Chicago
Chicago Department of Water Management
Lake Michigan surface waterIllinois regional water guide
Chicago, Cook County and Near-West Suburbs
Chicago and the inner-ring Cook County communities where Lake Michigan water, wholesale supply relationships, older distribution systems and address-level provider verification shape treatment decisions.
Regional context
Use the regional hub, then verify the exact property
Chicago and the inner-ring Cook County communities where Lake Michigan water, wholesale supply relationships, older distribution systems and address-level provider verification shape treatment decisions. The city pages below identify provider and source-water research starting points, but the current bill and PWSID remain the decisive identifiers.
Do not treat the metro as one water system. Communities within the same labor market can use Lake Michigan water, groundwater, river water, reservoirs or purchased supply from different wholesalers.
Cicero
Town of Cicero public water system
Purchased Lake Michigan waterBerwyn
Berwyn municipal distribution system or regional wholesale supplier
Purchased or directly treated Lake Michigan surface waterOak Park
Oak Park municipal distribution system or regional wholesale supplier
Purchased or directly treated Lake Michigan surface waterForest Park
Village of Forest Park public water system
Purchased Lake Michigan surface waterRiver Forest
River Forest municipal distribution system or regional wholesale supplier
Purchased or directly treated Lake Michigan surface waterMaywood
Village of Maywood public water system
Purchased Lake Michigan surface waterBellwood
Bellwood municipal distribution system or regional wholesale supplier
Purchased or directly treated Lake Michigan surface waterMelrose Park
Melrose Park municipal distribution system or regional wholesale supplier
Purchased or directly treated Lake Michigan surface waterElmwood Park
Elmwood Park municipal distribution system or regional wholesale supplier
Purchased or directly treated Lake Michigan surface waterBrookfield
Brookfield municipal distribution system or regional wholesale supplier
Purchased or directly treated Lake Michigan surface waterLa Grange
La Grange municipal distribution system or regional wholesale supplier
Purchased or directly treated Lake Michigan surface waterLa Grange Park
La Grange Park municipal distribution system or regional wholesale supplier
Purchased or directly treated Lake Michigan surface waterWestern Springs
Western Springs municipal distribution system or regional wholesale supplier
Purchased or directly treated Lake Michigan surface waterWestchester
Westchester municipal distribution system or regional wholesale supplier
Purchased or directly treated Lake Michigan surface waterBroadview
Broadview municipal distribution system or regional wholesale supplier
Purchased or directly treated Lake Michigan surface waterRegional connection
Chicago and Northwest Indiana form one cross-border market
Lake Michigan supply networks and municipal distribution systems change at the state line. Use the Indiana regional guide for Lake County and Northwest Indiana properties.
Treatment planning
Match system design to the verified water problem
Regional information organizes the search. Property-level testing, plumbing conditions, peak flow and the exact certified treatment claim determine the final system.
