Who We Are

We’re a team of skilled biologists, chemists and committed boots-on-the-ground environmentalists who keep our critical regional watersheds safe and healthy. Here’s everything you need to know about Four Rivers Sanitation Authority.

Who We Serve

Kayaking on a river

Four Rivers serves approximately 240,000 people in Winnebago County, including Rockford, Loves Park, Machesney Park, Roscoe, Cherry Valley, New Milford, Winnebago, and a small portion of Rockton and Boone County, covering nearly 100 square miles and a 1,100-mile-long network of buried sewers from residences, industrial sites and other businesses.


Meet the members of the Four Rivers Sanitation Authority’s management team who provide a depth of industry and operating experience that is fundamental to the success of FRSA in bringing fresh, clean water to the communities we serve.


Since 1926, Four Rivers Sanitation Authority has been providing progressive wastewater and sewage treatment services for the Rockford region and the surrounding communities, but there’s more to that story.


FRSA Employees

Four Rivers is the result of multiple expert departments working together to provide innovative wastewater and sewage solutions to the community. Click “Learn More” below to see the departments that keep FRSA moving forward.

Board Meetings & Governance

Looking for more information about Four Rivers Sanitation Authority Board meetings? Review a complete FRSA board meeting schedule and recap of previous meetings in our Board Meetings & Governance page.

Financial Reports & Code of Ordinances

We believe in transparency. That’s why we offer the last few years of financial reports, including annual operating budgets, payroll, clerk’s reports, ​​user rates and fee ordinances, and more, in our Financial Reports & Code of Ordinances page.


Have a question for the FRSA? We might have already answered it! Click “Learn More” to check out FAQs to the FRSA from billing to meters, tips and other miscellaneous questions.