Rapid City
PWSID SD4600406 · Rapid City, South Dakota · serves 72,009 people · surface water source
A
Excellent
PFAS test results (EPA UCMR 5)
| Contaminant | Result | Federal limit (MCL) | Sampled |
|---|---|---|---|
| PFHxS | 5.6 ppt | 10 ppt | 6/23/2025 |
| PFHxS | 4.1 ppt | 10 ppt | 12/10/2024 |
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. 🎉