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OTTAWA COUNTY REGIONAL WATER DISTRICT

PWS ID: OH6205011 · PORT CLINTON, Ohio 43452

PFAS Detected

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

Population Served
20,428
Total Violations
10
Health-Based Violations
4
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
8,372
County
Ottawa
School/Daycare
No
MCL Violations
0
Monitoring Violations
0
Treatment Tech Violations
4

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Consumer Confidence Rule Other 6 2020
Surface Water Treatment Rule TT 4 2005

PFAS Testing Results (UCMR5)

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

Contaminant Date Result MRL Status
11Cl-PF3OUdS 8/7/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFHpS 8/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 8/7/2023 <0.004 µg/L 0.004 µg/L Not Detected
NFDHA 8/7/2023 <0.02 µg/L 0.02 µg/L Not Detected
PFEESA 8/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 8/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 8/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 8/7/2023 <0.004 µg/L 0.004 µg/L Not Detected
8:2 FTS 8/7/2023 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 8/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 8/7/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 8/7/2023 <0.005 µg/L 0.005 µg/L Not Detected
HFPO-DA 8/7/2023 <0.005 µg/L 0.005 µg/L Not Detected
lithium 8/7/2023 <9 µg/L 9 µg/L Not Detected
9Cl-PF3ONS 8/7/2023 <0.002 µg/L 0.002 µg/L Not Detected
NEtFOSAA 8/7/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFUnA 8/7/2023 <0.002 µg/L 0.002 µg/L Not Detected
PFHxA 8/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 8/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 8/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 8/7/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 8/7/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFNA 8/7/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFHxS 8/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 8/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 8/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFTA 8/7/2023 <0.008 µg/L 0.008 µg/L Not Detected
PFTrDA 8/7/2023 <0.007 µg/L 0.007 µg/L Not Detected
NMeFOSAA 8/7/2023 <0.006 µg/L 0.006 µg/L Not Detected
ADONA 8/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFBA 5/3/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFHpA 5/3/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 5/3/2023 <0.003 µg/L 0.003 µg/L Not Detected
lithium 5/3/2023 <9 µg/L 9 µg/L Not Detected
PFNA 5/3/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 5/3/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFOA 5/3/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFDA 5/3/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 5/3/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 5/3/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 5/3/2023 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 5/3/2023 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 5/3/2023 <0.002 µg/L 0.002 µg/L Not Detected
NMeFOSAA 5/3/2023 <0.006 µg/L 0.006 µg/L Not Detected
HFPO-DA 5/3/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFBS 5/3/2023 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 5/3/2023 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 5/3/2023 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 5/3/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFMPA 5/3/2023 <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.