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Oak Brook strives to deliver a consistent, high quality, drinking water. Many steps must be taken to attain this goal. Daily monitoring is conducted at all three receiving stations. Numerous water samples are collected throughout the village during the year to meet State and Federal water quality requirements. If you would like to view the Comprehensive Chemical Analysis form, please visit DuPage Water Commission - Comprehensive Chemical Analysis.
Oak Brook Water System Annual Consumer Confidence Report. Click here is see the most recent Water Quality Report.