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The Mill Street Wastewater Treatment Plant
Welcome to the Combined Sewer Overflow (CSO) Long Term Control Plan website for the City of Rock Island, Illinois!
Use the links on the left to learn more about the plan. If you are involved in implementing the CSO Long Term Control Plan click on “Project Staff Only” for more detailed plan information (login and password are required).
Some documents are in PDF format. If you do not have a program to view PDF files, click here to download Adobe Reader software for free.