Is WASHINGTON COUNTY PWSD 1 required to publish a Consumer Confidence Report?

Yes. WASHINGTON COUNTY 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 WASHINGTON COUNTY PWSD 1’s next Consumer Confidence Report due?

WASHINGTON COUNTY 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.

POTOSI, MO · Washington County

WASHINGTON COUNTY PWSD 1 Water System

Consumer Confidence Report status

WASHINGTON COUNTY 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 no open violations for WASHINGTON COUNTY PWSD 1.

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): MO6024633
System type: Community Water System
Population served: 503
Service connections: 210
Ownership: local government
Water source: groundwater (wells)

WASHINGTON COUNTY PWSD 1 is one of 489 community water systems in Missouri in the 501 to 3,300 people size category, serving 503 people from groundwater.

As of August 1, 2026, its federal record holds 20 entries between 1991 and 2025, all of which EPA lists as closed.

Of the 20, 3 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 Consumer Confidence Rule, and the Public Notice Rule and Revised PN Rule.

Violation history

Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
July 1, 2025 – November 25, 2025
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
July 1, 2021 – December 6, 2021
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
April 1, 2015 – April 30, 2015
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
August 1, 2010 – August 31, 2010
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
December 1, 2009 – October 3, 2011
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2009 – October 3, 2011
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
May 1, 2009 – October 3, 2011
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
May 1, 2009 – May 31, 2009
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
January 9, 2009 – September 2, 2011
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
November 1, 2008 – November 30, 2008
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
September 7, 2008 – September 2, 2011
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
July 1, 2008 – July 31, 2008
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
September 1, 2006 – September 30, 2006
Archived
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2005 – September 28, 2007
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
July 1, 2003 – July 31, 2003
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
June 1, 2003 – June 30, 2003
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
November 1, 2002 – November 30, 2002
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
October 1, 2002 – October 31, 2002
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
September 1, 1995 – September 30, 1995
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
September 1, 1991 – September 30, 1991
Resolved

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Period	Violation	Contaminant / rule	Health-based	Status
July 1, 2025 – November 25, 2025	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
July 1, 2021 – December 6, 2021	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
April 1, 2015 – April 30, 2015	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
August 1, 2010 – August 31, 2010	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
December 1, 2009 – October 3, 2011	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
July 1, 2009 – October 3, 2011	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
May 1, 2009 – October 3, 2011	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
May 1, 2009 – May 31, 2009	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
January 9, 2009 – September 2, 2011	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
November 1, 2008 – November 30, 2008	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
September 7, 2008 – September 2, 2011	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
July 1, 2008 – July 31, 2008	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
September 1, 2006 – September 30, 2006	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
July 1, 2005 – September 28, 2007	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 2003 – July 31, 2003	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
June 1, 2003 – June 30, 2003	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
November 1, 2002 – November 30, 2002	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
October 1, 2002 – October 31, 2002	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
September 1, 1995 – September 30, 1995	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
September 1, 1991 – September 30, 1991	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

July 30, 2010State Public Notification requested2 linked violations
July 30, 2010State Violation/Reminder Notice1 linked violation
June 14, 2010State Violation/Reminder Notice3 linked violations
December 16, 2009State Public Notification requested3 linked violations
October 1, 2009State Public Notification requested5 linked violations
September 28, 2007State Compliance achieved6 linked violations
October 31, 2005State Compliance achieved9 linked violations
October 3, 2005State Compliance achieved10 linked violations
August 7, 2003State Public Notification received3 linked violations
July 30, 2003State Violation/Reminder Notice4 linked violations
January 10, 2003State Violation/Reminder Notice1 linked violation
November 6, 2001State Public Notification requested3 linked violations
September 24, 2001State Public Notification requested4 linked violations

Common questions

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

BENSON, TAMMY

573-760-2655

POTOSI, MO 63664-0000