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 2024 holidays:

New Year’s Day – Mon, Jan 1

President’s Day – Mon, Feb 19

Good Friday – Fri, Mar 29

Memorial Day – Mon, May 27

Independence Day – Thu, Jul 4

Labor Day – Mon, Sep 2

Columbus Day – Mon, Oct 14

Veteran’s Day – Mon, Nov 11

Thanksgiving – Thu, Nov 28

Friday After Thanksgiving – Fri, Nov 29

Christmas Eve – Tue, Dec 24

Christmas Day – Wed, Dec 25

General Contact

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