WARRENTON, MO · Montgomery County
MONTGOMERY CO PWSD 1 Water System
Current status
2 items on record are open and awaiting resolution as of July 4, 2026. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings. Full details are in the violation history below.
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)
- MO6024406
- System type
- Community Water System
- Population served
- 3,850
- Service connections
- 1,362
- Ownership
- local government
- Water source
- groundwater (wells)
Violation history
LSL Reporting
—LEAD AND COPPER RULE REVISIONS
October 17, 2024 – December 31, 2024
ResolvedPublic Notification Violation for NPDWR Violation
—Public Notice
October 9, 2024
UnaddressedLead Consumer Notice
—Lead and Copper Rule
October 1, 2024 – April 2, 2025
ResolvedFailure To Address Deficiency
Health-basedGroundwater Rule
August 17, 2024 – January 22, 2025
ResolvedMonitoring, Routine (RTCR)
—Revised Total Coliform Rule
June 1, 2023 – June 30, 2023
ResolvedFollow-up Or Routine LCR Tap M/R
—Lead and Copper Rule
October 1, 2020
UnaddressedMonitoring, Routine (RTCR)
—Revised Total Coliform Rule
March 1, 2017 – March 31, 2017
ResolvedPublic Notification Violation for NPDWR Violation
—Public Notice
April 30, 2016 – June 30, 2016
ResolvedMonitoring, Routine Minor (TCR)
—Coliform (TCR)
March 1, 2015 – March 31, 2015
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
June 1, 2008 – June 30, 2008
ResolvedMonitoring, Routine Minor (TCR)
—Coliform (TCR)
May 1, 2008 – May 31, 2008
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
May 1, 2005 – May 31, 2005
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
September 1, 2002 – September 30, 2002
ResolvedFollow-up Or Routine LCR Tap M/R
—Lead and Copper Rule
October 1, 2001 – July 20, 2002
Resolved
Resolved addressed and confirmed by the stateUnaddressed no corrective action on record yet
| 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 |
| June 1, 2008 – June 30, 2008 | Monitoring, Routine Major (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 |
Resolved addressed and confirmed by the stateUnaddressed no corrective action on record yet
Enforcement actions
- October 21, 2025State Violation/Reminder Notice3 linked violations
- January 22, 2025State Compliance achieved3 linked violations
- December 31, 2024State Compliance achieved2 linked violations
- August 29, 2024State Public Notification requested3 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
- May 2, 2017State Public Notification requested3 linked violations
- January 22, 2014State Compliance achieved11 linked violations
- July 30, 2008State Violation/Reminder Notice6 linked violations
Contact
MOORE, RICH
636-456-8227
WARRENTON, MO 63383-0000