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States → Minnesota

Oak Park Heights

PWS ID: MN1820020 · Oak Park Heights, Minnesota 55082-6476

PFAS Detected

5 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.

Population Served
4,776
Total Violations
16
Health-Based Violations
5
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
1,307
County
Washington
School/Daycare
No
MCL Violations
5
Monitoring Violations
9
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 9 1995
Coliform (TCR) MCL 5 2014

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 15 of 120 samples detected PFAS.

Contaminant Date Result MRL Status
PFOS 5/16/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFHxA 5/16/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 5/16/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 5/16/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 5/16/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFBA 5/16/2023 0.1200 µg/L 0.005 µg/L Detected
HFPO-DA 5/16/2023 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 5/16/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 5/16/2023 0.0030 µg/L 0.003 µg/L Detected
11Cl-PF3OUdS 5/16/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFUnA 5/16/2023 <0.002 µg/L 0.002 µg/L Not Detected
PFNA 5/16/2023 <0.004 µg/L 0.004 µg/L Not Detected
NMeFOSAA 5/16/2023 <0.006 µg/L 0.006 µg/L Not Detected
9Cl-PF3ONS 5/16/2023 <0.002 µg/L 0.002 µg/L Not Detected
6:2 FTS 5/16/2023 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 5/16/2023 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 5/16/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFMPA 5/16/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFPeA 5/16/2023 0.0043 µg/L 0.003 µg/L Detected
PFMBA 5/16/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 5/16/2023 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 5/16/2023 <0.02 µg/L 0.02 µg/L Not Detected
PFPeS 5/16/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFHpS 5/16/2023 <0.003 µg/L 0.003 µg/L Not Detected
lithium 5/16/2023 <9 µg/L 9 µg/L Not Detected
PFHpA 5/16/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFTrDA 5/16/2023 <0.007 µg/L 0.007 µg/L Not Detected
NEtFOSAA 5/16/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFTA 5/16/2023 <0.008 µg/L 0.008 µg/L Not Detected
PFBS 5/16/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 5/16/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFTA 5/16/2023 <0.008 µg/L 0.008 µg/L Not Detected
NEtFOSAA 5/16/2023 <0.005 µg/L 0.005 µg/L Not Detected
NMeFOSAA 5/16/2023 <0.006 µg/L 0.006 µg/L Not Detected
PFDoA 5/16/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 5/16/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHpS 5/16/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFOS 5/16/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFHxS 5/16/2023 0.0060 µg/L 0.003 µg/L Detected
PFHpA 5/16/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 5/16/2023 0.0040 µg/L 0.003 µg/L Detected
PFUnA 5/16/2023 <0.002 µg/L 0.002 µg/L Not Detected
lithium 5/16/2023 <9 µg/L 9 µg/L Not Detected
PFOA 5/16/2023 <0.004 µg/L 0.004 µg/L Not Detected
HFPO-DA 5/16/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFHxA 5/16/2023 0.0037 µg/L 0.003 µg/L Detected
11Cl-PF3OUdS 5/16/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 5/16/2023 <0.007 µg/L 0.007 µg/L Not Detected
ADONA 5/16/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 5/16/2023 <0.004 µg/L 0.004 µg/L Not Detected
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. PFAS data from EPA UCMR5 monitoring program (2023-2025). This data is provided for informational purposes only.