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Water system · PWSID IL0950050

ABINGDON

MONMOUTH, IL · ~3,275 people served

Check your exact address → MONMOUTH overview
54
Fair
PurityRadar safety score

PWSID

IL0950050

State

Illinois

City

MONMOUTH

Population served

3,275

Primary source

GWP

Score history

▼ 46 points — the score moved from 100 to 54 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 54

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 Dec 2024). Levels in parts per trillion (ppt).

PFOA

Perfluorooctanoic acid

9.1 ppt

limit 4 ppt

Above EPA limit · 2.3×

PFOS

Perfluorooctanesulfonic acid

4.8 ppt

limit 4 ppt

Above EPA limit · 1.2×

PFBA

50 ppt

limit —

No federal limit

PFPeA

10 ppt

limit —

No federal limit

PFBS

3.5 ppt

limit —

No federal limit

Violations & enforcement

15

Violations on record

0

Unaddressed

9

Health-based

75

Enforcement actions

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

Other · EPA contaminant 7000 began Jul 2025 Resolved
Other · EPA contaminant 7000 began Jul 2022 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jan 2019 Resolved
Other · EPA contaminant 7500 began Dec 2018 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Oct 2018 Resolved
Monitoring & reporting · Lead & Copper Rule began Oct 2017 Resolved
Other · EPA contaminant 7000 began Jul 2013 Resolved
Other · EPA contaminant 7000 began Jul 2005 Resolved
Max contaminant level (MCL) · Uranium health-based began Jun 1992 Resolved
Max contaminant level (MCL) · Uranium health-based began Oct 1989 Resolved
Max contaminant level (MCL) · Gross alpha health-based began Feb 1989 Resolved
Max contaminant level (MCL) · Uranium health-based began Oct 1985 Resolved

Recent enforcement actions

  • State action · SOX Nov 2025
  • State action · SIA Sep 2025
  • State action · SOX Mar 2023
  • State action · SFK Feb 2023
  • State action · SFL Feb 2023
  • State action · SFJ Dec 2022
  • State action · SIA Jul 2022
  • State action · SOX May 2019

This profile is built from EPA public records for system IL0950050 — 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.