Please send monitoring data requests or questions to waterqualitydata@mwrd.org.

 

Ambient Water Quality Monitoring (AWQM) Program

AWQM Station Map (pdf)
AWQM Quality Assurance Project Plan (pdf)


Continuous Dissolved Oxygen Monitoring (CDOM) Program

CDOM Station Map

CDOM Station List

CDOM Quality Assurance Project Plan


Biological Monitoring

Biological, Habitat, and Sediment Quality Reports

Fish Species Collected in the Chicago Area Waterway System
 

Illinois Waterway Monitoring Program

Illinois Waterways Map

Illinois Waterways Station Table

Illinois Waterway Monitoring Project Quality Assurance Project Plan


Water Quality Data

2019 Waterway Ambient Water Quality                                                                                                   

2018 Waterway Ambient Water Quality

2017 Waterway Ambient Water Quality

 
Water Quality Reports

Report 19-13 Post-Construction Monitoring Report for the Calumet Tunnel and Reservoir Plan System

Report 18-01 Guidelines for “Optimal” Withdrawal of Discretionary Diversion to and Operation of the Aeration Stations on the Chicago Area Waterway System

Report 16-34 2015 Annual Summary Report Water Quality Within the Waterway System of the Metropolitan Water Reclamation District of Greater Chicago


Illinois Waterway Reports

Report 17-24 Water and Sediment Quality Along the Illinois Waterway From the Lockport Lock to the Peoria Lock Between 1977-2011 An Overview

Report 12-35 Water and Sediment Quality Along the Illinois Waterway From the Lockport Lock to the Peoria Lock During 2011

Report 11-42 Water and SedimentQuality Along the Illinois Waterway from the Lockport Lock to the Peoria Lock During 2010 

 

Water Quality Data Archives