Markham
PWSID IL0311770 · Markham, Illinois · serves 12,500 people · surface water source
C
Fair
PFAS test results (EPA UCMR 5)
| Contaminant | Result | Federal limit (MCL) | Sampled |
|---|---|---|---|
| PFHxA | 3 ppt | — | 9/17/2024 |
ppt = parts per trillion (ng/L). Rows highlighted red meet or exceed the 2024 federal limit.
Violation history
| Date | Violation | Type | Health-based | Status |
|---|---|---|---|---|
| 2025-07-02 | LEAD AND COPPER RULE REVISIONS | RPT | No | Resolved |
| 2025-07-01 | Consumer Confidence Rule | Other | No | Unaddressed |
| 2025-07-01 | TTHM | MR | No | Resolved |
| 2023-07-01 | Consumer Confidence Rule | Other | No | Resolved |
| 2023-06-15 | Public Notice | Other | No | Resolved |
| 2023-06-15 | Public Notice | Other | No | Resolved |
| 2022-05-01 | Revised Total Coliform Rule | MON | No | Resolved |
| 2022-04-01 | Chlorine | MR | No | Resolved |