COOKS MILLS WATER ASSOCIATION

MATTOON, IL · ~720 people served

Check your exact address → MATTOON overview

100

Excellent

PurityRadar safety score

PWSID

IL0295200

State

Illinois

City

MATTOON

Population served

720

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 →

Other · EPA contaminant 7000 began Jul 2025 Unaddressed

Monitoring & reporting · EPA contaminant 0999 began Jan 2008 Resolved

Monitoring & reporting · Lead & Copper Rule began Jul 2005 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2005 Resolved

Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2005 Resolved

Treatment technique · Lead & Copper Rule health-based began Mar 1994 Resolved

Monitoring & reporting · Lead & Copper Rule began Oct 1993 Resolved

Recent enforcement actions

State action · SIA Aug 2025
State action · SIA Apr 2008
State action · SOX Apr 2008
State action · SIF Sep 2006
State action · SOX Jul 2006
State action · SFK Oct 2005
State action · SFJ Sep 2005
State action · SIA Aug 2005

This profile is built from EPA public records for system IL0295200 — 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.