Public Water Partners

KEYTESVILLE, MO · Chariton County

KEYTESVILLE PWS Water System

Consumer Confidence Report status

KEYTESVILLE 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 1 item for KEYTESVILLE PWS that is open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.

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)
MO2010420
System type
Community Water System
Population served
500
Service connections
242
Ownership
local government
Water source
groundwater (wells)

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

As of August 1, 2026, its federal record holds 7 entries between 2003 and 2025, of which 1 remains open; none are health-based.

Of the 7, 6 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 Groundwater Rule, the Stage 2 Disinfectants and Disinfection Byproducts Rule, and the Lead and Copper Rule.

Violation history

  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    October 1, 2025 – December 31, 2025

    Archived

  • Notification, Known or Potential LSL

    —

    LEAD AND COPPER RULE REVISIONS

    July 2, 2025

    Unaddressed

  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    —

    Groundwater Rule

    July 1, 2025 – July 31, 2025

    Resolved

  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    —

    Groundwater Rule

    January 1, 2024 – January 31, 2024

    Resolved

  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    —

    Groundwater Rule

    December 1, 2020 – December 31, 2020

    Resolved

  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    —

    Groundwater Rule

    February 1, 2012 – February 29, 2012

    Resolved

  • Monitoring, Routine Minor (TCR)

    —

    Coliform (TCR)

    May 1, 2003 – May 31, 2003

    Archived

Archived closed in EPA's records (typically due to age or a data correction)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 KEYTESVILLE PWS required to publish a Consumer Confidence Report?

Yes. KEYTESVILLE 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 KEYTESVILLE PWS’s next Consumer Confidence Report due?

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

Does KEYTESVILLE PWS have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show 1 item for KEYTESVILLE PWS that is open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.

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

MC KENZIE, JULIA

660-288-3552

KEYTESVILLE, MO 65261-0000