Chicago Area Waterways Water Quality Monitoring
Please send monitoring data requests or questions to waterqualitydata@mwrd.org.
Ambient Water Quality Monitoring (AWQM)
AWQM Station Map
AWQM Quality Assurance Project Plan
Continuous Dissolved Oxygen Monitoring (CDOM)
CDOM Station Map
CDOM Station List
CDOM Quality Assurance Project Plan
Report No. 23-34 Continuous Dissolved Oxygen Monitoring in the Service Area of the Metropolitan Water Reclamation District of Greater Chicago During 2022
Biological Monitoring
Fish Species Collected in the Chicago Area Waterway System
Water Quality Data
2023 Waterway Ambient Water Quality
2022 Waterway Ambient Water Quality
2021 Waterway Ambient Water Quality
2020 Waterway Ambient Water Quality
2019 Waterway Ambient Water Quality
Argonne Microbiome Research
Chicago Area Waterway System Argonne Microbiome Research - Phase III Final Report - July, 2020
Chicago Area Waterway System Argonne Microbiome Research Phase III Final Report Addendum September, 2020
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
Sensitive Area Considerations
Report 18-09 Sensitive Area Considerations for Outfalls Designated in National Pollutant Discharge Elimination System Permit Number IL0028088 for the Terrence J. O’Brien Water Reclamation Plant
Illinois Waterway Monitoring
Illinois Waterways Map
Illinois Waterways Station Table
Illinois Waterway Monitoring Project Quality Assurance Project Plan