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Water system · PWSID MN1820020

Oak Park Heights

96
Excellent
PurityRadar safety score

PWSID

MN1820020

State

Minnesota

City

Oak Park Heights

Population served

4,776

Primary source

Groundwater

Score history

▼ 4 points — the score moved from 100 to 96 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 96

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 Nov 2023). Levels in parts per trillion (ppt).

PFHxS

Perfluorohexanesulfonic acid

7.4 ppt

limit 10 ppt

Near EPA limit

PFBA

130 ppt

limit —

No federal limit

PFBS

4.8 ppt

limit —

No federal limit

PFHxA

4.4 ppt

limit —

No federal limit

PFPeA

4.3 ppt

limit —

No federal limit

Violations & enforcement

1

Violations on record

0

Unaddressed

1

Health-based

7

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Nov 2014. Official EPA record →

Max contaminant level (MCL) · Total coliform health-based began Aug 2014 Resolved

Recent enforcement actions

  • State action · SOX Nov 2014
  • State action · SFJ Sep 2014
  • State action · SIB Sep 2014
  • State action · SIC Sep 2014
  • State action · SIE Sep 2014
  • State action · SIA Jul 1990
  • State action · SIE Jul 1990

This profile is built from EPA public records for system MN1820020 — 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.