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

Sewer Backup Number
(24 hours per day)

Sewer Toxic Spill Number
(24 hours per day)

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)

Our offices are closed on the following 2023 holidays:

New Year’s Day – Mon, Jan 2

President’s Day – Mon, Feb 20

Good Friday – Fri, Apr 7

Memorial Day – Mon, May 29

Independence Day – Tue, Jul 4

Labor Day – Mon, Sep 4

Columbus Day – Mon, Oct 9

Veteran’s Day – Friday, Nov 10

Thanksgiving – Thu, Nov 23

Friday After Thanksgiving – Fri, Nov 24

Christmas Eve – Fri, Dec 22

Christmas Day – Mon, Dec 25

General Contact

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