Public Water Partners

POTOSI, MO · Washington County

POTOSI EAST Water System

Consumer Confidence Report status

POTOSI EAST 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 POTOSI EAST.

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)
MO6069096
System type
Community Water System
Population served
900
Service connections
4
Ownership
state government
Water source
groundwater (wells)

POTOSI EAST is one of 489 community water systems in Missouri in the 501 to 3,300 people size category, serving 900 people from groundwater.

As of August 1, 2026, its federal record holds 16 entries between 1993 and 2023, all of which EPA lists as closed. Nothing has been added since 2023.

Of the 16, 5 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 Public Notice Rule and Revised PN Rule, and the Groundwater Rule.

Violation history

  • Monitoring, Routine (RTCR)

    —

    Revised Total Coliform Rule

    March 1, 2023 – March 31, 2023

    Resolved

  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    September 1, 2015 – September 30, 2015

    Resolved

  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    December 1, 2014 – December 31, 2014

    Resolved

  • Public Notification Violation for NPDWR Violation

    —

    Public Notice

    November 10, 2011 – March 13, 2013

    Resolved

  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    November 1, 2011 – November 30, 2011

    Resolved

  • Public Notification Violation for NPDWR Violation

    —

    Public Notice

    September 14, 2011 – March 13, 2013

    Resolved

  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    September 1, 2011 – September 30, 2011

    Resolved

  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    August 1, 2011 – August 31, 2011

    Resolved

  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    July 1, 2011 – July 31, 2011

    Resolved

  • Monitoring, Routine Minor (TCR)

    —

    Coliform (TCR)

    December 1, 2010 – December 31, 2010

    Resolved

  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    February 1, 2010 – February 28, 2010

    Resolved

  • Monitoring, Source Water (GWR)

    —

    E. COLI

    January 1, 2010 – September 30, 2010

    Resolved

  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    January 1, 2010 – January 31, 2010

    Resolved

  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    October 1, 2009 – October 31, 2009

    Resolved

  • Monitoring, Routine Major (TCR)

    —

    Coliform (TCR)

    July 1, 1993 – July 31, 1993

    Archived

  • Monitoring, Regular

    —

    Nitrate-Nitrite

    January 1, 1993 – December 31, 1993

    Resolved

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 POTOSI EAST required to publish a Consumer Confidence Report?

Yes. POTOSI EAST 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 POTOSI EAST’s next Consumer Confidence Report due?

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

Does POTOSI EAST have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show no open violations for POTOSI EAST.

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

BLOUNT, JOSEPH

573-854-3898

POTOSI, MO 63664-0000