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Water system · PWSID IL1670550

ILLIOPOLIS

ILLIOPOLIS, IL · ~1,037 people served

Check your exact address → ILLIOPOLIS overview
100
Excellent
PurityRadar safety score

PWSID

IL1670550

State

Illinois

City

ILLIOPOLIS

Population served

1,037

Primary source

GWP

Score history

No change since tracking began Jun 18, 2026.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 100

2 score updates logged since tracking began Jun 18, 2026. Each future EPA re-score adds a point.

PFAS & contaminant readings

No PFAS detections are on record for this system from EPA’s UCMR5 monitoring (2023–25). Absence of a detection isn’t a guarantee — not every system was sampled, and this dataset doesn’t cover other contaminants.

Violations & enforcement

14

Violations on record

0

Unaddressed

5

Health-based

52

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Aug 2025. Official EPA record →

Monitoring & reporting · Haloacetic acids (HAA5) began Apr 2025 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Apr 2025 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Jul 2024 Resolved
Monitoring & reporting · Lead & Copper Rule began Oct 2023 Resolved
Other · EPA contaminant 7000 began Jul 2023 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Apr 2022 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jan 2022 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Oct 2021 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jul 2021 Resolved
Monitoring & reporting · EPA contaminant 0999 began Jan 2020 Resolved
Monitoring & reporting · Lead & Copper Rule began Jan 2017 Resolved
Other · EPA contaminant 7500 began Oct 2006 Resolved

Recent enforcement actions

  • State action · SOX Aug 2025
  • State action · SIA Jul 2025
  • State action · SIE Jul 2025
  • State action · SIF May 2025
  • State action · SOX Nov 2024
  • State action · SIA Oct 2024
  • State action · SIE Oct 2024
  • State action · SOX Apr 2024

This profile is built from EPA public records for system IL1670550 — 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.