Illinois American Water Returns to Normal Water Treatment Process

Belleville, Ill. (Jan. 11, 2018) — Illinois American Water is returning to its normal water treatment process.
During the temporary treatment change, some customers may have experienced a more noticeable chlorine taste or odor in their water. This was due to the switch in chlorine types. The company expects this to be resolved over the next week.

According to Karen Cooper, senior manager of field operations and production, said, “The changes we made in our treatment processes, coupled with the other measures we requested of our customers, were to ensure high-quality drinking water.”

She continued, “We understand this was an inconvenience to our customers and we thank them for their trust in us and our team as we worked through several issues brought on by the winter weather. I can’t say it enough, our customers are incredible and were truly supportive and understanding. We greatly appreciate it.”

Illinois American Water customers are being notified of the return to normal treatment via media outreach, customer calls and website alerts at Information is also provided to customer service center representatives.

About Illinois American Water - Illinois American Water, a subsidiary of American Water (NYSE: AWK), is the largest investor-owned water utility in the state, providing high-quality and reliable water and/or wastewater services to approximately 1.3 million people. American Water also operates a customer service center in Alton and a quality control and research laboratory in Belleville.

With a history dating back to 1886, American Water is the largest and most geographically diverse U.S. publicly-traded water and wastewater utility company. The company employs more than 6,700 dedicated professionals who provide regulated and market-based drinking water, wastewater and other related services to an estimated 15 million people in 47 states and Ontario, Canada. More information can be found by visiting