Illinois American Water Launches Annual Metro East Maintenance Program

Crews will conduct rapid-flow flushing of water mains and testing of fire hydrants throughout the service area. Residents may notice brief drops in water pressure or temporary discoloration. If water appears murky, the utility advises running cold water until it clears and postponing laundry until the sediment settles.

Simultaneously, the utility’s quality team is transitioning treatment at the East St. Louis and Granite City plants to free chlorine, a stronger disinfectant that excludes ammonia. While this change may alter the taste or odor of tap water, officials emphasize it remains safe for use. Specialized facilities, including hospitals and dialysis centers, have received direct notification regarding the treatment adjustment. The work impacts a wide range of communities, from Belleville and Granite City to Scott Air Force Base, with customers encouraged to monitor updates through the MyWater portal or the company’s alert page.