Is UNIONVILLE PWS required to publish a Consumer Confidence Report?

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

UNIONVILLE PWS’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.

UNIONVILLE, MO · Putnam County

UNIONVILLE PWS Water System

Consumer Confidence Report status

UNIONVILLE 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 no open violations for UNIONVILLE PWS.

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): MO2010804
System type: Community Water System
Population served: 1,735
Service connections: 917
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

UNIONVILLE PWS is one of 489 community water systems in Missouri in the 501 to 3,300 people size category, serving 1,735 people from surface water.

As of August 1, 2026, its federal record holds 8 entries between 1993 and 2024, all of which EPA lists as closed.

Of the 8, 2 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 Surface Water Treatment Rules, the Stage 2 Disinfectants and Disinfection Byproducts Rule, and the Total Coliform Rules.

Violation history

Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
November 1, 2024 – November 30, 2024
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
October 25, 2021 – February 28, 2022
Resolved
Single Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
July 1, 2021 – July 31, 2021
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
July 1, 2021 – July 31, 2021
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
January 1, 2016 – March 31, 2016
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2015 – December 31, 2015
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
July 1, 2015 – September 30, 2015
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
August 1, 1993 – August 31, 1993
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
November 1, 2024 – November 30, 2024	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
October 25, 2021 – February 28, 2022	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
July 1, 2021 – July 31, 2021	Single Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
July 1, 2021 – July 31, 2021	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
January 1, 2016 – March 31, 2016	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
October 1, 2015 – December 31, 2015	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
July 1, 2015 – September 30, 2015	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
August 1, 1993 – August 31, 1993	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

No enforcement actions on record for this system.

Common questions

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

PITTMAN, CHARLEY

660-947-2438

UNIONVILLE, MO 63565-0000