Skip to content

Illinois-American to start special treatment of O’Fallon’s water system


O’FALLON, Ill. – Illinois-American Water Company will begin the annual special treatment of O’Fallon’s water system on Aug. 4.

Illinois American Water will be temporarily changing the type of disinfectant used in the water as it does this time each year. Instead of combining the chlorine in the water with ammonia, the company will be adding chlorine only. The city says it will be notified when the company goes back to the normal type of disinfectant in approximately four to five weeks.

The safety of the water will not be affected by this temporary change, the city said in a release. Many water plants use chlorine in the free, uncombined form on a regular basis. Illinois American Water will continue to supply water that meets the requirements of the Illinois Environmental Protection Agency.

There is no need to boil the water. If an objectionable difference in odor is noticed, water drawn from the tap should be allowed to sit in the refrigerator for a few hours. Dialysis patients and renal care facilities should be aware of these changes and adjust their health care practices accordingly.

The change is needed to remove residues that have been collected due to their normal disinfection practices.

The city buys treated water wholesale from the private company, Illinois-American, and then pumps it to all water customers. Illinois-American will be treating the water prior to its delivery to the City of O’Fallon’s pumping station in French Village.

For more information, contact O’Fallon Public Works Department at (618) 624-4500 ext. 3.

— From the Illinois Business Journal

Leave a Comment