ONIDA, SD · Sully County
ONIDA 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)
- SD4600233
- System type
- Community Water System
- Population served
- 658
- Service connections
- 410
- Ownership
- local government
- Water source
- surface water (rivers, lakes, or reservoirs)
Violation history
Notification, Public
—No contaminant on record
February 12, 1997 – March 11, 1997
ArchivedNotification, Public
—Coliform (TCR)
January 20, 1997 – February 19, 1997
ArchivedMaximum Contaminant Level Violation, Average
Health-basedFluoride
April 9, 1980 – April 8, 1983
ArchivedMonitoring, Regular
—Gross Alpha, Excl. Radon and U
July 1, 1976 – June 30, 1980
ArchivedMonitoring, Regular
—Combined Radium (-226 and -228)
July 1, 1976 – June 30, 1980
Archived
Archived closed in EPA's records (typically due to age or a data correction)
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| February 12, 1997 – March 11, 1997 | Notification, Public | — | — | Archived |
| January 20, 1997 – February 19, 1997 | Notification, Public | Coliform (TCR) | — | Archived |
| April 9, 1980 – April 8, 1983 | Maximum Contaminant Level Violation, Average | Fluoride | Health-based | Archived |
| July 1, 1976 – June 30, 1980 | Monitoring, Regular | Gross Alpha, Excl. Radon and U | — | Archived |
| July 1, 1976 – June 30, 1980 | Monitoring, Regular | Combined Radium (-226 and -228) | — | Archived |
Archived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
- October 15, 1997State Public Notification issued46 linked violations
- June 10, 1997State Public Notification issued124 linked violations
Contact
ONIDA
6052582231
ONIDA, SD 57564