CheckPFAS

ZIP Code 55082

High Risk
High Risk PFAS Risk Level

PFAS above EPA limits detected

2 compounds exceed EPA Maximum Contaminant Levels in water serving this ZIP code. Standard pitcher filters like Brita do not remove PFAS. See filter recommendations below.

11
PFAS Detected
2
Above EPA Limits
2
Water Systems
203%
Highest % of MCL

Compounds Exceeding EPA Limits

PFOS Exceeds EPA limit
0 ppt MCL: 4 ppt 203% of limit
Detected: 8.10 ppt
PFOA Exceeds EPA limit
0 ppt MCL: 4 ppt 130% of limit
Detected: 5.20 ppt

Oak Park Heights

MN1820020 Moderate
Water Type
Groundwater
PFAS Detected
5
Above MCL
0
State
Minnesota
Data Period
2023–2025

PFAS Test Results

CompoundDetectedvs. EPA LimitEPA LimitStatus
PFHxS
Perfluorohexane sulfonic acid
7.40ppt
74% of limit
10 pptBelow limit
PFBA
Perfluorobutanoic acid
130.00pptNo federal limitUnregulated
PFPeA
Perfluoropentanoic acid
4.80pptNo federal limitUnregulated
PFBS
Perfluorobutane sulfonic acid
4.80pptNo federal limitUnregulated
PFHxA
Perfluorohexanoic acid
4.40pptNo federal limitUnregulated

Stillwater

MN1820024 High Risk
Water Type
Groundwater
PFAS Detected
6
Above MCL
2
State
Minnesota
Data Period
2023–2025

PFAS Test Results

CompoundDetectedvs. EPA LimitEPA LimitStatus
PFOS
Perfluorooctane sulfonic acid
8.10ppt
203% of limit
4 ppt⚠ Exceeds MCL
PFOA
Perfluorooctanoic acid
5.20ppt
130% of limit
4 ppt⚠ Exceeds MCL
PFHxS
Perfluorohexane sulfonic acid
7.20ppt
72% of limit
10 pptBelow limit
lithium
10900.00pptNo federal limitUnregulated
PFBA
Perfluorobutanoic acid
118.00pptNo federal limitUnregulated
PFPeA
Perfluoropentanoic acid
4.50pptNo federal limitUnregulated
Note: ZIP code 55082 is served by 2 separate water utilities. Results above show data for each system independently.

Data source: EPA Unregulated Contaminant Monitoring Rule, 5th cycle (UCMR 5) — January 2026 release.

UCMR 5 tested ~10,000 public water systems serving more than 25 people between 2023-2025 for 29 PFAS compounds.

Detection values represent the highest single-sample result measured at entry points to the distribution system.

View raw EPA data →