LAKE WINNEBAGO, MO · Cass County
LAKE WINNEBAGO PWS Water System
Consumer Confidence Report status
LAKE WINNEBAGO PWS 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 LAKE WINNEBAGO PWS.
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 Missouri’s official records. Always confirm current status with Missouri before making decisions based on this information.
System facts
- System ID (PWSID)
- MO1010880
- System type
- Community Water System
- Population served
- 1,600
- Service connections
- 739
- Ownership
- local government
- Water source
- groundwater (wells)
LAKE WINNEBAGO PWS is one of 489 community water systems in Missouri in the 501 to 3,300 people size category, serving 1,600 people from groundwater.
As of August 1, 2026, its federal record holds 3 entries between 1992 and 2006, all of which EPA lists as closed. Nothing has been added since 2006.
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 Total Coliform Rules and the Consumer Confidence Rule.
Violation history
Consumer Confidence Report Inadequate Reporting
—Consumer Confidence Rule
July 1, 2006 – September 22, 2006
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
December 1, 2001 – December 31, 2001
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
September 1, 1992 – September 30, 1992
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| July 1, 2006 – September 22, 2006 | Consumer Confidence Report Inadequate Reporting | Consumer Confidence Rule | — | Resolved |
| December 1, 2001 – December 31, 2001 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| September 1, 1992 – September 30, 1992 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- January 18, 2019State Compliance achieved3 linked violations
Common questions
Is LAKE WINNEBAGO PWS required to publish a Consumer Confidence Report?
- Yes. LAKE WINNEBAGO PWS 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 LAKE WINNEBAGO PWS’s next Consumer Confidence Report due?
- LAKE WINNEBAGO PWS’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does LAKE WINNEBAGO PWS have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for LAKE WINNEBAGO PWS.
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
COLLAR, MICHAEL
816-537-6778
LAKE WINNEBAGO, MO 64034-0000