Mo American St Louis St Charles Counties
PWSID MO6010716 · Chesterfield, Missouri · serves 1,111,000 people · surface water source
A
Excellent
PFAS test results (EPA UCMR 5)
| Contaminant | Result | Federal limit (MCL) | Sampled |
|---|---|---|---|
| PFBA | 5.1 ppt | — | 6/17/2024 |
| PFBA | 5 ppt | — | 6/17/2024 |
ppt = parts per trillion (ng/L). Rows highlighted red meet or exceed the 2024 federal limit.
Violation history
No violations on record in the period covered. 🎉