Public Water Partners

O FALLON, MO · St. Charles County

KING ARTHURS COURT Water System

Inactive system

This water system is marked inactive in EPA’s federal records as of December 1, 2006. It is no longer an operating public water system under this PWSID, and no compliance deadlines — including the 2027 Consumer Confidence Report rule — apply to it.

If you are a resident looking for your current water provider, see water systems in St. Charles County, MO.

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)
MO6048010
System type
Community Water System
Population served
165
Service connections
89
Ownership
privately owned
Water source
groundwater (wells)

KING ARTHURS COURT is one of 1,412 community water systems in Missouri in the 500 or fewer people size category, formerly serving 165 people from groundwater.

EPA's federal records list this system as inactive in 2006; the record below is historical.

As of August 1, 2026, its federal record holds 17 entries between 1991 and 2002, all of which EPA lists as closed. Nothing has been added since 2002.

Of the 17, 15 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

  • Monitoring, Routine Major (TCR)

    —

    Coliform (TCR)

    November 1, 2002 – November 30, 2002

    Resolved

  • Monitoring, Routine Major (TCR)

    —

    Coliform (TCR)

    May 1, 2002 – May 31, 2002

    Resolved

  • Monitoring, Routine Major (TCR)

    —

    Coliform (TCR)

    April 1, 2002 – April 30, 2002

    Resolved

  • Monitoring, Routine Major (TCR)

    —

    Coliform (TCR)

    March 1, 2002 – March 31, 2002

    Resolved

  • Monitoring, Routine Major (TCR)

    —

    Coliform (TCR)

    December 1, 2001 – December 31, 2001

    Resolved

  • Monitoring, Routine Major (TCR)

    —

    Coliform (TCR)

    November 1, 2001 – November 30, 2001

    Resolved

  • Monitoring, Routine Major (TCR)

    —

    Coliform (TCR)

    October 1, 2001 – October 31, 2001

    Resolved

  • Monitoring, Routine Major (TCR)

    —

    Coliform (TCR)

    September 1, 2001 – September 30, 2001

    Resolved

  • Consumer Confidence Report Complete Failure to Report

    —

    Consumer Confidence Rule

    July 1, 2001 – December 1, 2006

    Resolved

  • Monitoring, Routine Major (TCR)

    —

    Coliform (TCR)

    November 1, 1993 – November 30, 1993

    Resolved

  • Monitoring, Routine Major (TCR)

    —

    Coliform (TCR)

    July 1, 1993 – July 31, 1993

    Resolved

  • Monitoring, Routine Major (TCR)

    —

    Coliform (TCR)

    August 1, 1992 – August 31, 1992

    Resolved

  • Monitoring, Routine Major (TCR)

    —

    Coliform (TCR)

    July 1, 1992 – July 31, 1992

    Resolved

  • Monitoring, Routine Major (TCR)

    —

    Coliform (TCR)

    February 1, 1992 – February 29, 1992

    Resolved

  • Monitoring, Routine Major (TCR)

    —

    Coliform (TCR)

    January 1, 1992 – January 31, 1992

    Resolved

  • Monitoring, Routine Major (TCR)

    —

    Coliform (TCR)

    November 1, 1991 – November 30, 1991

    Resolved

  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    August 1, 1991 – August 31, 1991

    Resolved

Resolved addressed and confirmed by the state

Enforcement actions

Last known contact on file (system is inactive)

KELLEY, KATHY

636-978-9743

O FALLON, MO 63366-0000