Big Lake

Big Lake, MN · ~12,413 people served

Check your exact address → Big Lake overview

100

Excellent

PurityRadar safety score

PWSID

MN1710002

State

Minnesota

City

Big Lake

Population served

12,413

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

Latest detections from EPA’s UCMR5 monitoring (through Aug 2024). Levels in parts per trillion (ppt).

PFBA

15 ppt

limit —

No federal limit

PFPeA

3.3 ppt

limit —

No federal limit

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Aug 2009. Official EPA record →

Monitoring & reporting · Total coliform began Mar 2009 Resolved

Monitoring & reporting · EPA contaminant 0999 began Jan 2009 Resolved

Max contaminant level (MCL) · Total coliform health-based began Oct 1998 Resolved

Recent enforcement actions

State action · SIA Aug 2009
State action · SIF Jun 2009
State action · SFJ May 2009
State action · SIE May 2009
State action · SFJ May 2009
State action · SIE May 2009
State action · SOX Apr 2009
State action · SOX Oct 1998

This profile is built from EPA public records for system MN1710002 — 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.