SPEARFISH, SD · Lawrence County
SAINT ONGE SEWER & WATER CO Water System
Consumer Confidence Report status
SAINT ONGE SEWER & WATER CO must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.
As of August 1, 2026, EPA's federal records show no open violations for SAINT ONGE SEWER & WATER CO.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 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)
- SD4600287
- System type
- Community Water System
- Population served
- 255
- Service connections
- 78
- Ownership
- local government
- Water source
- groundwater (wells)
SAINT ONGE SEWER & WATER CO is one of 583 community water systems in South Dakota in the 500 or fewer people size category, serving 255 people from groundwater.
As of August 1, 2026, its federal record holds 3 entries between 1976 and 2001, all of which EPA lists as closed. Nothing has been added since 2001.
Of the 3, 2 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves the Radionuclides and Revised Rad Rule and the Total Coliform Rules.
Violation history
Maximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
October 1, 2001 – October 31, 2001
ResolvedMonitoring, 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
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 |
|---|---|---|---|---|
| October 1, 2001 – October 31, 2001 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Resolved |
| 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 |
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
- June 1, 2002State Compliance achieved2 linked violations
- June 1, 2002State Compliance achieved2 linked violations
- November 12, 1999State Public Notification requested3 linked violations
- April 1, 1998State Compliance achieved8 linked violations
- November 13, 1997State Public Notification issued6 linked violations
- May 23, 1996State Public Notification received70 linked violations
Common questions
Is SAINT ONGE SEWER & WATER CO required to publish a Consumer Confidence Report?
- Yes. SAINT ONGE SEWER & WATER CO is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is SAINT ONGE SEWER & WATER CO’s next Consumer Confidence Report due?
- SAINT ONGE SEWER & WATER CO’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does SAINT ONGE SEWER & WATER CO have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for SAINT ONGE SEWER & WATER CO.
What is a Consumer Confidence Report?
- A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.
Contact
SAINT ONGE SEWER & WATER CO
6056457369
SPEARFISH, SD 57783