KEYSTONE, SD · Pennington County
KEYSTONE Water System
Current status
No open violations on record as of July 4, 2026.
This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 2026. This is a record-keeping and public-information tool — it does not replace South Dakota’s official records. Always confirm current status with South Dakota before making decisions based on this information.
System facts
- System ID (PWSID)
- SD4601082
- System type
- Community Water System
- Population served
- 349
- Service connections
- 249
- Ownership
- local government
- Water source
- groundwater (wells)
Violation history
Monitoring, Regular
—Combined Radium (-226 and -228)
January 1, 2019 – March 31, 2019
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| January 1, 2019 – March 31, 2019 | Monitoring, Regular | Combined Radium (-226 and -228) | — | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
No enforcement actions on record for this system.
Contact
KEYSTONE
6056664827
KEYSTONE, SD 57751