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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 (PDF).
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The Village of Oak Brook Water Department typically receives an increase in taste and odor complaints during the summer months when water temperatures increase. Most complaints generally are that the water has an earthy, musty smell and taste. This is generally the result of compounds produced by blue-green algae and other vegetation found in Lake Michigan. Taste and odors may be more noticeable when the lake water gets warmer. Refrigerating the water will minimize the taste and odors. The presence of taste and odors does not affect the safety of the drinking water. The Chicago Water Department adds powdered activated carbon (PAC) to the water at the Jardine Water Purification Plant. The application rate of PAC is based upon the concentration of water vegetation and the number of taste and odor complaints received.
Residents are urged to contact the village with any taste and odor complaints. Once received, they are forwarded to the DuPage Water Commission, who then logs them with the City of Chicago Water Department. When there is a rise in complaints, they increase their treatment. However, due to the distance, it takes approximately 24 hours for the DuPage Water Commission to receive the water. It then takes another 24 hours to get into the village’s distribution system. We also suggest residents refrigerate their drinking water. The decreased temperature helps alleviate the problem.
As a contractual condition of receiving Lake Michigan water each utility has to enact indoor and outdoor water restrictions. The indoor water restrictions include plumbing codes that require the installation of water conserving fixtures. Outdoor water restrictions include such things as restricting water sprinkling during the hottest time of the day to minimize evaporation.
Many customers might think that because we are supplied with lake water, watering restrictions are unnecessary. This is not the case. Contractually, we are restricted to how much we can obtain through the Commission, and like the other end users of lake water, outside watering restrictions are mandated. The following are watering restrictions for the village. Please note, these restrictions were developed to insure sufficient and proper times to satisfy lawn care needs.
Please contact the Public Works Department at (630) 368-5270 if you have any additional questions or concerns.