STILLMAN VALLEY

STILLMAN VALLEY, IL · ~1,200 people served

Check your exact address → STILLMAN VALLEY overview

100

Excellent

PurityRadar safety score

PWSID

IL1410550

State

Illinois

City

STILLMAN VALLEY

Population served

1,200

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 Jun 2000. Official EPA record →

Monitoring & reporting · Gross alpha began Jan 2000 Resolved

Monitoring & reporting · Uranium began Jan 2000 Resolved

Monitoring & reporting · Gross alpha began Oct 1999 Resolved

Monitoring & reporting · Uranium began Oct 1999 Resolved

Recent enforcement actions

State action · SOX Jun 2000
State action · SIE Sep 1984
State action · SIE Sep 1984
State action · SIA Sep 1984
State action · SIA Sep 1984
State action · SIE Sep 1983
State action · SIA Sep 1983
State action · SIE Sep 1983

This profile is built from EPA public records for system IL1410550 — 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.