MOUNT VERNON

MOUNT VERNON, IL · ~15,793 people served

Check your exact address → MOUNT VERNON overview

100

Excellent

PurityRadar safety score

PWSID

IL0810300

State

Illinois

City

MOUNT VERNON

Population served

15,793

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

Latest detections from EPA’s UCMR5 monitoring (through Jun 2024). Levels in parts per trillion (ppt).

PFBA

9.9 ppt

limit —

No federal limit

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Dec 2024. Official EPA record →

Other · EPA contaminant 7000 began Jul 2024 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Oct 2023 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Apr 2023 Resolved

Monitoring & reporting · Lead & Copper Rule began Dec 2020 Resolved

Other · EPA contaminant 7000 began Jul 2017 Resolved

Monitoring & reporting · Total coliform began Jul 2007 Resolved

Other · EPA contaminant 7000 began Jul 2005 Resolved

Other · EPA contaminant 7000 began Jul 2004 Resolved

Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began May 1990 Resolved

Recent enforcement actions

State action · SOX Dec 2024
State action · SIA Oct 2024
State action · SIF Jun 2024
State action · SIF Jun 2024
State action · SOX Mar 2024
State action · SIE Jan 2024
State action · SIA Jan 2024
State action · SOX Sep 2023

This profile is built from EPA public records for system IL0810300 — 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.