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States → Ohio

HAMILTON PUBLIC WATER SYSTEM

PWS ID: OH0904012 · FAIRFIELD, Ohio 45014

PFAS Detected

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

Population Served
62,447
Total Violations
63
Health-Based Violations
39
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
24,433
County
Butler
School/Daycare
No
MCL Violations
39
Monitoring Violations
14
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 39 1997
Chlorite MR 10 2025
Consumer Confidence Rule Other 4 2019
Gross Alpha, Excl. Radon and U MR 3 2002
Lead and Copper Rule MR 1 1993

PFAS Testing Results (UCMR5)

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

Contaminant Date Result MRL Status
PFHxS 5/8/2024 <0.003 µg/L 0.003 µg/L Not Detected
ADONA 5/8/2024 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 5/8/2024 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 5/8/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFHxA 5/8/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 5/8/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 5/8/2024 <0.004 µg/L 0.004 µg/L Not Detected
lithium 5/8/2024 <9 µg/L 9 µg/L Not Detected
PFNA 5/8/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHpA 5/8/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 5/8/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 5/8/2024 <0.002 µg/L 0.002 µg/L Not Detected
HFPO-DA 5/8/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFOS 5/8/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFTrDA 5/8/2024 <0.007 µg/L 0.007 µg/L Not Detected
PFDoA 5/8/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 5/8/2024 <0.004 µg/L 0.004 µg/L Not Detected
NEtFOSAA 5/8/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFTA 5/8/2024 <0.008 µg/L 0.008 µg/L Not Detected
NMeFOSAA 5/8/2024 <0.006 µg/L 0.006 µg/L Not Detected
8:2 FTS 5/8/2024 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 5/8/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFBA 5/8/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFHpS 5/8/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 5/8/2024 <0.004 µg/L 0.004 µg/L Not Detected
NFDHA 5/8/2024 <0.02 µg/L 0.02 µg/L Not Detected
PFEESA 5/8/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 5/8/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 5/8/2024 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 5/8/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFPeA 5/8/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 5/8/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 5/8/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 5/8/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 5/8/2024 0.0030 µg/L 0.003 µg/L Detected
PFPeS 5/8/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFDoA 5/8/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 5/8/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFOS 5/8/2024 <0.004 µg/L 0.004 µg/L Not Detected
NMeFOSAA 5/8/2024 <0.006 µg/L 0.006 µg/L Not Detected
NEtFOSAA 5/8/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 5/8/2024 <0.007 µg/L 0.007 µg/L Not Detected
PFTA 5/8/2024 <0.008 µg/L 0.008 µg/L Not Detected
lithium 5/8/2024 <9 µg/L 9 µg/L Not Detected
PFHxA 5/8/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 5/8/2024 <0.004 µg/L 0.004 µg/L Not Detected
NFDHA 5/8/2024 <0.02 µg/L 0.02 µg/L Not Detected
PFHpS 5/8/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 5/8/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 5/8/2024 <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.