Public Water Partners

DELPHOS, OH · Allen County

DELPHOS CITY Water System

Consumer Confidence Report status

DELPHOS CITY must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.

As of August 1, 2026, EPA's federal records show no open violations for DELPHOS CITY.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 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)

DELPHOS CITY is one of 192 community water systems in Ohio in the 3,301 to 10,000 people size category, serving 7,101 people from surface water.

As of August 1, 2026, its federal record holds 29 entries between 1997 and 2025, all of which EPA lists as closed.

Of the 29, 24 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves volatile organic chemicals, synthetic organic chemicals, and the Surface Water Treatment Rules.

Violation history

  • Notification, Known or Potential LSL

    —

    LEAD AND COPPER RULE REVISIONS

    July 2, 2025 – November 12, 2025

    Resolved

  • 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)

    August 1, 2004 – August 31, 2004

    Resolved

  • Consumer Confidence Report Inadequate Reporting

    —

    Consumer Confidence Rule

    July 1, 2003 – June 12, 2007

    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

  • Monitoring, Regular

    —

    DICHLOROMETHANE

    January 1, 1997 – April 8, 1997

    Resolved

  • Monitoring, Regular

    —

    Vinyl chloride

    January 1, 1997 – April 8, 1997

    Resolved

  • Monitoring, Regular

    —

    Carbofuran

    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

    —

    1,2-Dichloroethane

    January 1, 1997 – April 8, 1997

    Resolved

  • Monitoring, Regular

    —

    Endothall

    January 1, 1997 – March 31, 1997

    Resolved

  • Monitoring, Regular

    —

    Diquat

    January 1, 1997 – March 31, 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

Resolved addressed and confirmed by the state

Enforcement actions

Common questions

Is DELPHOS CITY required to publish a Consumer Confidence Report?

Yes. DELPHOS CITY is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.

When is DELPHOS CITY’s next Consumer Confidence Report due?

DELPHOS CITY’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

Does DELPHOS CITY have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show no open violations for DELPHOS CITY.

What is a Consumer Confidence Report?

A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

Contact

GEORGE, SHERRYL

419-695-4010

DELPHOS, OH 45833