EUREKA

EUREKA, IL · ~5,216 people served

Check your exact address → EUREKA overview

100

Excellent

PurityRadar safety score

PWSID

IL2030200

State

Illinois

City

EUREKA

Population served

5,216

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 Aug 2025. Official EPA record →

Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2024 Resolved

Treatment technique · Lead & Copper Rule health-based began Dec 1992 Resolved

Max contaminant level (MCL) · Nitrate health-based began Jun 1990 Resolved

Recent enforcement actions

State action · SOX Aug 2025
State action · SIF May 2025
State action · SIE Oct 2024
State action · SIA Oct 2024
EPA/federal action · EFJ Aug 1994
State action · SOX Jan 1994
State action · SOX Jan 1994
State action · SIF Jan 1993

This profile is built from EPA public records for system IL2030200 — 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.