NORTH SIOUX CITY, SD · Union County
NORTH SIOUX CITY Water System
Consumer Confidence Report status
NORTH SIOUX CITY 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 NORTH SIOUX CITY.
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)
- SD4600226
- System type
- Community Water System
- Population served
- 3,042
- Service connections
- 1,249
- Ownership
- local government
- Water source
- groundwater (wells)
NORTH SIOUX CITY is one of 124 community water systems in South Dakota in the 501 to 3,300 people size category, serving 3,042 people from groundwater.
As of August 1, 2026, its federal record holds 3 entries between 1976 and 1999, all of which EPA lists as closed. Nothing has been added since 1999.
All 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 and volatile organic chemicals.
Violation history
Monitoring, Regular
—Vinyl chloride
January 1, 1999 – December 31, 1999
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 |
|---|---|---|---|---|
| January 1, 1999 – December 31, 1999 | Monitoring, Regular | Vinyl chloride | — | 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
No enforcement actions on record for this system.
Common questions
Is NORTH SIOUX CITY required to publish a Consumer Confidence Report?
- Yes. NORTH SIOUX CITY 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 NORTH SIOUX CITY’s next Consumer Confidence Report due?
- NORTH SIOUX CITY’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does NORTH SIOUX CITY have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for NORTH SIOUX CITY.
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
NORTH SIOUX CITY
6052329165
NORTH SIOUX CITY, SD 57049