Public Water Partners

VERSAILLES, MO · Morgan County

ZWANZIG MHP Water System

Consumer Confidence Report status

ZWANZIG MHP 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 1 open health-based violation for ZWANZIG MHP, alongside 2 other open items.

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)
MO3041171
System type
Community Water System
Population served
50
Service connections
21
Ownership
privately owned
Water source
groundwater (wells)

ZWANZIG MHP is one of 1,412 community water systems in Missouri in the 500 or fewer people size category, serving 50 people from groundwater.

As of August 1, 2026, its federal record holds 22 entries between 1993 and 2024, of which 1 health-based item remains open, alongside 2 other open entries.

Of the 22, 9 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, the Consumer Confidence Rule, and the Groundwater Rule.

Violation history

  • Failure To Address Deficiency

    Health-based

    Groundwater Rule

    November 7, 2024

    Unaddressed

  • Failure to Consult with State

    —

    Groundwater Rule

    August 9, 2024

    Unaddressed

  • Lead Consumer Notice

    —

    Lead and Copper Rule

    December 30, 2023

    Unaddressed

  • Consumer Confidence Report Complete Failure to Report

    —

    Consumer Confidence Rule

    July 1, 2022 – October 3, 2023

    Resolved

  • Monitoring, Routine (RTCR)

    —

    Revised Total Coliform Rule

    June 1, 2022 – June 30, 2022

    Resolved

  • Consumer Confidence Report Inadequate Reporting

    —

    Consumer Confidence Rule

    July 1, 2021 – December 6, 2021

    Resolved

  • Public Notification Violation for NPDWR Violation

    —

    Public Notice

    May 6, 2021 – October 28, 2021

    Resolved

  • Consumer Confidence Report Complete Failure to Report

    —

    Consumer Confidence Rule

    July 1, 2020 – November 1, 2021

    Resolved

  • Monitoring, Routine (RTCR)

    —

    Revised Total Coliform Rule

    March 1, 2020 – March 31, 2020

    Resolved

  • Monitoring, Routine (RTCR)

    —

    Revised Total Coliform Rule

    August 1, 2016 – August 31, 2016

    Resolved

  • Monitoring, Routine Major (TCR)

    —

    Coliform (TCR)

    June 1, 2008 – June 30, 2008

    Resolved

  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    May 1, 2006 – May 31, 2006

    Resolved

  • Monitoring, Routine Minor (TCR)

    —

    Coliform (TCR)

    April 1, 2006 – April 30, 2006

    Resolved

  • Monitoring, Routine Minor (TCR)

    —

    Coliform (TCR)

    January 1, 2006 – January 31, 2006

    Resolved

  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    September 1, 2005 – September 30, 2005

    Resolved

  • Monitoring, Routine Major (TCR)

    —

    Coliform (TCR)

    May 1, 2005 – May 31, 2005

    Resolved

  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    August 1, 2004 – August 31, 2004

    Resolved

  • Consumer Confidence Report Complete Failure to Report

    —

    Consumer Confidence Rule

    July 1, 2004 – April 27, 2005

    Resolved

  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    June 1, 2004 – June 30, 2004

    Resolved

  • Consumer Confidence Report Complete Failure to Report

    —

    Consumer Confidence Rule

    July 1, 2003 – April 27, 2005

    Resolved

  • Consumer Confidence Report Complete Failure to Report

    —

    Consumer Confidence Rule

    July 1, 2002 – January 23, 2003

    Resolved

  • Monitoring, Regular

    —

    Gross Alpha, Excl. Radon and U

    September 1, 1993 – August 31, 1997

    Resolved

Unaddressed no corrective action on record yetResolved addressed and confirmed by the state

Enforcement actions

No enforcement actions on record for this system.

Common questions

Is ZWANZIG MHP required to publish a Consumer Confidence Report?

Yes. ZWANZIG MHP 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 ZWANZIG MHP’s next Consumer Confidence Report due?

ZWANZIG MHP’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

Does ZWANZIG MHP have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show 1 open health-based violation for ZWANZIG MHP, alongside 2 other open items.

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

HASLAG, ETHAN

573-680-4101

VERSAILLES, MO 65084-0000