TRENTON, OH · Butler County

TRENTON 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): OH0903012
System type: Community Water System
Population served: 13,012
Service connections: 4,618
Ownership: local government
Water source: groundwater (wells)

Violation history

Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
November 30, 2018
Unaddressed
Monitoring, Regular
—
Nitrate
January 1, 2007 – March 31, 2007
Resolved
Monitoring, Regular
—
Atrazine
July 1, 2002 – September 30, 2002
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
October 1, 2000 – October 31, 2000
Resolved
Maximum Contaminant Level Violation, Acute (TCR)
Health-based
Coliform (TCR)
September 1, 1996 – September 30, 1996
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
October 1, 1993 – October 31, 1993
Resolved
Monitoring, Regular
—
Cadmium
September 25, 1986 – September 24, 1989
Resolved
Monitoring, Regular
—
Chromium
September 25, 1986 – September 24, 1989
Resolved
Monitoring, Regular
—
Fluoride
September 25, 1986 – September 24, 1989
Resolved
Monitoring, Regular
—
Barium
September 25, 1986 – September 24, 1989
Resolved
Monitoring, Regular
—
Nitrate
September 25, 1986 – September 24, 1989
Resolved
Monitoring, Regular
—
Selenium
September 25, 1986 – September 24, 1989
Resolved
Monitoring, Regular
—
Arsenic
September 25, 1986 – September 24, 1989
Resolved
Monitoring, Regular
—
Mercury
September 25, 1986 – September 24, 1989
Resolved

Unaddressed no corrective action on record yetResolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
November 30, 2018	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Unaddressed
January 1, 2007 – March 31, 2007	Monitoring, Regular	Nitrate	—	Resolved
July 1, 2002 – September 30, 2002	Monitoring, Regular	Atrazine	—	Resolved
October 1, 2000 – October 31, 2000	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
September 1, 1996 – September 30, 1996	Maximum Contaminant Level Violation, Acute (TCR)	Coliform (TCR)	Health-based	Resolved
October 1, 1993 – October 31, 1993	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
September 25, 1986 – September 24, 1989	Monitoring, Regular	Cadmium	—	Resolved
September 25, 1986 – September 24, 1989	Monitoring, Regular	Chromium	—	Resolved
September 25, 1986 – September 24, 1989	Monitoring, Regular	Fluoride	—	Resolved
September 25, 1986 – September 24, 1989	Monitoring, Regular	Barium	—	Resolved
September 25, 1986 – September 24, 1989	Monitoring, Regular	Nitrate	—	Resolved
September 25, 1986 – September 24, 1989	Monitoring, Regular	Selenium	—	Resolved
September 25, 1986 – September 24, 1989	Monitoring, Regular	Arsenic	—	Resolved
September 25, 1986 – September 24, 1989	Monitoring, Regular	Mercury	—	Resolved

Unaddressed no corrective action on record yetResolved addressed and confirmed by the state

Enforcement actions

June 27, 2025State Compliance achieved1 linked violation
April 18, 2007State Compliance achieved56 linked violations
December 30, 2002State Compliance achieved46 linked violations
March 9, 1990State Public Notification received8 linked violations
January 25, 1990State Compliance achieved8 linked violations
January 12, 1990State Formal Notice of Violation issued8 linked violations
August 5, 1981State Public Notification received1 linked violation

Contact

NICHOLS, MARCOS

513-988-6304

TRENTON, OH 45067