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States → South Dakota

VERMILLION

PWS ID: SD4600342 · VERMILLION, South Dakota 57069

PFAS Detected

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

Population Served
11,695
Total Violations
3
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
3,204
County
Clay
School/Daycare
No
MCL Violations
0
Monitoring Violations
2
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Gross Alpha, Excl. Radon and U MR 1 1976
Combined Radium (-226 and -228) MR 1 1976

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 2 of 60 samples detected PFAS.

Contaminant Date Result MRL Status
4:2 FTS 5/6/2025 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 5/6/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFMPA 5/6/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFMBA 5/6/2025 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 5/6/2025 <0.005 µg/L 0.005 µg/L Not Detected
NEtFOSAA 5/6/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFPeA 5/6/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFTrDA 5/6/2025 <0.007 µg/L 0.007 µg/L Not Detected
PFTA 5/6/2025 <0.008 µg/L 0.008 µg/L Not Detected
lithium 5/6/2025 440.0000 µg/L 9 µg/L Detected
NFDHA 5/6/2025 <0.02 µg/L 0.02 µg/L Not Detected
PFHpS 5/6/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 5/6/2025 <0.004 µg/L 0.004 µg/L Not Detected
NMeFOSAA 5/6/2025 <0.006 µg/L 0.006 µg/L Not Detected
PFOS 5/6/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFBS 5/6/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 5/6/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 5/6/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 5/6/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFBA 5/6/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFOA 5/6/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFDA 5/6/2025 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 5/6/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFDoA 5/6/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 5/6/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 5/6/2025 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 5/6/2025 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 5/6/2025 <0.002 µg/L 0.002 µg/L Not Detected
ADONA 5/6/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 5/6/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHpS 11/13/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFTrDA 11/13/2024 <0.007 µg/L 0.007 µg/L Not Detected
11Cl-PF3OUdS 11/13/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFUnA 11/13/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFHxA 11/13/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 11/13/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFTA 11/13/2024 <0.008 µg/L 0.008 µg/L Not Detected
PFOA 11/13/2024 <0.004 µg/L 0.004 µg/L Not Detected
9Cl-PF3ONS 11/13/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFNA 11/13/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHxS 11/13/2024 <0.003 µg/L 0.003 µg/L Not Detected
NEtFOSAA 11/13/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFBS 11/13/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 11/13/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 11/13/2024 <0.004 µg/L 0.004 µg/L Not Detected
NFDHA 11/13/2024 <0.02 µg/L 0.02 µg/L Not Detected
PFEESA 11/13/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 11/13/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 11/13/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 11/13/2024 <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.