PlainWater
States → Ohio

OBERLIN WATER DEPARTMENT

PWS ID: OH4700911 · LAGRANGE, Ohio 44050-9434

PFAS Detected

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

Population Served
8,600
Total Violations
32
Health-Based Violations
23
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
2,593
County
Lorain
School/Daycare
No
MCL Violations
12
Monitoring Violations
8
Treatment Tech Violations
11

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
TTHM MCL 12 2017
Surface Water Treatment Rule TT 7 2005
Interim Enhanced Surface Water Treatment Rule TT 4 2024
Fluoride MR 4 1996
Arsenic MR 4 1996
Consumer Confidence Rule Other 1 2018

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 13 of 120 samples detected PFAS.

Contaminant Date Result MRL Status
PFTrDA 8/21/2023 <0.007 µg/L 0.007 µg/L Not Detected
lithium 8/21/2023 <9 µg/L 9 µg/L Not Detected
PFHpS 8/21/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 8/21/2023 <0.004 µg/L 0.004 µg/L Not Detected
NFDHA 8/21/2023 <0.02 µg/L 0.02 µg/L Not Detected
PFEESA 8/21/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 8/21/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 8/21/2023 <0.004 µg/L 0.004 µg/L Not Detected
11Cl-PF3OUdS 8/21/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFUnA 8/21/2023 <0.002 µg/L 0.002 µg/L Not Detected
PFDoA 8/21/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 8/21/2023 <0.003 µg/L 0.003 µg/L Not Detected
NMeFOSAA 8/21/2023 <0.006 µg/L 0.006 µg/L Not Detected
PFOS 8/21/2023 <0.004 µg/L 0.004 µg/L Not Detected
NEtFOSAA 8/21/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFNA 8/21/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFHxS 8/21/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 8/21/2023 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 8/21/2023 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 8/21/2023 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 8/21/2023 <0.005 µg/L 0.005 µg/L Not Detected
HFPO-DA 8/21/2023 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 8/21/2023 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 8/21/2023 <0.002 µg/L 0.002 µg/L Not Detected
PFOA 8/21/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFTA 8/21/2023 <0.008 µg/L 0.008 µg/L Not Detected
9Cl-PF3ONS 5/8/2023 <0.002 µg/L 0.002 µg/L Not Detected
PFBA 5/8/2023 0.0082 µg/L 0.005 µg/L Detected
PFTA 5/8/2023 <0.008 µg/L 0.008 µg/L Not Detected
NMeFOSAA 5/8/2023 <0.006 µg/L 0.006 µg/L Not Detected
NEtFOSAA 5/8/2023 <0.005 µg/L 0.005 µg/L Not Detected
8:2 FTS 5/8/2023 <0.005 µg/L 0.005 µg/L Not Detected
lithium 5/8/2023 <9 µg/L 9 µg/L Not Detected
PFHpS 5/8/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 5/8/2023 <0.004 µg/L 0.004 µg/L Not Detected
NFDHA 5/8/2023 <0.02 µg/L 0.02 µg/L Not Detected
PFEESA 5/8/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 5/8/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 5/8/2023 0.0044 µg/L 0.003 µg/L Detected
PFUnA 5/8/2023 <0.002 µg/L 0.002 µg/L Not Detected
4:2 FTS 5/8/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 5/8/2023 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 5/8/2023 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 5/8/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFTrDA 5/8/2023 <0.007 µg/L 0.007 µg/L Not Detected
11Cl-PF3OUdS 5/8/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFHxA 5/8/2023 0.0042 µg/L 0.003 µg/L Detected
PFDoA 5/8/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 5/8/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 5/8/2023 <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.