PlainWater
States → Mississippi

OAK HILL WATER ASSN

PWS ID: MS0580004 · PONTOTOC, Mississippi 38863

PFAS Detected

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

Population Served
4,739
Total Violations
465
Health-Based Violations
7
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Public/Private
Connections
1,795
County
Pontotoc
School/Daycare
No
MCL Violations
7
Monitoring Violations
451
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Combined Uranium MR 145 2012
Gross Alpha, Excl. Radon and U MR 77 2008
Combined Radium (-226 and -228) MR 77 2008
Radium-226 MR 72 2012
Radium-228 MR 72 2012
Coliform (TCR) MCL 7 2015
Coliform (TCR) MR 4 2012
Chlorine MR 4 2012
Consumer Confidence Rule Other 1 2004
Public Notice Other 1 2008

PFAS Testing Results (UCMR5)

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

Contaminant Date Result MRL Status
PFHpA 6/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 6/17/2024 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 6/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 6/17/2024 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 6/17/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFUnA 6/17/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFHxA 6/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 6/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 6/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 6/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFBA 6/17/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFBS 6/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 6/17/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 6/17/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFMPA 6/17/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFTA 6/17/2024 <0.008 µg/L 0.008 µg/L Not Detected
PFTrDA 6/17/2024 <0.007 µg/L 0.007 µg/L Not Detected
NEtFOSAA 6/17/2024 <0.005 µg/L 0.005 µg/L Not Detected
NMeFOSAA 6/17/2024 <0.006 µg/L 0.006 µg/L Not Detected
lithium 6/17/2024 99.0000 µg/L 9 µg/L Detected
PFPeS 6/17/2024 <0.004 µg/L 0.004 µg/L Not Detected
NFDHA 6/17/2024 <0.02 µg/L 0.02 µg/L Not Detected
PFEESA 6/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpS 6/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 6/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 6/17/2024 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 6/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 6/17/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFNA 6/17/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFMBA 6/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
NMeFOSAA 6/17/2024 <0.006 µg/L 0.006 µg/L Not Detected
NEtFOSAA 6/17/2024 <0.005 µg/L 0.005 µg/L Not Detected
lithium 6/17/2024 84.0000 µg/L 9 µg/L Detected
PFTrDA 6/17/2024 <0.007 µg/L 0.007 µg/L Not Detected
PFBS 6/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpS 6/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 6/17/2024 <0.004 µg/L 0.004 µg/L Not Detected
NFDHA 6/17/2024 <0.02 µg/L 0.02 µg/L Not Detected
PFHpA 6/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 6/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 6/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 6/17/2024 <0.004 µg/L 0.004 µg/L Not Detected
8:2 FTS 6/17/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFTA 6/17/2024 <0.008 µg/L 0.008 µg/L Not Detected
PFEESA 6/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 6/17/2024 <0.002 µg/L 0.002 µg/L Not Detected
6:2 FTS 6/17/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 6/17/2024 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 6/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 6/17/2024 <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.