MOUNT STERLING

MT. STERLING, IL · ~3,271 people served

Check your exact address → MT. STERLING overview

100

Excellent

PurityRadar safety score

PWSID

IL0090100

State

Illinois

City

MT. STERLING

Population served

3,271

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

Violations on record

Unaddressed

Health-based

Enforcement actions

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

Monitoring & reporting · EPA contaminant 0999 began Oct 2025 Resolved

Monitoring · Lead & Copper Rule began Oct 2025 Resolved

Other · EPA contaminant 7000 began Jul 2013 Resolved

Monitoring & reporting · Lead & Copper Rule began Jan 2010 Resolved

Other · EPA contaminant 7000 began Oct 2009 Resolved

Other · EPA contaminant 7000 began Jul 2007 Resolved

Monitoring & reporting · Total coliform began Jun 2005 Resolved

Max contaminant level (MCL) · Total coliform health-based began Jun 2005 Resolved

Recent enforcement actions

State action · SIE Dec 2025
State action · SIA Dec 2025
State action · SIE Dec 2025
State action · SIA Dec 2025
State action · SOX Nov 2025
State action · SOX Oct 2013
State action · SIA Aug 2013
State action · SOX Jan 2010

This profile is built from EPA public records for system IL0090100 — 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.