GAYVILLE, SD · Yankton County
GAYVILLE Water System
Consumer Confidence Report status
GAYVILLE 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 GAYVILLE.
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)
- SD4600140
- System type
- Community Water System
- Population served
- 392
- Service connections
- 175
- Ownership
- local government
- Water source
- groundwater (wells)
GAYVILLE is one of 583 community water systems in South Dakota in the 500 or fewer people size category, serving 392 people from groundwater.
As of August 1, 2026, its federal record holds 4 entries between 1976 and 2009, all of which EPA lists as closed. Nothing has been added since 2009.
Of the 4, 3 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, the Stage 1 Disinfectants and Disinfection Byproducts Rule, and the Total Coliform Rules.
Violation history
Treatment Technique No Certif. Operator
Health-basedStage 1 Disinfectants and Disinfection Byproducts Rule
October 20, 2009 – April 22, 2010
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
July 1, 1995 – July 31, 1995
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
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 20, 2009 – April 22, 2010 | Treatment Technique No Certif. Operator | Stage 1 Disinfectants and Disinfection Byproducts Rule | Health-based | Resolved |
| July 1, 1995 – July 31, 1995 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | 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 |
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
- July 30, 1991State Public Notification requested41 linked violations
Common questions
Is GAYVILLE required to publish a Consumer Confidence Report?
- Yes. GAYVILLE 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 GAYVILLE’s next Consumer Confidence Report due?
- GAYVILLE’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does GAYVILLE have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for GAYVILLE.
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
GAYVILLE
6056659693
GAYVILLE, SD 57031