Water system · PWSID MN1820020
Oak Park Heights
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.
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
PFBA
130 ppt
limit —
PFBS
4.8 ppt
limit —
PFHxA
4.4 ppt
limit —
PFPeA
4.3 ppt
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 →
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.