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States → Illinois

RICHTON PARK

PWS ID: IL0312550 · RICHTON PARK, Illinois 60471

PFAS Detected

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

Population Served
12,504
Total Violations
201
Health-Based Violations
14
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
3,575
County
Cook
School/Daycare
No
MCL Violations
12
Monitoring Violations
96
Treatment Tech Violations
2

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Public Notice Other 51 2024
Coliform (TCR) MCL 12 2007
Consumer Confidence Rule Other 10 2025
Lead and Copper Rule MR 10 2022
Antimony, Total MR 8 2020
Chromium MR 8 2020
Cadmium MR 8 2020
Beryllium, Total MR 8 2020
Nickel MR 8 2020
Selenium MR 8 2020
Arsenic MR 8 2020
Thallium, Total MR 8 2020
Mercury MR 8 2020
Barium MR 8 2020
Nitrate MR 3 2025
Lead and Copper Rule TT 2 2018
TTHM MR 1 2025
Gross Alpha, Excl. Radon and U MR 1 1977
Total Haloacetic Acids (HAA5) MR 1 2025

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 6 of 180 samples detected PFAS.

Contaminant Date Result MRL Status
9Cl-PF3ONS 8/13/2024 <0.002 µg/L 0.002 µg/L Not Detected
4:2 FTS 8/13/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpS 8/13/2024 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 8/13/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFDoA 8/13/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFBA 8/13/2024 <0.005 µg/L 0.005 µg/L Not Detected
8:2 FTS 8/13/2024 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 8/13/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFTA 8/13/2024 <0.008 µg/L 0.008 µg/L Not Detected
PFTrDA 8/13/2024 <0.007 µg/L 0.007 µg/L Not Detected
NMeFOSAA 8/13/2024 <0.006 µg/L 0.006 µg/L Not Detected
11Cl-PF3OUdS 8/13/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFHxA 8/13/2024 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 8/13/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFNA 8/13/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFPeS 8/13/2024 <0.004 µg/L 0.004 µg/L Not Detected
NEtFOSAA 8/13/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFDA 8/13/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFOS 8/13/2024 <0.004 µg/L 0.004 µg/L Not Detected
NFDHA 8/13/2024 <0.02 µg/L 0.02 µg/L Not Detected
PFUnA 8/13/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFHxS 8/13/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 8/13/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFPeA 8/13/2024 <0.003 µg/L 0.003 µg/L Not Detected
lithium 8/13/2024 35.9000 µg/L 9 µg/L Detected
PFHpA 8/13/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 8/13/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 8/13/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 8/13/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFEESA 8/13/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 8/13/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 8/13/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 8/13/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFHpS 8/13/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 8/13/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFTrDA 8/13/2024 <0.007 µg/L 0.007 µg/L Not Detected
PFHxS 8/13/2024 <0.003 µg/L 0.003 µg/L Not Detected
lithium 8/13/2024 43.5000 µg/L 9 µg/L Detected
PFTA 8/13/2024 <0.008 µg/L 0.008 µg/L Not Detected
PFPeS 8/13/2024 <0.004 µg/L 0.004 µg/L Not Detected
NFDHA 8/13/2024 <0.02 µg/L 0.02 µg/L Not Detected
PFEESA 8/13/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 8/13/2024 <0.003 µg/L 0.003 µg/L Not Detected
NMeFOSAA 8/13/2024 <0.006 µg/L 0.006 µg/L Not Detected
8:2 FTS 8/13/2024 <0.005 µg/L 0.005 µg/L Not Detected
NEtFOSAA 8/13/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFMPA 8/13/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFNA 8/13/2024 <0.004 µg/L 0.004 µg/L Not Detected
4:2 FTS 8/13/2024 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 8/13/2024 <0.005 µg/L 0.005 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.