 the process of adopting disinfection technologies at its wastewater treatment facilities.
Read MWRD's statement on disinfection technology at the O'Brien and Calumet water reclamation plants.
- 2015: The IPCB accepted revised water use designations and standards for the CAWS. The following standards updates will have an immediate impact on the water quality of the Chicago River and the people, plants and wildlife that depend on it.
-Click here to compare the original and upgraded water quality standards for the CAWS.
-Click here to read all pollutants covered by the IPCB water quality standards.
Also in 2015, MWRD officially announced the successful installation of disinfection technology at the O’Brien and Calumet Water Reclamation Plants. In place for the 2016 recreational season, the disinfection technology eliminates harmful bacteria from effluent, making the Chicago River cleaner than ever before.