Is MONTGOMERY CO PWSD 1 required to publish a Consumer Confidence Report?

Yes. MONTGOMERY CO PWSD 1 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 MONTGOMERY CO PWSD 1’s next Consumer Confidence Report due?

MONTGOMERY CO PWSD 1’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.

WARRENTON, MO · Montgomery County

MONTGOMERY CO PWSD 1 Water System

Consumer Confidence Report status

MONTGOMERY CO PWSD 1 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 2 items for MONTGOMERY CO PWSD 1 that are 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): MO6024406
System type: Community Water System
Population served: 3,850
Service connections: 1,402
Ownership: local government
Water source: groundwater (wells)

MONTGOMERY CO PWSD 1 is one of 140 community water systems in Missouri in the 3,301 to 10,000 people size category, serving 3,850 people from groundwater.

As of August 1, 2026, its federal record holds 14 entries between 1992 and 2024, of which 2 remain open; none are health-based.

Of the 14, 10 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 Public Notice Rule and Revised PN Rule.

Violation history

LSL Reporting
—
LEAD AND COPPER RULE REVISIONS
October 17, 2024 – December 31, 2024
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
October 9, 2024
Unaddressed
Lead Consumer Notice
—
Lead and Copper Rule
October 1, 2024 – April 2, 2025
Resolved
Failure To Address Deficiency
Health-based
Groundwater Rule
August 17, 2024 – January 22, 2025
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
June 1, 2023 – June 30, 2023
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 2020
Unaddressed
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
March 1, 2017 – March 31, 2017
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
April 30, 2016 – June 30, 2016
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
March 1, 2015 – March 31, 2015
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
May 1, 2008 – May 31, 2008
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
May 1, 2005 – May 31, 2005
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
September 1, 2002 – September 30, 2002
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 2001 – July 20, 2002
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
August 20, 1992 – September 19, 1992
Archived

Resolved addressed and confirmed by the stateUnaddressed no corrective action on record yetArchived closed in EPA's records (typically due to age or a data correction)

Period	Violation	Contaminant / rule	Health-based	Status
October 17, 2024 – December 31, 2024	LSL Reporting	LEAD AND COPPER RULE REVISIONS	—	Resolved
October 9, 2024	Public Notification Violation for NPDWR Violation	Public Notice	—	Unaddressed
October 1, 2024 – April 2, 2025	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
August 17, 2024 – January 22, 2025	Failure To Address Deficiency	Groundwater Rule	Health-based	Resolved
June 1, 2023 – June 30, 2023	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
October 1, 2020	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Unaddressed
March 1, 2017 – March 31, 2017	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
April 30, 2016 – June 30, 2016	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
March 1, 2015 – March 31, 2015	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
May 1, 2008 – May 31, 2008	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
May 1, 2005 – May 31, 2005	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
September 1, 2002 – September 30, 2002	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
October 1, 2001 – July 20, 2002	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
August 20, 1992 – September 19, 1992	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived

Resolved addressed and confirmed by the stateUnaddressed no corrective action on record yetArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

October 21, 2025State Public Notification requested4 linked violations
April 2, 2025State Compliance achieved6 linked violations
January 22, 2025State Compliance achieved3 linked violations
August 29, 2024State Formal Notice of Violation issued2 linked violations
August 31, 2023State Public Notification received6 linked violations
July 25, 2023State Violation/Reminder Notice2 linked violations
January 11, 2021State Public Notification received1 linked violation
November 24, 2020State Public Notification requested3 linked violations
January 18, 2019State Compliance achieved4 linked violations
May 19, 2017State Public Notification received3 linked violations
May 2, 2017State Violation/Reminder Notice3 linked violations
August 8, 2016State Public Notification received3 linked violations
June 30, 2016State Compliance achieved3 linked violations
June 22, 2009State Public Notification received6 linked violations
July 30, 2008State Violation/Reminder Notice6 linked violations
September 27, 2007State Public Notification requested2 linked violations
July 5, 2006State Public Notification received10 linked violations
June 27, 2005State Public Notification requested12 linked violations
January 16, 2003State Public Notification received6 linked violations

Common questions

Is MONTGOMERY CO PWSD 1 required to publish a Consumer Confidence Report?: Yes. MONTGOMERY CO PWSD 1 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 MONTGOMERY CO PWSD 1’s next Consumer Confidence Report due?: MONTGOMERY CO PWSD 1’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does MONTGOMERY CO PWSD 1 have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show 2 items for MONTGOMERY CO PWSD 1 that are 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

MOORE, RICH

636-456-8227

WARRENTON, MO 63383-0000