Darlington Estates
PWSID SD4600403 · Rapid City, South Dakota · serves 25 people · groundwater source
F
Failing
Violation history
| Date | Violation | Type | Health-based | Status |
|---|---|---|---|---|
| 2026-01-01 | Gross Alpha, Excl. Radon and U | MCL | Yes | Archived |
| 2026-01-01 | Combined Radium (-226 and -228) | MCL | Yes | Archived |
| 2025-11-12 | Stage 1 Disinfectants and Disinfection Byproducts Rule | TT | Yes | Resolved |
| 2025-10-01 | Combined Radium (-226 and -228) | MCL | Yes | Archived |
| 2025-07-01 | Combined Radium (-226 and -228) | MCL | Yes | Archived |