ONEIDA

ONEIDA, IL · ~644 people served

Check your exact address → ONEIDA overview

100

Excellent

PurityRadar safety score

PWSID

IL0950400

State

Illinois

City

ONEIDA

Population served

644

Primary source

Groundwater

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 Jul 2024. Official EPA record →

Other · EPA contaminant 7000 began Jul 2023 Resolved

Monitoring & reporting · Total coliform began Jun 2014 Resolved

Monitoring & reporting · EPA contaminant 0999 began Apr 2014 Resolved

Other · EPA contaminant 7000 began Jul 2009 Resolved

Monitoring & reporting · Fluoride began Jan 1999 Resolved

Max contaminant level (MCL) · Uranium health-based began Nov 1986 Resolved

Max contaminant level (MCL) · Fluoride health-based began May 1985 Resolved

Recent enforcement actions

State action · SOX Jul 2024
State action · SIA Dec 2023
State action · SIF Jul 2015
State action · SIF Jul 2015
State action · SOX Aug 2014
State action · SIE Jul 2014
State action · SIA Jul 2014
State action · SIE Jul 2014

This profile is built from EPA public records for system IL0950400 — 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.