The Metropolitan Water Reclamation District of Greater Chicago issued a request on September 19, 2026 for residents throughout the Chicago area to limit their water consumption in anticipation of a series of rain showers and thunderstorms. The agency’s guidance asks households to postpone non‑essential uses such as taking showers, flushing toilets only when necessary, and delaying operation of dishwashers and washing machines.
The appeal is presented as a voluntary measure aimed at protecting the quality of the municipal water supply and reducing the risk of flooding that can accompany heavy precipitation. By curbing demand, officials hope to lessen the strain on treatment facilities and drainage systems that could be overwhelmed by rapid runoff during the forecasted weather events.
Weather forecasts for the region indicated multiple waves of rain and thunderstorms over the coming days, prompting the water agency to act pre‑emptively. The district noted that while the guidance is not mandatory, cooperation from the public would help maintain system stability and safeguard water resources during periods of heightened runoff.
The Metropolitan Water Reclamation District of Greater Chicago manages wastewater treatment and storm‑water control for the city and surrounding suburbs. Its request aligns with standard conservation practices employed during periods of expected high rainfall, when excess water can combine with sewage flows and challenge treatment capacity. The agency emphasized that the recommended actions are simple steps that can be incorporated into daily routines without significant inconvenience.
Officials also reminded residents that the conservation effort is part of a broader strategy to ensure that water quality remains high and that flood‑related damages are minimized. The district encouraged the community to stay informed about weather updates and to follow any additional advisories that may be issued as conditions evolve.