WHAT'S NEW
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NOTICE OF AVAILABILTY OF 2025 WATER QUALITY REPORT
We are pleased to present to you this year's Annual Water Quality Report. This report is designed to inform you about the quality water and services we deliver to you every day. Our constant goal is to provide you with a safe and dependable supply of drinking water. We want you to understand the efforts we make to continually improve the water treatment process and protect our water resources. Glenbrook Sanitary Water District’s source of water is from the City of Highland Park, their supply is obtained from Lake Michigan. A copy of the
water source assessment is available upon request by contacting Jean Scher at 847-363-3636, or Click Here.
Glenbrook Sanitary District
Posted: 5/27/2026
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We’ve Moved Our Mailing Address
To better serve our water and sewer customers, Glenbrook Sanitary District has changed its business mailing address.
Our new address is:
PO Box 504
Waukegan, Illinois 60079
Have questions or need assistance? Our team is here to help at 847‑604‑8280.
Posted:5/7/20026
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LEGAL NOTICE
NOTICE OF PUBLIC HEARING
Notice is hereby given by Glenbrook Sanitary District, County of Cook, State of Illinois, that a Tentative Combined Annual Budget and Appropriation Ordinance for the said Sanitary District for the Fiscal Year beginning on the First day of July, 2026, and ending on the Thirtieth day of June, 2027, will be on file and available for inspection on April 27, 2026, after 9:00AM, via the Glenbrook Sanitary District’s website at www.gsd.illinois.gov. To review the Tentative Combined Annual Budget and Appropriation Ordinance Click Here.
Notice is further given that a Public Hearing on said Budget will be held at 9:30 A.M., June 4, 2026, at the Northbrook Public Library, 1201 Cedar Lane, Northbrook, IL 60062, Civic Room.
Posted: 4/21/2026
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NOTICE OF INCREASED WATER/SEWER RATES EFFECTIVE NOVEMBER 2025
The District Board has approved a water & sewer rate increase. The new rates will begin November 1, 2025. For more information, please view Ordinance 169 and the mailing notice.
If you have any questions, you may contact Glenbrook Sanitary District at 847-604-8280 or email us at info@gsd.illinois.gov.
Posted: 6/17/2025
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LEGAL NOTICE
Notice is hereby given by Glenbrook Sanitary District, County of Cook, State of Illinois, that the Combined Annual Budget and Appropriation Ordinance for the said Sanitary District for the Fiscal Year beginning on the First day of July, 2025, and ending on the Thirtieth day of June, 2026, was approved. A copy is available for review via the Glenbrook Sanitary District’s website at www.gsd.illinois.gov. To review the Combined Annual Budget and Appropriation Ordinance Click Here.
Glenbrook Sanitary District
Posted: 6/17/2025
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Important Notice: Be Aware of Potential Scam Activity
Dear Glenbrook Sanitary District Customers,
We want to bring to your attention a potential scam that has been targeting residents in Lake County area.
Please be advised that Glenbrook Sanitary District employees will never ask to enter your home without prior notification. If someone comes to your door claiming to be from the Sanitary District, do not allow them entry without verification.
For your safety, we recommend the following precautions:
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Verify Identification: Always ask for official identification.
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Call for Confirmation: If you have any doubts, please contact our office at 847-604-8280 to verify the authenticity of any visit.
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Do Not Share Personal Information: Never share personal or financial information with someone you do not trust.
We are committed to your safety and appreciate your cooperation in this matter. If you encounter anyone suspicious, please report it to local law enforcement immediately.
Thank you for your attention to this important matter.
Sincerely,
Glenbrook Sanitary District
Posted: 3/26/2025
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NOTICE OF OFFERING ELECTRONIC PAYMENTS
VIA AUTOMATED CLEARING HOUSE (ACH)
The Glenbrook Sanitary District will begin offering an ACH bank draft program (direct withdrawal) to all of our water & sewer customers. This service assures your payment will be received in a timely manner as well as provide a safe and secure way to pay your water/sewer bill. For more information, please view the mailing notice.
If you have any questions, you may contact Maria Martinez at 847-604-8280 or email us at info@gsd.illinois.gov.