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States → Illinois

PRAIRIE PATH WATER COMPANY-CLARENDON

PWS ID: IL0435300 · ST. CHARLES, Illinois 60175

PFAS Detected

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

Population Served
850
Total Violations
27
Health-Based Violations
3
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
249
County
DuPage
School/Daycare
No
MCL Violations
0
Monitoring Violations
10
Treatment Tech Violations
3

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 9 1994
LEAD AND COPPER RULE REVISIONS TT 3 2024
Consumer Confidence Rule Other 2 2023
Gross Alpha, Excl. Radon and U MR 1 1977

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 2 of 60 samples detected PFAS.

Contaminant Date Result MRL Status
PFOS 6/4/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFPeS 6/4/2024 <0.004 µg/L 0.004 µg/L Not Detected
8:2 FTS 6/4/2024 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 6/4/2024 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 6/4/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 6/4/2024 <0.005 µg/L 0.005 µg/L Not Detected
HFPO-DA 6/4/2024 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 6/4/2024 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 6/4/2024 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 6/4/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFUnA 6/4/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFHxA 6/4/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 6/4/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 6/4/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 6/4/2024 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 6/4/2024 <0.02 µg/L 0.02 µg/L Not Detected
PFBS 6/4/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpS 6/4/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFTA 6/4/2024 <0.008 µg/L 0.008 µg/L Not Detected
PFTrDA 6/4/2024 <0.007 µg/L 0.007 µg/L Not Detected
NEtFOSAA 6/4/2024 <0.005 µg/L 0.005 µg/L Not Detected
NMeFOSAA 6/4/2024 <0.006 µg/L 0.006 µg/L Not Detected
lithium 6/4/2024 38.0000 µg/L 9 µg/L Detected
PFDoA 6/4/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 6/4/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 6/4/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFMPA 6/4/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFNA 6/4/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHpA 6/4/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 6/4/2024 <0.003 µg/L 0.003 µg/L Not Detected
ADONA 12/3/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpS 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
4:2 FTS 12/3/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 12/3/2024 <0.004 µg/L 0.004 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
PFBA 12/3/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFPeS 12/3/2024 <0.004 µg/L 0.004 µg/L Not Detected
8:2 FTS 12/3/2024 <0.005 µg/L 0.005 µg/L Not Detected
lithium 12/3/2024 42.0000 µg/L 9 µg/L Detected
NMeFOSAA 12/3/2024 <0.006 µg/L 0.006 µg/L Not Detected
NEtFOSAA 12/3/2024 <0.005 µg/L 0.005 µg/L Not Detected
11Cl-PF3OUdS 12/3/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 12/3/2024 <0.007 µg/L 0.007 µg/L Not Detected
PFTA 12/3/2024 <0.008 µg/L 0.008 µg/L Not Detected
NFDHA 12/3/2024 <0.02 µg/L 0.02 µg/L Not Detected
PFNA 12/3/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHpA 12/3/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 12/3/2024 <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.