MACOMB
PWS ID: IL1090350 · MACOMB, Illinois 61455
PFAS Detected
1 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.
Population Served
15,052
Total Violations
195
Health-Based Violations
123
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 5,980
- County
- McDonough
- School/Daycare
- No
- MCL Violations
- 40
- Monitoring Violations
- 36
- Treatment Tech Violations
- 83
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Interim Enhanced Surface Water Treatment Rule | TT | 80 | 2008 |
| TTHM | MCL | 38 | 2024 |
| Coliform (TCR) | MR | 7 | 1995 |
| Public Notice | Other | 7 | 2024 |
| TTHM | MR | 6 | 2006 |
| Total Haloacetic Acids (HAA5) | MR | 6 | 2006 |
| Consumer Confidence Rule | Other | 4 | 2024 |
| Revised Total Coliform Rule | MON | 4 | 2022 |
| Chlorine | MR | 4 | 2022 |
| Surface Water Treatment Rule | TT | 3 | 2001 |
| Coliform (TCR) | MCL | 2 | 2001 |
| Arsenic | MR | 1 | 1979 |
| Gross Alpha, Excl. Radon and U | MR | 1 | 1977 |
| Chromium | MR | 1 | 1979 |
| Barium | MR | 1 | 1979 |
| Fluoride | MR | 1 | 1979 |
| Mercury | MR | 1 | 1979 |
| Selenium | MR | 1 | 1979 |
| Cadmium | MR | 1 | 1979 |
| Nitrate | MR | 1 | 1979 |
PFAS Testing Results (UCMR5)
Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 4 of 120 samples detected PFAS.
| Contaminant | Date | Result | MRL | Status |
|---|---|---|---|---|
| PFTA | 6/18/2024 | <0.008 µg/L | 0.008 µg/L | Not Detected |
| HFPO-DA | 6/18/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| NMeFOSAA | 6/18/2024 | <0.006 µg/L | 0.006 µg/L | Not Detected |
| NEtFOSAA | 6/18/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFTrDA | 6/18/2024 | <0.007 µg/L | 0.007 µg/L | Not Detected |
| PFBA | 6/18/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFPeS | 6/18/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| NFDHA | 6/18/2024 | <0.02 µg/L | 0.02 µg/L | Not Detected |
| PFEESA | 6/18/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFDA | 6/18/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFOA | 6/18/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFOS | 6/18/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFNA | 6/18/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFHxS | 6/18/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHpA | 6/18/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFBS | 6/18/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFMBA | 6/18/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFPeA | 6/18/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFMPA | 6/18/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| 4:2 FTS | 6/18/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFDoA | 6/18/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| lithium | 6/18/2024 | 10.9000 µg/L | 9 µg/L | Detected |
| 8:2 FTS | 6/18/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| 6:2 FTS | 6/18/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFHpS | 6/18/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHxA | 6/18/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFUnA | 6/18/2024 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| 11Cl-PF3OUdS | 6/18/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| 9Cl-PF3ONS | 6/18/2024 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| ADONA | 6/18/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| NEtFOSAA | 3/11/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFTrDA | 3/11/2024 | <0.007 µg/L | 0.007 µg/L | Not Detected |
| PFTA | 3/11/2024 | <0.008 µg/L | 0.008 µg/L | Not Detected |
| 11Cl-PF3OUdS | 3/11/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| lithium | 3/11/2024 | 25.2000 µg/L | 9 µg/L | Detected |
| PFBS | 3/11/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHpA | 3/11/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFNA | 3/11/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFOS | 3/11/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFOA | 3/11/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFDA | 3/11/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFDoA | 3/11/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| NMeFOSAA | 3/11/2024 | <0.006 µg/L | 0.006 µg/L | Not Detected |
| PFUnA | 3/11/2024 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| PFHxS | 3/11/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 9Cl-PF3ONS | 3/11/2024 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| PFMBA | 3/11/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHpS | 3/11/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFPeS | 3/11/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFHxA | 3/11/2024 | <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.