PlainWater
States → South Dakota

MINNEHAHA COMMUNITY WATER CORP

PWS ID: SD4600432 · DELL RAPIDS, South Dakota 57022

PFAS Detected

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

Population Served
13,435
Total Violations
16
Health-Based Violations
3
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
5,374
County
Minnehaha
School/Daycare
No
MCL Violations
3
Monitoring Violations
9
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Chlorine MR 3 2018
Revised Total Coliform Rule MON 3 2018
Coliform (TCR) MCL 3 1994
Combined Radium (-226 and -228) MR 1 1976
Gross Alpha, Excl. Radon and U MR 1 1976
Nitrate MR 1 1995

PFAS Testing Results (UCMR5)

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

Contaminant Date Result MRL Status
PFHxA 9/24/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 9/24/2024 <0.004 µg/L 0.004 µg/L Not Detected
ADONA 9/24/2024 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 9/24/2024 <0.005 µg/L 0.005 µg/L Not Detected
6:2 FTS 9/24/2024 <0.005 µg/L 0.005 µg/L Not Detected
8:2 FTS 9/24/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFMPA 9/24/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFPeA 9/24/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 9/24/2024 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 9/24/2024 <0.002 µg/L 0.002 µg/L Not Detected
NFDHA 9/24/2024 <0.02 µg/L 0.02 µg/L Not Detected
PFBA 9/24/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFHpS 9/24/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFTA 9/24/2024 <0.008 µg/L 0.008 µg/L Not Detected
PFTrDA 9/24/2024 <0.007 µg/L 0.007 µg/L Not Detected
NEtFOSAA 9/24/2024 <0.005 µg/L 0.005 µg/L Not Detected
NMeFOSAA 9/24/2024 <0.006 µg/L 0.006 µg/L Not Detected
lithium 9/24/2024 36.7000 µg/L 9 µg/L Detected
11Cl-PF3OUdS 9/24/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFEESA 9/24/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 9/24/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 9/24/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 9/24/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 9/24/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 9/24/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 9/24/2024 <0.004 µg/L 0.004 µg/L Not Detected
4:2 FTS 9/24/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 9/24/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 9/24/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFOA 9/24/2024 <0.004 µg/L 0.004 µg/L Not Detected
ADONA 9/24/2024 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 9/24/2024 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 9/24/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFHpA 9/24/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 9/24/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFUnA 9/24/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFHxA 9/24/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 9/24/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 9/24/2024 <0.003 µg/L 0.003 µg/L Not Detected
11Cl-PF3OUdS 9/24/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFOS 9/24/2024 <0.004 µg/L 0.004 µg/L Not Detected
lithium 9/24/2024 36.7000 µg/L 9 µg/L Detected
PFHxS 9/24/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 9/24/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFTA 9/24/2024 <0.008 µg/L 0.008 µg/L Not Detected
PFBA 9/24/2024 <0.005 µg/L 0.005 µg/L Not Detected
HFPO-DA 9/24/2024 <0.005 µg/L 0.005 µg/L Not Detected
NMeFOSAA 9/24/2024 <0.006 µg/L 0.006 µg/L Not Detected
NEtFOSAA 9/24/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 9/24/2024 <0.007 µg/L 0.007 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.