Public Water Partners

ONTARIO, OH · Richland County

ONTARIO CITY Water System

Consumer Confidence Report status

ONTARIO 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 1 item for ONTARIO CITY that is open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.

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)
OH7003512
System type
Community Water System
Population served
6,756
Service connections
2,769
Ownership
local government
Water source
groundwater (wells)

ONTARIO CITY is one of 192 community water systems in Ohio in the 3,301 to 10,000 people size category, serving 6,756 people from groundwater.

As of August 1, 2026, its federal record holds 18 entries between 1995 and 2025, of which 1 remains open; none are health-based.

Of the 18, 16 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 inorganic chemicals, the Consumer Confidence Rule, and the Lead and Copper Rule.

Violation history

  • Notification, Known or Potential LSL

    —

    LEAD AND COPPER RULE REVISIONS

    July 2, 2025 – November 12, 2025

    Resolved

  • Consumer Confidence Report Inadequate Reporting

    —

    Consumer Confidence Rule

    December 13, 2018

    Unaddressed

  • Consumer Confidence Report Inadequate Reporting

    —

    Consumer Confidence Rule

    July 1, 2002 – July 9, 2007

    Resolved

  • Monitoring, Routine Minor (TCR)

    —

    Coliform (TCR)

    January 1, 1998 – January 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Chromium

    January 1, 1995 – June 30, 1995

    Resolved

  • Monitoring, Regular

    —

    CYANIDE

    January 1, 1995 – June 30, 1995

    Resolved

  • Monitoring, Regular

    —

    Fluoride

    January 1, 1995 – June 30, 1995

    Resolved

  • Monitoring, Regular

    —

    Mercury

    January 1, 1995 – June 30, 1995

    Resolved

  • Monitoring, Regular

    —

    Nickel

    January 1, 1995 – June 30, 1995

    Resolved

  • Monitoring, Regular

    —

    Asbestos

    January 1, 1995 – June 30, 1995

    Resolved

  • Monitoring, Regular

    —

    Antimony, Total

    January 1, 1995 – June 30, 1995

    Resolved

  • Monitoring, Regular

    —

    Beryllium, Total

    January 1, 1995 – June 30, 1995

    Resolved

  • Monitoring, Regular

    —

    Thallium, Total

    January 1, 1995 – June 30, 1995

    Resolved

  • Monitoring, Regular

    —

    Gross Alpha, Excl. Radon and U

    January 1, 1995 – June 30, 1995

    Resolved

  • Monitoring, Regular

    —

    Selenium

    January 1, 1995 – June 30, 1995

    Resolved

  • Monitoring, Regular

    —

    Arsenic

    January 1, 1995 – June 30, 1995

    Resolved

  • Monitoring, Regular

    —

    Barium

    January 1, 1995 – June 30, 1995

    Resolved

  • Monitoring, Regular

    —

    Cadmium

    January 1, 1995 – June 30, 1995

    Resolved

Resolved addressed and confirmed by the stateUnaddressed no corrective action on record yet

Enforcement actions

Common questions

Is ONTARIO CITY required to publish a Consumer Confidence Report?

Yes. ONTARIO 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 ONTARIO CITY’s next Consumer Confidence Report due?

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

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

As of August 1, 2026, EPA's federal records show 1 item for ONTARIO CITY that is open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.

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

MORTON, MICHAEL

567-437-5830

ONTARIO, OH 44906