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Water system · PWSID IL0490350

EJ WATER-MONTROSE

DIETERICH, IL · ~201 people served

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

PWSID

IL0490350

State

Illinois

City

DIETERICH

Population served

201

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

12

Violations on record

0

Unaddressed

6

Health-based

46

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Nov 2020. Official EPA record →

Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jul 2020 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Apr 2020 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jan 2020 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Oct 2019 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jul 2014 Resolved
Monitoring & reporting · EPA contaminant 0999 began Oct 2010 Resolved
Monitoring & reporting · Total coliform began Oct 2010 Resolved
Monitoring & reporting · EPA contaminant 0999 began Oct 2009 Resolved
Monitoring & reporting · EPA contaminant 0999 began Jul 2007 Resolved
Other · EPA contaminant 7000 began Jul 2006 Resolved
Monitoring & reporting · Lead & Copper Rule began Jul 2000 Resolved
Treatment technique · Lead & Copper Rule health-based began Jan 1994 Resolved

Recent enforcement actions

  • State action · SOX Nov 2020
  • State action · SIF Sep 2020
  • State action · SIE Aug 2020
  • State action · SIA Aug 2020
  • State action · SIF Jun 2020
  • State action · SIA May 2020
  • State action · SIE May 2020
  • State action · SIF Mar 2020

This profile is built from EPA public records for system IL0490350 — 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.