JOLIET

PWSID: IL1970450 · JOLIET, IL · Serving 160,000 people

Type: CWSOwner: LSource: GW

Settlement eligible

May qualify for 3M/DuPont settlement funds

Compliant

All PFAS compounds below EPA Maximum Contaminant Levels.

EPA MCL: 4 ppt (parts per trillion) for PFOA and PFOS individually. Compliance deadline: 2031-12-31

Exact contamination levels

Upgrade to Pro to see PFOA/PFOS ppt values and MCL comparison charts.

PFAS compounds detected

54.7 ppt

Highest single detection

Highest detection

Pro feature

2025-08-14

Latest sample date

partial

Data completeness

All PFAS detection results

Source: EPA UCMR5 (UCMR5) · 638 compounds tested

Contaminant	Result (ppt)	MCL (ppt)	Status	Sample date
PFMBA	ND	—	Below MRL	2025-02-19
PFNA	ND	10	Below MRL	2025-02-19

636 more results hidden