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The original item was published from 5/18/2021 11:46:00 AM to 7/1/2021 12:00:03 AM.

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Posted on: May 18, 2021

[ARCHIVED] Water System Cross-Connection Control Program

Safe Water

The Village of Oak Brook is dedicated to providing water to your home that is safe and clean. An important part of this is ensuring the effective control of cross connections. A cross connection is a point where your water supply pipe comes into contact with a source that could contaminate the water. Lawn irrigation systems, fire sprinklers, hot tubs/spas and in ground pools are examples of cross connections. If left unprotected, cross connections can allow contaminants or pollutants to enter the water system through "backflow". Backflow occurs when a drop in water pressure causes water to flow in the opposite direction, increasing the potential for contaminated water to flow back into the system.

To ensure the integrity of the water supply, the Village has established a Cross Connection Control program in compliance with Illinois Environmental Protection Agency (IEPA) requirements. Backflow Solutions, Inc. is a professional service company contracted by the Village to inspect the water supply and assist in the maintenance of this program.  Your participation in a comprehensive survey of the water system will help determine where cross connections exist.

A survey letter from Backflow Solutions on behalf of the Village will be mailed to all Village of Oak Brook residential water system accounts during the week of May 17, 2021.

Please complete your online survey at or you can mail the completed survey to Village of Oak Brook Cross-Connection Control Program, PO Box 246, Worth, IL 60482

The cross connection survey is available here. (PDF)

By working together and cooperating in this critical program, we can further protect our water from potential contamination.

Please complete the survey to the best of your ability or consult a licensed plumber for assistance. If you have any questions, please reach out to the BSI Customer Service Team: 888-966-6050 or email

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