Water Quality Standards

The Village of Arlington Heights Water Utility is proud to provide high-quality drinking water that is clean and safe for you and your family to consume. In fact, the water supplied by the Village complies with all U.S. Environmental Protection Agency (USEPA) standards, including those for lead.

It is important to note that there is no adverse situation currently affecting the quality of our water supply. The Village simply wants water consumers to be informed as much as possible when it comes to your drinking water.

Beginning in 1985, the Village changed from a deep well ground water source to Lake Michigan surface water. The City of Evanston provides complete water treatment and filtration of all water supplied to Village of Arlington Heights municipal water customers. The Evanston plant adds fluoride and chlorine to the water in accordance with State and Federal guidelines. Additionally, the Evanston plant adds poly orthophosphate as a corrosion inhibitor to guard against lead and copper contamination of the drinking water supply. The Northwest Water Commission (NWC) receives water from the Evanston plant and distributes the water to the four NWC member communities, which includes Arlington Heights.