LAKE OF EGYPT PWD
PWS ID: IL1995200 · MARION, Illinois 62959
Population Served
11,368
Total Violations
172
Health-Based Violations
65
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 4,547
- County
- Williamson
- School/Daycare
- No
- MCL Violations
- 16
- Monitoring Violations
- 77
- Treatment Tech Violations
- 49
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Surface Water Treatment Rule | MR | 32 | 2000 |
| CARBON, TOTAL | TT | 29 | 2024 |
| Surface Water Treatment Rule | TT | 17 | 1994 |
| Coliform (TCR) | MR | 14 | 2005 |
| Coliform (TCR) | MCL | 10 | 2006 |
| TTHM | MR | 8 | 2003 |
| Total Haloacetic Acids (HAA5) | MR | 8 | 2003 |
| TTHM | MCL | 6 | 2011 |
| Interim Enhanced Surface Water Treatment Rule | MR | 4 | 2004 |
| Chloramine | MR | 4 | 2005 |
| Simazine | MR | 3 | 1999 |
| Interim Enhanced Surface Water Treatment Rule | TT | 3 | 2002 |
| Atrazine | MR | 3 | 1999 |
| Gross Alpha, Excl. Radon and U | MR | 1 | 1977 |
PFAS Testing Results (UCMR5)
Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 120 samples detected PFAS.
| Contaminant | Date | Result | MRL | Status |
|---|---|---|---|---|
| 9Cl-PF3ONS | 7/1/2025 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| ADONA | 7/1/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFBA | 7/1/2025 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| 4:2 FTS | 7/1/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 8:2 FTS | 7/1/2025 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFMPA | 7/1/2025 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFPeA | 7/1/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFMBA | 7/1/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| NFDHA | 7/1/2025 | <0.02 µg/L | 0.02 µg/L | Not Detected |
| PFPeS | 7/1/2025 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFHpS | 7/1/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| HFPO-DA | 7/1/2025 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| 11Cl-PF3OUdS | 7/1/2025 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFEESA | 7/1/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFTA | 7/1/2025 | <0.008 µg/L | 0.008 µg/L | Not Detected |
| 6:2 FTS | 7/1/2025 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| NEtFOSAA | 7/1/2025 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| NMeFOSAA | 7/1/2025 | <0.006 µg/L | 0.006 µg/L | Not Detected |
| PFTrDA | 7/1/2025 | <0.007 µg/L | 0.007 µg/L | Not Detected |
| PFUnA | 7/1/2025 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| lithium | 7/1/2025 | <9 µg/L | 9 µg/L | Not Detected |
| PFBS | 7/1/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHpA | 7/1/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFNA | 7/1/2025 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFOS | 7/1/2025 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFOA | 7/1/2025 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFHxA | 7/1/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFDoA | 7/1/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHxS | 7/1/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFDA | 7/1/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| lithium | 4/1/2025 | <9 µg/L | 9 µg/L | Not Detected |
| PFEESA | 4/1/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFMPA | 4/1/2025 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFHxS | 4/1/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFTA | 4/1/2025 | <0.008 µg/L | 0.008 µg/L | Not Detected |
| PFTrDA | 4/1/2025 | <0.007 µg/L | 0.007 µg/L | Not Detected |
| NEtFOSAA | 4/1/2025 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| NMeFOSAA | 4/1/2025 | <0.006 µg/L | 0.006 µg/L | Not Detected |
| PFPeA | 4/1/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFMBA | 4/1/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHpA | 4/1/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| NFDHA | 4/1/2025 | <0.02 µg/L | 0.02 µg/L | Not Detected |
| PFPeS | 4/1/2025 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFHpS | 4/1/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFNA | 4/1/2025 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFOS | 4/1/2025 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFBA | 4/1/2025 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| 8:2 FTS | 4/1/2025 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFBS | 4/1/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 6:2 FTS | 4/1/2025 | <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.