Is COLE COUNTY PWSD 4 required to publish a Consumer Confidence Report?

Yes. COLE COUNTY PWSD 4 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 COLE COUNTY PWSD 4’s next Consumer Confidence Report due?

COLE COUNTY PWSD 4’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

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.

JEFFERSON CITY, MO · Cole County

COLE COUNTY PWSD 4 Water System

Consumer Confidence Report status

COLE COUNTY PWSD 4 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 COLE COUNTY PWSD 4.

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): MO3024163
System type: Community Water System
Population served: 7,568
Service connections: 1,377
Ownership: local government
Water source: groundwater (wells)

COLE COUNTY PWSD 4 is one of 140 community water systems in Missouri in the 3,301 to 10,000 people size category, serving 7,568 people from groundwater.

As of August 1, 2026, its federal record holds 5 entries between 2001 and 2025, all of which EPA lists as closed.

Of the 5, 1 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.

Violation history

Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
December 1, 2025 – December 31, 2025
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
September 1, 2005 – September 30, 2005
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
January 1, 2005 – January 31, 2005
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
January 1, 2003 – January 31, 2003
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
September 1, 2001 – September 30, 2001
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
December 1, 2025 – December 31, 2025	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
September 1, 2005 – September 30, 2005	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
January 1, 2005 – January 31, 2005	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
January 1, 2003 – January 31, 2003	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
September 1, 2001 – September 30, 2001	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

December 16, 2005State Public Notification received2 linked violations
November 20, 2003State Public Notification received8 linked violations
October 22, 2003State Violation/Reminder Notice7 linked violations
October 22, 2003State Public Notification requested23 linked violations
February 7, 2003State Violation/Reminder Notice6 linked violations
September 18, 2001State Formal Notice of Violation issued7 linked violations

Common questions

Is COLE COUNTY PWSD 4 required to publish a Consumer Confidence Report?: Yes. COLE COUNTY PWSD 4 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 COLE COUNTY PWSD 4’s next Consumer Confidence Report due?: COLE COUNTY PWSD 4’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does COLE COUNTY PWSD 4 have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show no open violations for COLE COUNTY PWSD 4.
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

HUMPHREY, WILFORD L

573-395-4578

JEFFERSON CITY, MO 65101-0000