MONROE, OH · Butler County

MONROE CITY PWS Water System

Current status

1 item on record is 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 Ohio’s official records. Always confirm current status with Ohio before making decisions based on this information.

System facts

System ID (PWSID): OH0902012
System type: Community Water System
Population served: 15,600
Service connections: 4,536
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Public Notification Violation for NPDWR Violation
—
Public Notice
May 14, 2025 – May 30, 2025
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2024 – March 31, 2024
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2024 – March 31, 2024
Resolved
Monitoring and Reporting (DBP)
—
TTHM
April 1, 2022 – June 30, 2022
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
April 1, 2022 – June 30, 2022
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
November 2, 2021
Unaddressed
Monitoring and Reporting (DBP)
—
TTHM
April 1, 2019 – June 30, 2019
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
April 1, 2019 – June 30, 2019
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
February 1, 2016 – February 29, 2016
Archived
Lead Consumer Notice
—
Lead and Copper Rule
December 31, 2011 – February 14, 2012
Resolved
Failure Submit IDSE/Subpart V Plan Rpt
—
Stage 2 Disinfectants and Disinfection Byproducts Rule
October 1, 2011 – November 10, 2011
Resolved
Monitoring, Regular
—
Arsenic
April 1, 2011 – June 30, 2011
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
October 1, 2008 – October 31, 2008
Resolved
Monitoring, Regular
—
Arsenic
July 1, 2008 – September 30, 2008
Resolved
Monitoring, Regular
—
Arsenic
April 1, 2007 – June 30, 2007
Resolved
Monitoring, Regular
—
Arsenic
July 1, 2006 – September 30, 2006
Resolved
Monitoring, Regular
—
Arsenic
April 1, 2006 – June 30, 2006
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
September 1, 2005 – September 30, 2005
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
July 1, 2005 – September 30, 2005
Resolved
Monitoring and Reporting (DBP)
—
TTHM
July 1, 2004 – September 30, 2004
Archived
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
July 1, 2004 – September 30, 2004
Resolved
Monitoring, Regular
—
Nitrate
January 1, 2003 – June 30, 2003
Resolved
Monitoring, Regular
—
Carbofuran
January 1, 1997 – March 31, 1997
Resolved
Monitoring, Regular
—
Benzo(a)pyrene
January 1, 1997 – March 31, 1997
Resolved
Monitoring, Regular
—
2,4-D
January 1, 1997 – March 31, 1997
Resolved
Monitoring, Regular
—
Methoxychlor
January 1, 1997 – March 31, 1997
Resolved

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
May 14, 2025 – May 30, 2025	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
January 1, 2024 – March 31, 2024	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2024 – March 31, 2024	Monitoring and Reporting (DBP)	TTHM	—	Resolved
April 1, 2022 – June 30, 2022	Monitoring and Reporting (DBP)	TTHM	—	Resolved
April 1, 2022 – June 30, 2022	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
November 2, 2021	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Unaddressed
April 1, 2019 – June 30, 2019	Monitoring and Reporting (DBP)	TTHM	—	Resolved
April 1, 2019 – June 30, 2019	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
February 1, 2016 – February 29, 2016	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived
December 31, 2011 – February 14, 2012	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
October 1, 2011 – November 10, 2011	Failure Submit IDSE/Subpart V Plan Rpt	Stage 2 Disinfectants and Disinfection Byproducts Rule	—	Resolved
April 1, 2011 – June 30, 2011	Monitoring, Regular	Arsenic	—	Resolved
October 1, 2008 – October 31, 2008	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
July 1, 2008 – September 30, 2008	Monitoring, Regular	Arsenic	—	Resolved
April 1, 2007 – June 30, 2007	Monitoring, Regular	Arsenic	—	Resolved
July 1, 2006 – September 30, 2006	Monitoring, Regular	Arsenic	—	Resolved
April 1, 2006 – June 30, 2006	Monitoring, Regular	Arsenic	—	Resolved
September 1, 2005 – September 30, 2005	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
July 1, 2005 – September 30, 2005	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
July 1, 2004 – September 30, 2004	Monitoring and Reporting (DBP)	TTHM	—	Archived
July 1, 2004 – September 30, 2004	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2003 – June 30, 2003	Monitoring, Regular	Nitrate	—	Resolved
January 1, 1997 – March 31, 1997	Monitoring, Regular	Carbofuran	—	Resolved
January 1, 1997 – March 31, 1997	Monitoring, Regular	Benzo(a)pyrene	—	Resolved
January 1, 1997 – March 31, 1997	Monitoring, Regular	2,4-D	—	Resolved
January 1, 1997 – March 31, 1997	Monitoring, Regular	Methoxychlor	—	Resolved

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

July 2, 2025State Violation/Reminder Notice2 linked violations
July 1, 2025State Public Notification received3 linked violations
May 13, 2024State Public Notification requested3 linked violations
May 23, 2023State Public Notification received4 linked violations
November 2, 2021State Violation/Reminder Notice2 linked violations
June 25, 2010Federal Compliance achieved3 linked violations
May 19, 2009Federal Final Administrative Order issued3 linked violations
April 19, 2007State Compliance achieved4 linked violations
January 4, 2005State Compliance achieved2 linked violations

Contact

MCNUTT, ZACHARY

513-500-9181

MONROE, OH 45050