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States → Minnesota

South Saint Paul

PWS ID: MN1190020 · South St. Paul, Minnesota 55075

PFAS Detected

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

Population Served
20,664
Total Violations
50
Health-Based Violations
32
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
6,841
County
Dakota
School/Daycare
No
MCL Violations
32
Monitoring Violations
9
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Gross Alpha, Excl. Radon and U MCL 17 2020
Coliform (TCR) MR 9 1994
Combined Radium (-226 and -228) MCL 8 2020
Revised Total Coliform Rule MCL 7 2018

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 14 of 300 samples detected PFAS.

Contaminant Date Result MRL Status
PFDA 7/31/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFBA 7/31/2024 0.0057 µg/L 0.005 µg/L Detected
HFPO-DA 7/31/2024 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 7/31/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFBS 7/31/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 7/31/2024 <0.002 µg/L 0.002 µg/L Not Detected
6:2 FTS 7/31/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFDoA 7/31/2024 <0.003 µg/L 0.003 µg/L Not Detected
ADONA 7/31/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 7/31/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 7/31/2024 <0.004 µg/L 0.004 µg/L Not Detected
8:2 FTS 7/31/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFNA 7/31/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHxS 7/31/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 7/31/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 7/31/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFTrDA 7/31/2024 <0.007 µg/L 0.007 µg/L Not Detected
PFEESA 7/31/2024 <0.003 µg/L 0.003 µg/L Not Detected
11Cl-PF3OUdS 7/31/2024 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 7/31/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 7/31/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFTA 7/31/2024 <0.008 µg/L 0.008 µg/L Not Detected
NFDHA 7/31/2024 <0.02 µg/L 0.02 µg/L Not Detected
NEtFOSAA 7/31/2024 <0.005 µg/L 0.005 µg/L Not Detected
NMeFOSAA 7/31/2024 <0.006 µg/L 0.006 µg/L Not Detected
PFMBA 7/31/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 7/31/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 7/31/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHpS 7/31/2024 <0.003 µg/L 0.003 µg/L Not Detected
ADONA 7/31/2024 <0.003 µg/L 0.003 µg/L Not Detected
NEtFOSAA 7/31/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 7/31/2024 <0.007 µg/L 0.007 µg/L Not Detected
PFTA 7/31/2024 <0.008 µg/L 0.008 µg/L Not Detected
PFHpS 7/31/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 7/31/2024 <0.004 µg/L 0.004 µg/L Not Detected
NFDHA 7/31/2024 <0.02 µg/L 0.02 µg/L Not Detected
PFEESA 7/31/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 7/31/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 7/31/2024 <0.004 µg/L 0.004 µg/L Not Detected
4:2 FTS 7/31/2024 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 7/31/2024 <0.005 µg/L 0.005 µg/L Not Detected
NMeFOSAA 7/31/2024 <0.006 µg/L 0.006 µg/L Not Detected
HFPO-DA 7/31/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFPeA 7/31/2024 0.0110 µg/L 0.003 µg/L Detected
9Cl-PF3ONS 7/31/2024 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 7/31/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFUnA 7/31/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFHxA 7/31/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 7/31/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 7/31/2024 <0.003 µg/L 0.003 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.