DELAWARE, OH · Delaware County

DELAWARE 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): OH2100311
System type: Community Water System
Population served: 43,895
Service connections: 15,708
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
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2014 – June 30, 2014
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2014 – March 31, 2014
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2013 – December 31, 2013
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
February 1, 2009 – February 28, 2009
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate
January 1, 1989 – January 31, 1989
Archived

Unaddressed no corrective action on record yetResolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Period	Violation	Contaminant / rule	Health-based	Status
July 2, 2025	Notification, Known or Potential LSL	LEAD AND COPPER RULE REVISIONS	—	Unaddressed
April 1, 2014 – June 30, 2014	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2014 – March 31, 2014	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2013 – December 31, 2013	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
February 1, 2009 – February 28, 2009	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
January 1, 1989 – January 31, 1989	Maximum Contaminant Level Violation, Single Sample	Nitrate	Health-based	Archived

Unaddressed no corrective action on record yetResolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

January 17, 1989State Public Notification received2 linked violations
January 16, 1989State Violation/Reminder Notice1 linked violation
January 13, 1988State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record

Contact

HINSON, THOMAS

740-203-1926

DELAWARE, OH 43015