DELPHOS, OH · Allen County

DELPHOS CITY 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): OH0200412
System type: Community Water System
Population served: 7,101
Service connections: 2,750
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Notification, Known or Potential LSL
—
LEAD AND COPPER RULE REVISIONS
July 2, 2025
Unaddressed
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
October 1, 2007 – October 31, 2007
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
October 1, 2007 – October 31, 2007
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
July 1, 2006 – June 12, 2007
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
November 1, 2004 – November 30, 2004
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
August 1, 2004 – August 31, 2004
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
July 1, 2003 – June 12, 2007
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 1997 – April 8, 1997
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 1997 – April 8, 1997
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 1997 – April 8, 1997
Resolved
Monitoring, Regular
—
Diquat
January 1, 1997 – March 31, 1997
Resolved
Monitoring, Regular
—
Ethylbenzene
January 1, 1997 – April 8, 1997
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 1997 – April 8, 1997
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 1997 – April 8, 1997
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 1997 – April 8, 1997
Resolved
Monitoring, Regular
—
Toluene
January 1, 1997 – April 8, 1997
Resolved
Monitoring, Regular
—
Styrene
January 1, 1997 – April 8, 1997
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 1997 – April 8, 1997
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 1997 – April 8, 1997
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 1997 – April 8, 1997
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 1997 – April 8, 1997
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 1997 – April 8, 1997
Resolved
Monitoring, Regular
—
Tetrachloroethylene
January 1, 1997 – April 8, 1997
Resolved
Monitoring, Regular
—
Xylenes, Total
January 1, 1997 – April 8, 1997
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 1997 – April 8, 1997
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 1997 – April 8, 1997
Resolved
Monitoring, Regular
—
CHLOROBENZENE
January 1, 1997 – April 8, 1997
Resolved
Monitoring, Regular
—
Benzene
January 1, 1997 – April 8, 1997
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 1997 – April 8, 1997
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
October 1, 2007 – October 31, 2007	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
October 1, 2007 – October 31, 2007	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
July 1, 2006 – June 12, 2007	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
November 1, 2004 – November 30, 2004	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
August 1, 2004 – August 31, 2004	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
July 1, 2003 – June 12, 2007	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
January 1, 1997 – April 8, 1997	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 1997 – April 8, 1997	Monitoring, Regular	Vinyl chloride	—	Resolved
January 1, 1997 – April 8, 1997	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 1997 – March 31, 1997	Monitoring, Regular	Diquat	—	Resolved
January 1, 1997 – April 8, 1997	Monitoring, Regular	Ethylbenzene	—	Resolved
January 1, 1997 – April 8, 1997	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 1997 – April 8, 1997	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 1997 – April 8, 1997	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 1997 – April 8, 1997	Monitoring, Regular	Toluene	—	Resolved
January 1, 1997 – April 8, 1997	Monitoring, Regular	Styrene	—	Resolved
January 1, 1997 – April 8, 1997	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
January 1, 1997 – April 8, 1997	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
January 1, 1997 – April 8, 1997	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 1997 – April 8, 1997	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 1997 – April 8, 1997	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 1997 – April 8, 1997	Monitoring, Regular	Tetrachloroethylene	—	Resolved
January 1, 1997 – April 8, 1997	Monitoring, Regular	Xylenes, Total	—	Resolved
January 1, 1997 – April 8, 1997	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
January 1, 1997 – April 8, 1997	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
January 1, 1997 – April 8, 1997	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 1997 – April 8, 1997	Monitoring, Regular	Benzene	—	Resolved
January 1, 1997 – April 8, 1997	Monitoring, Regular	1,2,4-Trichlorobenzene	—	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
February 8, 2008State Compliance achieved10 linked violations
November 19, 2007State Violation/Reminder Notice2 linked violations
July 30, 1981State Public Notification received1 linked violation

Contact

GEORGE, SHERRYL

419-695-4010

DELPHOS, OH 45833