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Water system · PWSID IL1194760

PIERRON

PIERRON, IL · ~1,709 people served

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

PWSID

IL1194760

State

Illinois

City

PIERRON

Population served

1,709

Primary source

SWP

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

10

Violations on record

0

Unaddressed

10

Health-based

48

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Dec 2021. Official EPA record →

Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Jul 2021 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Apr 2021 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jul 2014 Resolved
Treatment technique · EPA contaminant 0800 health-based began Jun 2014 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Apr 2014 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Jan 2014 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jan 2014 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Oct 2013 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Oct 2013 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Jan 2013 Resolved

Recent enforcement actions

  • State action · SOX Dec 2021
  • State action · SIF Oct 2021
  • State action · SIE Sep 2021
  • State action · SIA Sep 2021
  • State action · SFK Aug 2021
  • State action · SFJ May 2021
  • State action · SIF May 2021
  • State action · SIE Apr 2021

This profile is built from EPA public records for system IL1194760 — 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.