CORSICA, SD · Douglas County
CORSICA Water System
Consumer Confidence Report status
CORSICA 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 CORSICA.
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)
- SD4600097
- System type
- Community Water System
- Population served
- 561
- Service connections
- 329
- Ownership
- local government
- Water source
- surface water (rivers, lakes, or reservoirs)
CORSICA is one of 124 community water systems in South Dakota in the 501 to 3,300 people size category, serving 561 people from surface water.
As of August 1, 2026, its federal record holds 3 entries between 1976 and 2012, all of which EPA lists as closed. Nothing has been added since 2012.
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 Stage 1 Disinfectants and Disinfection Byproducts Rule.
Violation history
Treatment Technique No Certif. Operator
Health-basedStage 1 Disinfectants and Disinfection Byproducts Rule
October 10, 2012 – April 18, 2013
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 10, 2012 – April 18, 2013 | Treatment Technique No Certif. Operator | Stage 1 Disinfectants and Disinfection Byproducts Rule | 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 17, 2024State Public Notification received43 linked violations
- December 5, 2023State Public Notification requested43 linked violations
Common questions
Is CORSICA required to publish a Consumer Confidence Report?
- Yes. CORSICA 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 CORSICA’s next Consumer Confidence Report due?
- CORSICA’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does CORSICA have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for CORSICA.
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
CORSICA
6059465421
CORSICA, SD 57328