Cook

Cook, MN · ~574 people served

Check your exact address → Cook overview

100

Excellent

PurityRadar safety score

PWSID

MN1690009

State

Minnesota

City

Cook

Population served

574

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 Sep 2015. Official EPA record →

Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2014 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2014 Resolved

Monitoring & reporting · Lead & Copper Rule began Jan 2007 Resolved

Max contaminant level (MCL) · Total coliform health-based began Apr 2003 Resolved

Recent enforcement actions

State action · SOX Sep 2015
State action · SIF Jul 2015
State action · SFJ Nov 2014
State action · SIE Nov 2014
State action · SIA Oct 2014
State action · SIA Oct 2014
State action · SOX Dec 2007
State action · SIF Oct 2007

This profile is built from EPA public records for system MN1690009 — 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.