-WW 34. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)07120003.

This site is located in Cook County County, Illinois at 42.0408333 degrees latitude and -87.7095000 degrees longitude using the datum UNKWN. No horizontal location accuracy metadata is available. This site is at an elevation of 0 ft No vertical location accuracy metadata is available.

To download the metadata about this site along with water quality data, go to the Portal Page and enter "MWRDSTOR-WW 34" 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 2002 - 2003
Inorganics, Major, Metals 2000 - 2003
Inorganics, Major, Non-metals 2000 - 2003
Inorganics, Minor, Metals 2000 - 2003
Inorganics, Minor, Non-metals 2000 - 2003
Microbiological 2000 - 2003
Nutrient 2000 - 2003
Organics, Other 2000 - 2003
Physical 2000 - 2003
Radiochemical 2001 - 2003
*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 MWRDSTOR
OrganizationFormalName Metropolitan Water Reclamation District of Greater Chicago
MonitoringLocationIdentifier MWRDSTOR-WW 34
MonitoringLocationName North Branch Chicago River @ Dempster St..
MonitoringLocationTypeName River/Stream
HUCEightDigitCode 07120003
LatitudeMeasure 42.0408333
LongitudeMeasure -87.7095000
HorizontalCollectionMethodName GPS-Unspecified
HorizontalCoordinateReferenceSystemDatumName UNKWN
VerticalMeasure/MeasureValue 0
VerticalMeasure/MeasureUnitCode ft
VerticalCoordinateReferenceSystemDatumName Unknown
CountryCode US
StateCode 17
CountyCode 031
ProviderName STORET