PlainWater
States → Illinois

ABINGDON

PWS ID: IL0950050 · MONMOUTH, Illinois 61462

PFAS Detected

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

Population Served
3,275
Total Violations
109
Health-Based Violations
90
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
1,310
County
Knox
School/Daycare
No
MCL Violations
90
Monitoring Violations
5
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Combined Radium (-226 and -228) MCL 34 1992
Gross Alpha, Excl. Radon and U MCL 31 1989
Fluoride MCL 13 1985
Consumer Confidence Rule Other 12 2025
TTHM MCL 12 2019
Lead and Copper Rule MR 4 2017
Public Notice Other 2 2018
Gross Alpha, Excl. Radon and U MR 1 1977

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 9 of 60 samples detected PFAS.

Contaminant Date Result MRL Status
PFHxA 6/3/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 6/3/2024 <0.002 µg/L 0.002 µg/L Not Detected
8:2 FTS 6/3/2024 <0.005 µg/L 0.005 µg/L Not Detected
11Cl-PF3OUdS 6/3/2024 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 6/3/2024 <0.002 µg/L 0.002 µg/L Not Detected
HFPO-DA 6/3/2024 <0.005 µg/L 0.005 µg/L Not Detected
6:2 FTS 6/3/2024 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 6/3/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 6/3/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFPeA 6/3/2024 0.0090 µg/L 0.003 µg/L Detected
PFMBA 6/3/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 6/3/2024 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 6/3/2024 <0.02 µg/L 0.02 µg/L Not Detected
PFHpS 6/3/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 6/3/2024 <0.003 µg/L 0.003 µg/L Not Detected
ADONA 6/3/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 6/3/2024 <0.004 µg/L 0.004 µg/L Not Detected
NMeFOSAA 6/3/2024 <0.006 µg/L 0.006 µg/L Not Detected
PFBA 6/3/2024 0.0460 µg/L 0.005 µg/L Detected
PFTA 6/3/2024 <0.008 µg/L 0.008 µg/L Not Detected
PFTrDA 6/3/2024 <0.007 µg/L 0.007 µg/L Not Detected
PFDA 6/3/2024 <0.003 µg/L 0.003 µg/L Not Detected
NEtFOSAA 6/3/2024 <0.005 µg/L 0.005 µg/L Not Detected
lithium 6/3/2024 <9 µg/L 9 µg/L Not Detected
PFNA 6/3/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFOA 6/3/2024 0.0094 µg/L 0.004 µg/L Detected
PFOS 6/3/2024 0.0048 µg/L 0.004 µg/L Detected
PFBS 6/3/2024 0.0032 µg/L 0.003 µg/L Detected
PFHxS 6/3/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 6/3/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 12/3/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFMBA 12/3/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 12/3/2024 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 12/3/2024 <0.02 µg/L 0.02 µg/L Not Detected
PFHpS 12/3/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 12/3/2024 0.0100 µg/L 0.003 µg/L Detected
8:2 FTS 12/3/2024 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 12/3/2024 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 12/3/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 12/3/2024 0.0500 µg/L 0.005 µg/L Detected
HFPO-DA 12/3/2024 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 12/3/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 12/3/2024 <0.004 µg/L 0.004 µg/L Not Detected
11Cl-PF3OUdS 12/3/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFMPA 12/3/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFTA 12/3/2024 <0.008 µg/L 0.008 µg/L Not Detected
9Cl-PF3ONS 12/3/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFHxA 12/3/2024 <0.003 µg/L 0.003 µg/L Not Detected
NMeFOSAA 12/3/2024 <0.006 µg/L 0.006 µg/L Not Detected
PFTrDA 12/3/2024 <0.007 µg/L 0.007 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.