Nielsville, MN · Polk County
Nielsville Water System
Consumer Confidence Report status
Nielsville 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 Nielsville.
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 Minnesota’s official records. Always confirm current status with Minnesota before making decisions based on this information.
System facts
- System ID (PWSID)
- MN1600012
- System type
- Community Water System
- Population served
- 76
- Service connections
- 51
- Ownership
- local government
- Water source
- groundwater (wells)
Nielsville is one of 739 community water systems in Minnesota in the 500 or fewer people size category, serving 76 people from groundwater.
As of August 1, 2026, its federal record holds 1 entry in 2014, all of which EPA lists as closed. Nothing has been added since 2014.
None of the 1 are monitoring or reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset; these involve water-quality, treatment, or public-notice findings instead. The record involves the Total Coliform Rules.
Violation history
Maximum Contaminant Level Violation, Acute (TCR)
Health-basedColiform (TCR)
July 1, 2014 – September 5, 2014
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| July 1, 2014 – September 5, 2014 | Maximum Contaminant Level Violation, Acute (TCR) | Coliform (TCR) | Health-based | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- September 4, 2014State Formal Notice of Violation issued3 linked violations
- September 4, 2014State Compliance Meeting conducted3 linked violations
- September 3, 1995State Compliance Meeting conducted6 linked violations
Common questions
Is Nielsville required to publish a Consumer Confidence Report?
- Yes. Nielsville 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 Nielsville’s next Consumer Confidence Report due?
- Nielsville’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does Nielsville have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for Nielsville.
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
Nielsville City Council
2189462881
Nielsville, MN 56568