Joliet, IL

Joliet tap water has 1 contaminant currently measured above EPA legal standards (Maximum Contaminant Levels), and 4 above independent health guidelines. 3 contaminants have been detected in the water supply, including Lead, Pfpea, Lithium. View the detailed report for each water system to see specific levels, how they compare to both legal limits and health guidelines, and what actions to take.

Monitoring has detected 3 contaminants in Joliet's water supply: Lead, Pfpea, Lithium. Additionally, 3 PFAS compounds have been detected at trace levels. 1 of these are above EPA legal limits. 4 exceed health guidelines. See individual system reports for concentrations relative to EPA limits.

Yes. 3 PFAS compounds have been detected in Joliet's water supply at trace levels. PFAS are sometimes called "forever chemicals" because they do not break down in the environment. The EPA has set Maximum Contaminant Levels for several PFAS compounds. View the detailed report for specific concentrations.

Joliet's drinking water comes from groundwater wells that draw from underground aquifers. The water is treated and tested according to Illinois EPA and EPA requirements before distribution. Joliet is served by 8 water systems, the largest being CRYSTAL LAWNS ADDITION IMPROVEMENT ASSOC (serving 1,435 people).