Contact

We’re looking forward to hearing from you! Use the form or phone numbers below to get in touch with a Four Rivers team member.
If you need to contact FRSA about lab analysis services, visit our Lab Services page.
If you need to contact a specific department within FRSA, visit our Departments page.
Graceffa Administration Building
3501 Kishwaukee Street
Rockford, IL 61109
Wastewater Treatment Plant
3333 Kishwaukee Street
Rockford, IL 61109
Main Phone Number
815-387-7400
Sewer Backup Number
(24 hours per day)
815-387-7600
Sewer Toxic Spill Number
(24 hours per day)
815-387-7455
Business Hours
Monday – Friday
8:00 A.M. – 4:30 P.M. (Except Holidays)
Drive-Up Payment Window
Monday – Friday
8:30 A.M. – 4:30 P.M. (Except Holidays)
Holidays
Memorial Day: Monday, May 30, 2022
Independence Day: Monday, July 4, 2022
Labor Day: Monday, September 5, 2022
Columbus Day: Monday, October 10, 2022
Veteran’s Day: Friday November 11, 2022
Thanksgiving Holiday: Thursday November 24, 2022
Friday After Thanksgiving: Friday November 25, 2022
Christmas Eve: Friday, December 23, 2022
Christmas Day: Monday, December 26, 2022
New Year’s Day: Friday, December 30, 2022
President’s Day: Monday, February 20, 2023
Good Friday: Friday, April 7, 2023
General Contact
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