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NILES CITY PWS

PWS ID: OH7802403 · NILES, Ohio 44446

PFAS Detected

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

Population Served
21,961
Total Violations
11
Health-Based Violations
3
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
9,710
County
Trumbull
School/Daycare
No
MCL Violations
3
Monitoring Violations
0
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Consumer Confidence Rule Other 7 2021
TTHM MCL 3 2004

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 5 of 95 samples detected PFAS.

Contaminant Date Result MRL Status
NMeFOSAA 7/8/2024 <0.006 µg/L 0.006 µg/L Not Detected
lithium 7/8/2024 <9 µg/L 9 µg/L Not Detected
PFTA 7/8/2024 <0.008 µg/L 0.008 µg/L Not Detected
PFTrDA 7/8/2024 <0.007 µg/L 0.007 µg/L Not Detected
NEtFOSAA 7/8/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 7/31/2024 0.0059 µg/L 0.005 µg/L Detected
PFPeS 7/31/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHpS 7/31/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 7/31/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 7/31/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 7/31/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFNA 7/31/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFPeA 7/31/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFOS 7/31/2024 0.0059 µg/L 0.004 µg/L Detected
PFHxS 7/31/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 7/31/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 7/31/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 7/31/2024 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 7/31/2024 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 7/31/2024 <0.002 µg/L 0.002 µg/L Not Detected
ADONA 7/31/2024 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 7/31/2024 <0.005 µg/L 0.005 µg/L Not Detected
6:2 FTS 7/31/2024 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 7/31/2024 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 7/31/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFDA 7/31/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 7/31/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 7/31/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFMBA 7/31/2024 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 7/31/2024 <0.02 µg/L 0.02 µg/L Not Detected
PFHpS 5/1/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFBA 5/1/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFOS 5/1/2025 0.0046 µg/L 0.004 µg/L Detected
NFDHA 5/1/2025 <0.02 µg/L 0.02 µg/L Not Detected
PFTA 5/1/2025 <0.008 µg/L 0.008 µg/L Not Detected
PFTrDA 5/1/2025 <0.007 µg/L 0.007 µg/L Not Detected
NEtFOSAA 5/1/2025 <0.005 µg/L 0.005 µg/L Not Detected
NMeFOSAA 5/1/2025 <0.006 µg/L 0.006 µg/L Not Detected
ADONA 5/1/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 5/1/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 5/1/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 5/1/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 5/1/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 5/1/2025 <0.003 µg/L 0.003 µg/L Not Detected
4:2 FTS 5/1/2025 <0.003 µg/L 0.003 µg/L Not Detected
lithium 5/1/2025 <9 µg/L 9 µg/L Not Detected
PFMPA 5/1/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFPeS 5/1/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFNA 5/1/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFOA 5/1/2025 <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.