City of Chicago Department of Water Management filter and testing guidance
Use this only as an interim protection layer when replacement is not immediate and the utility-specific next step is still unresolved.
Filters and testing are interim safety layers. They are not equivalent to a utility-confirmed full replacement path.
Use this only when replacement is not immediate: filter guidance sits below inventory, notice, and replacement decisions. It is not a substitute for line replacement.
Use local utility guidance, then narrow to certified interim protection.
Maintenance tips
Use a certified filter as an interim protection step, not as a replacement for line replacement.
Use testing when it changes the next action or clarifies uncertainty.
Return to the utility lookup if the service-line status is still unclear.
Testing should change the next action, not distract from the utility record.
Official inventory page: https://www.leadsafechicago.org/water
Official lookup: https://www.leadsafechicago.org/water
Use the source stack that supports this interim route.
Chicago says homes built before 1986 are especially likely to have lead service lines and directs residents through Lead Safe Chicago water guidance to the inventory and free testing tools.
Chicago directs customers to contact [email protected] or 311 for lead service line replacement help and explains that city-assisted program paths are routed through that intake rather than treated as an automatic citywide replacement promise.
https://www.leadsafechicago.org/lead-service-line-replacement