COLUMBUS, OH · Madison County

LONDON CITY PWS 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 Ohio’s official records. Always confirm current status with Ohio before making decisions based on this information.

System facts

System ID (PWSID): OH4900712
System type: Community Water System
Population served: 10,256
Service connections: 4,302
Ownership: local government
Water source: groundwater (wells)

Violation history

Notification, Known or Potential LSL
—
LEAD AND COPPER RULE REVISIONS
July 2, 2025
Unaddressed
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
December 20, 2024
Unaddressed
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
January 25, 2024 – June 13, 2024
Resolved
Monitoring, Source Water (GWR)
—
E. COLI
July 21, 2023 – July 31, 2023
Resolved
Maximum Contaminant Level Violation, E. coli (RTCR)
Health-based
Revised Total Coliform Rule
July 1, 2022 – July 28, 2022
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
January 1, 2022 – June 13, 2024
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
January 21, 2020 – June 13, 2024
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
September 14, 2018 – June 13, 2024
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
January 1, 2015 – January 31, 2015
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
April 1, 2013 – April 30, 2013
Resolved
Maximum Contaminant Level Violation, Acute (TCR)
Health-based
Coliform (TCR)
June 1, 2012 – June 30, 2012
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
November 1, 2004 – November 30, 2004
Resolved
Maximum Contaminant Level Violation, Acute (TCR)
Health-based
Coliform (TCR)
September 1, 2004 – September 30, 2004
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
September 1, 2004 – September 30, 2004
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
August 1, 2003 – August 31, 2003
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
July 1, 2000 – July 31, 2000
Resolved
Monitoring, Regular
—
BHC-GAMMA
January 1, 1997 – March 31, 1997
Resolved
Monitoring, Regular
—
Picloram
January 1, 1997 – March 31, 1997
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) phthalate
January 1, 1997 – March 31, 1997
Resolved
Monitoring, Regular
—
Methoxychlor
January 1, 1997 – March 31, 1997
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
October 1, 1996 – October 31, 1996
Resolved
Monitoring, Regular
—
Atrazine
January 1, 1996 – March 31, 1996
Resolved
Monitoring, Regular
—
Simazine
January 1, 1996 – March 31, 1996
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
July 1, 1993 – July 31, 1993
Resolved

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

Period	Violation	Contaminant / rule	Health-based	Status
July 2, 2025	Notification, Known or Potential LSL	LEAD AND COPPER RULE REVISIONS	—	Unaddressed
December 20, 2024	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Unaddressed
January 25, 2024 – June 13, 2024	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
July 21, 2023 – July 31, 2023	Monitoring, Source Water (GWR)	E. COLI	—	Resolved
July 1, 2022 – July 28, 2022	Maximum Contaminant Level Violation, E. coli (RTCR)	Revised Total Coliform Rule	Health-based	Resolved
January 1, 2022 – June 13, 2024	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
January 21, 2020 – June 13, 2024	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
September 14, 2018 – June 13, 2024	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
January 1, 2015 – January 31, 2015	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
April 1, 2013 – April 30, 2013	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
June 1, 2012 – June 30, 2012	Maximum Contaminant Level Violation, Acute (TCR)	Coliform (TCR)	Health-based	Resolved
November 1, 2004 – November 30, 2004	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
September 1, 2004 – September 30, 2004	Maximum Contaminant Level Violation, Acute (TCR)	Coliform (TCR)	Health-based	Resolved
September 1, 2004 – September 30, 2004	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
August 1, 2003 – August 31, 2003	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
July 1, 2000 – July 31, 2000	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
January 1, 1997 – March 31, 1997	Monitoring, Regular	BHC-GAMMA	—	Resolved
January 1, 1997 – March 31, 1997	Monitoring, Regular	Picloram	—	Resolved
January 1, 1997 – March 31, 1997	Monitoring, Regular	Di(2-ethylhexyl) phthalate	—	Resolved
January 1, 1997 – March 31, 1997	Monitoring, Regular	Methoxychlor	—	Resolved
October 1, 1996 – October 31, 1996	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
January 1, 1996 – March 31, 1996	Monitoring, Regular	Atrazine	—	Resolved
January 1, 1996 – March 31, 1996	Monitoring, Regular	Simazine	—	Resolved
July 1, 1993 – July 31, 1993	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved

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

Enforcement actions

October 21, 2025State Violation/Reminder Notice1 linked violation
October 21, 2025State Public Notification requested1 linked violation
December 20, 2024State Violation/Reminder Notice1 linked violation
June 13, 2024State Compliance achieved4 linked violations
January 25, 2024State Violation/Reminder Notice1 linked violation
July 31, 2023State Compliance achieved1 linked violation
July 28, 2023State Public Notification requested1 linked violation
July 28, 2023State Violation/Reminder Notice1 linked violation
January 5, 2023State Violation/Reminder Notice1 linked violation
August 2, 2022State Public Notification received1 linked violation
July 28, 2022State Public Notification requested1 linked violation
July 28, 2022State Boil Water Order1 linked violation
July 28, 2022State Violation/Reminder Notice2 linked violations
July 28, 2022State Compliance achieved1 linked violation
January 21, 2020State Violation/Reminder Notice1 linked violation
February 26, 2015State Compliance achieved1 linked violation
January 29, 2015State Public Notification requested2 linked violations
June 13, 2013State Public Notification received3 linked violations
May 30, 2013State Compliance achieved1 linked violation
July 16, 2012State Public Notification received5 linked violations
July 3, 2012State Public Notification requested4 linked violations
June 26, 2012State Violation/Reminder Notice9 linked violations
November 2, 2004State Public Notification requested52 linked violations
August 15, 2003State Public Notification requested7 linked violations

Contact

MCKEE, KYLA M.

740-412-2479

COLUMBUS, OH 43201