PlainWater
States → South Dakota

BROOKINGS-DEUEL RURAL WATER SYSTEM

PWS ID: SD4600430 · TORONTO, South Dakota 57268

PFAS Detected

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

Population Served
6,200
Total Violations
9
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
2,846
County
Brookings
School/Daycare
No
MCL Violations
0
Monitoring Violations
7
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 5 2002
Consumer Confidence Rule Other 2 2004
Combined Radium (-226 and -228) MR 1 1976
Gross Alpha, Excl. Radon and U MR 1 1976

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 4 of 120 samples detected PFAS.

Contaminant Date Result MRL Status
11Cl-PF3OUdS 8/1/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFOS 8/1/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFUnA 8/1/2023 <0.002 µg/L 0.002 µg/L Not Detected
PFHxA 8/1/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 8/1/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 8/1/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 8/1/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFNA 8/1/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFHxS 8/1/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 8/1/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 8/1/2023 <0.003 µg/L 0.003 µg/L Not Detected
NEtFOSAA 8/1/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFTA 8/1/2023 <0.008 µg/L 0.008 µg/L Not Detected
ADONA 8/1/2023 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 8/1/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 8/1/2023 <0.007 µg/L 0.007 µg/L Not Detected
NFDHA 8/1/2023 <0.02 µg/L 0.02 µg/L Not Detected
9Cl-PF3ONS 8/1/2023 <0.002 µg/L 0.002 µg/L Not Detected
NMeFOSAA 8/1/2023 <0.006 µg/L 0.006 µg/L Not Detected
PFPeS 8/1/2023 <0.004 µg/L 0.004 µg/L Not Detected
lithium 8/1/2023 25.4000 µg/L 9 µg/L Detected
PFEESA 8/1/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 8/1/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 8/1/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 8/1/2023 <0.004 µg/L 0.004 µg/L Not Detected
8:2 FTS 8/1/2023 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 8/1/2023 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 8/1/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 8/1/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFHpS 8/1/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 8/1/2023 <0.003 µg/L 0.003 µg/L Not Detected
lithium 8/1/2023 14.2000 µg/L 9 µg/L Detected
PFBA 8/1/2023 <0.005 µg/L 0.005 µg/L Not Detected
11Cl-PF3OUdS 8/1/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFUnA 8/1/2023 <0.002 µg/L 0.002 µg/L Not Detected
PFBS 8/1/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHpS 8/1/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 8/1/2023 <0.004 µg/L 0.004 µg/L Not Detected
NFDHA 8/1/2023 <0.02 µg/L 0.02 µg/L Not Detected
PFEESA 8/1/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 8/1/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 8/1/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 8/1/2023 <0.004 µg/L 0.004 µg/L Not Detected
8:2 FTS 8/1/2023 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 8/1/2023 <0.002 µg/L 0.002 µg/L Not Detected
6:2 FTS 8/1/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFNA 8/1/2023 <0.004 µg/L 0.004 µg/L Not Detected
HFPO-DA 8/1/2023 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 8/1/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 8/1/2023 <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.