BLACK HAWK, SD · Pennington County
THRALL MTN. PROPERTY OWNERS ASSOCIAT 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)
- SD4600513
- System type
- Community Water System
- Population served
- 70
- Service connections
- 28
- Ownership
- privately owned
- Water source
- groundwater (wells)
Violation history
Monitoring, Regular
—Hexachlorocyclopentadiene
January 1, 1996 – December 31, 1998
ResolvedMonitoring, Regular
—Combined Radium (-226 and -228)
June 1, 1976 – May 31, 1980
Archived
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| January 1, 1996 – December 31, 1998 | Monitoring, Regular | Hexachlorocyclopentadiene | — | Resolved |
| June 1, 1976 – May 31, 1980 | Monitoring, Regular | Combined Radium (-226 and -228) | — | Archived |
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
- August 2, 2004State Compliance achieved20 linked violations
Contact
THRALL MTN. PROPERTY OWNERS ASSOCIAT
6057864366
BLACK HAWK, SD 57718