PWSID
IL0972000
State
Illinois
City
ZION
Population served
24,442
Primary source
SWP
Score history
No change since tracking began Jun 18, 2026.
2 score updates logged since tracking began Jun 18, 2026. Each future EPA re-score adds a point.
PFAS & contaminant readings
Latest detections from EPA’s UCMR5 monitoring (through Jan 2025). Levels in parts per trillion (ppt).
Lithium
43,300 ppt
limit —
Violations & enforcement
4
Violations on record
2
Unaddressed
0
Health-based
20
Enforcement actions
From EPA ECHO (SDWIS), most recent enforcement Aug 2025. Official EPA record →
Recent enforcement actions
- State action · SIA Aug 2025
- State action · SIF Dec 2024
- State action · SOX Dec 2024
- State action · SIA Nov 2024
- State action · SIE Oct 2023
- State action · SIA Oct 2023
- State action · SOX Jun 2015
- State action · SIA Sep 2014
This profile is built from EPA public records for system IL0972000 — SDWIS violations and UCMR5 PFAS sampling. The score is system-level and can’t account for your home’s plumbing (older pipes can add lead at the tap). For health decisions, check your exact address, read the utility’s Consumer Confidence Report, and confirm with your provider.