PlainWater

TM RURAL WATER DISTRICT

PWS ID: SD4600999 · PARKER, South Dakota 57053

PFAS Detected

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

Population Served
4,250
Total Violations
6
Health-Based Violations
0
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
1,700
County
McCook
School/Daycare
No
MCL Violations
0
Monitoring Violations
4
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Consumer Confidence Rule Other 2 2003
Lead and Copper Rule MR 2 1998
Coliform (TCR) MR 2 2001

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 8 of 240 samples detected PFAS.

Contaminant Date Result MRL Status
PFBA 9/23/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFHxS 9/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 9/23/2024 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 9/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 9/23/2024 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 9/23/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFUnA 9/23/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFHxA 9/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 9/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 9/23/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFNA 9/23/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFDoA 9/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 9/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 9/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
NMeFOSAA 9/23/2024 <0.006 µg/L 0.006 µg/L Not Detected
NEtFOSAA 9/23/2024 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 9/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFTrDA 9/23/2024 <0.007 µg/L 0.007 µg/L Not Detected
PFTA 9/23/2024 <0.008 µg/L 0.008 µg/L Not Detected
PFOS 9/23/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHpS 9/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 9/23/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFOA 9/23/2024 <0.004 µg/L 0.004 µg/L Not Detected
lithium 9/23/2024 69.0000 µg/L 9 µg/L Detected
PFPeS 9/23/2024 <0.004 µg/L 0.004 µg/L Not Detected
NFDHA 9/23/2024 <0.02 µg/L 0.02 µg/L Not Detected
PFEESA 9/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 9/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 9/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 9/23/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHpA 6/11/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFOS 6/11/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFUnA 6/11/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFHxA 6/11/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 6/11/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 6/11/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 6/11/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFTrDA 6/11/2024 <0.007 µg/L 0.007 µg/L Not Detected
ADONA 6/11/2024 <0.003 µg/L 0.003 µg/L Not Detected
NEtFOSAA 6/11/2024 <0.005 µg/L 0.005 µg/L Not Detected
NMeFOSAA 6/11/2024 <0.006 µg/L 0.006 µg/L Not Detected
lithium 6/11/2024 76.0000 µg/L 9 µg/L Detected
PFHxS 6/11/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 6/11/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFTA 6/11/2024 <0.008 µg/L 0.008 µg/L Not Detected
PFMPA 6/11/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFOA 6/11/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFPeS 6/11/2024 <0.004 µg/L 0.004 µg/L Not Detected
NFDHA 6/11/2024 <0.02 µg/L 0.02 µg/L Not Detected
PFEESA 6/11/2024 <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.