PlainWater
States → Illinois

CASEYVILLE

PWS ID: IL1630250 · CASEYVILLE, Illinois 62232

PFAS Detected

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

Population Served
13,798
Total Violations
58
Health-Based Violations
8
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
5,663
County
St. Clair
School/Daycare
No
MCL Violations
0
Monitoring Violations
32
Treatment Tech Violations
8

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 11 2010
Lead and Copper Rule MR 9 2023
Lead and Copper Rule TT 8 1994
Chlorine MR 8 2018
Consumer Confidence Rule Other 4 2017
Revised Total Coliform Rule MON 4 2018

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 7 of 120 samples detected PFAS.

Contaminant Date Result MRL Status
PFBA 7/10/2025 0.0098 µg/L 0.005 µg/L Detected
PFPeA 7/10/2025 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 7/10/2025 <0.005 µg/L 0.005 µg/L Not Detected
6:2 FTS 7/10/2025 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 7/10/2025 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 7/10/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFMPA 7/10/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFMBA 7/10/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 7/10/2025 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 7/10/2025 <0.02 µg/L 0.02 µg/L Not Detected
PFPeS 7/10/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFTA 7/10/2025 <0.008 µg/L 0.008 µg/L Not Detected
ADONA 7/10/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 7/10/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHpS 7/10/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFTrDA 7/10/2025 <0.007 µg/L 0.007 µg/L Not Detected
PFUnA 7/10/2025 <0.002 µg/L 0.002 µg/L Not Detected
9Cl-PF3ONS 7/10/2025 <0.002 µg/L 0.002 µg/L Not Detected
NEtFOSAA 7/10/2025 <0.005 µg/L 0.005 µg/L Not Detected
lithium 7/10/2025 10.1000 µg/L 9 µg/L Detected
PFBS 7/10/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 7/10/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 7/10/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFOS 7/10/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFOA 7/10/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFDA 7/10/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 7/10/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 7/10/2025 <0.004 µg/L 0.004 µg/L Not Detected
11Cl-PF3OUdS 7/10/2025 <0.005 µg/L 0.005 µg/L Not Detected
NMeFOSAA 7/10/2025 <0.006 µg/L 0.006 µg/L Not Detected
PFHxA 4/8/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 4/8/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 4/8/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 4/8/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFNA 4/8/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFHpA 4/8/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 4/8/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 4/8/2025 <0.002 µg/L 0.002 µg/L Not Detected
PFTrDA 4/8/2025 <0.007 µg/L 0.007 µg/L Not Detected
PFOS 4/8/2025 <0.004 µg/L 0.004 µg/L Not Detected
NEtFOSAA 4/8/2025 <0.005 µg/L 0.005 µg/L Not Detected
lithium 4/8/2025 <9 µg/L 9 µg/L Not Detected
NMeFOSAA 4/8/2025 <0.006 µg/L 0.006 µg/L Not Detected
PFTA 4/8/2025 <0.008 µg/L 0.008 µg/L Not Detected
PFMPA 4/8/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFHpS 4/8/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 4/8/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFHxS 4/8/2025 <0.003 µg/L 0.003 µg/L Not Detected
11Cl-PF3OUdS 4/8/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFEESA 4/8/2025 <0.003 µg/L 0.003 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.