WARRENTON, MO · Warren County

WARRENTON PWS Water System

Current status

No open violations on record as of July 4, 2026.

This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 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): MO6010834
System type: Community Water System
Population served: 8,208
Service connections: 3,908
Ownership: local government
Water source: groundwater (wells)

Violation history

Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
November 1, 2014 – November 30, 2014
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
February 1, 2009 – February 28, 2009
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
December 1, 2008 – December 31, 2008
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
October 1, 2008 – October 31, 2008
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
June 1, 2007 – June 30, 2007
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2005 – June 28, 2006
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
April 1, 2005 – April 30, 2005
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
April 1, 2003 – April 30, 2003
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
July 1, 1995 – July 31, 1995
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
November 1, 2014 – November 30, 2014	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
February 1, 2009 – February 28, 2009	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
December 1, 2008 – December 31, 2008	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
October 1, 2008 – October 31, 2008	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
June 1, 2007 – June 30, 2007	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
July 1, 2005 – June 28, 2006	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
April 1, 2005 – April 30, 2005	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
April 1, 2003 – April 30, 2003	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
July 1, 1995 – July 31, 1995	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

July 13, 2015State Public Notification received6 linked violations
March 5, 2015State Compliance achieved6 linked violations
December 30, 2014State Violation/Reminder Notice4 linked violations
January 22, 2014State Compliance achieved5 linked violations
June 14, 2011State Compliance achieved7 linked violations
February 19, 2009State Public Notification requested55 linked violations
February 19, 2009State Violation/Reminder Notice24 linked violations
December 17, 2008State Public Notification requested3 linked violations
November 21, 2008State Public Notification received2 linked violations
July 25, 2007State Public Notification requested5 linked violations

Contact

GEVERS, GUY

636-456-3535

WARRENTON, MO 63383-0000