Is WINDSOR PWS required to publish a Consumer Confidence Report?

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

WINDSOR 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.

WINDSOR, MO · Henry County

WINDSOR PWS Water System

Consumer Confidence Report status

WINDSOR 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 WINDSOR 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): MO1010865
System type: Community Water System
Population served: 2,900
Service connections: 1,131
Ownership: local government
Water source: groundwater (wells)

WINDSOR PWS is one of 489 community water systems in Missouri in the 501 to 3,300 people size category, serving 2,900 people from groundwater.

As of August 1, 2026, its federal record holds 17 entries between 2001 and 2025, of which 1 remains open; none are health-based.

Of the 17, 11 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 Lead and Copper Rule, and the Consumer Confidence Rule.

Violation history

Notification, Known or Potential LSL
—
LEAD AND COPPER RULE REVISIONS
July 2, 2025
Unaddressed
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 31, 2018 – July 16, 2019
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
August 1, 2015 – August 31, 2015
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
July 1, 2015 – July 31, 2015
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
October 1, 2012 – October 31, 2012
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
September 1, 2012 – September 30, 2012
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
August 1, 2011 – August 31, 2011
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
June 1, 2011 – June 30, 2011
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
August 1, 2010 – August 31, 2010
Resolved
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
February 1, 2010 – February 28, 2010
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
November 1, 2009 – November 30, 2009
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2009 – July 26, 2012
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
February 9, 2009 – May 21, 2013
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
December 1, 2008 – December 31, 2008
Resolved
Monitoring, Regular
—
Nitrate-Nitrite
January 1, 2007 – December 31, 2007
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
August 1, 2004 – August 31, 2004
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 2001 – September 14, 2004
Resolved

Unaddressed no corrective action on record yetResolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
July 2, 2025	Notification, Known or Potential LSL	LEAD AND COPPER RULE REVISIONS	—	Unaddressed
October 31, 2018 – July 16, 2019	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
August 1, 2015 – August 31, 2015	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
July 1, 2015 – July 31, 2015	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
October 1, 2012 – October 31, 2012	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
September 1, 2012 – September 30, 2012	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
August 1, 2011 – August 31, 2011	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
June 1, 2011 – June 30, 2011	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
August 1, 2010 – August 31, 2010	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
February 1, 2010 – February 28, 2010	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Resolved
November 1, 2009 – November 30, 2009	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
July 1, 2009 – July 26, 2012	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
February 9, 2009 – May 21, 2013	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
December 1, 2008 – December 31, 2008	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
January 1, 2007 – December 31, 2007	Monitoring, Regular	Nitrate-Nitrite	—	Resolved
August 1, 2004 – August 31, 2004	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
October 1, 2001 – September 14, 2004	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved

Unaddressed no corrective action on record yetResolved addressed and confirmed by the state

Enforcement actions

September 20, 2010State Public Notification requested2 linked violations
April 13, 2010State Public Notification received2 linked violations
March 22, 2010State Public Notification requested2 linked violations
March 22, 2010State Violation/Reminder Notice1 linked violation
November 24, 2009State Public Notification requested1 linked violation
November 24, 2009State Violation/Reminder Notice2 linked violations
August 30, 2007State Compliance achieved5 linked violations
September 30, 2004State Public Notification requested1 linked violation
September 14, 2004State Compliance achieved2 linked violations

Common questions

Is WINDSOR PWS required to publish a Consumer Confidence Report?: Yes. WINDSOR 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 WINDSOR PWS’s next Consumer Confidence Report due?: WINDSOR PWS’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does WINDSOR PWS have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show 1 item for WINDSOR 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

BROWN, JASON

660-647-3512

WINDSOR, MO 65360-0000