Is COLUMBUS PUBLIC WATER SYSTEM required to publish a Consumer Confidence Report?

Yes. COLUMBUS PUBLIC WATER SYSTEM 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 COLUMBUS PUBLIC WATER SYSTEM’s next Consumer Confidence Report due?

COLUMBUS PUBLIC WATER SYSTEM’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

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.

COLUMBUS, OH · Franklin County

COLUMBUS PUBLIC WATER SYSTEM Water System

Consumer Confidence Report status

COLUMBUS PUBLIC WATER SYSTEM 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 COLUMBUS PUBLIC WATER SYSTEM.

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): OH2504412
System type: Community Water System
Population served: 1,305,946
Service connections: 287,233
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

COLUMBUS PUBLIC WATER SYSTEM is the second largest community water system in Ohio, serving 1,305,946 people from surface water.

As of August 1, 2026, its federal record holds 5 entries between 1993 and 2016, all of which EPA lists as closed. Nothing has been added since 2016.

None of the 5 are monitoring or reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset; these involve water-quality, treatment, or public-notice findings instead. The record involves inorganic chemicals, the Total Coliform Rules, and the Surface Water Treatment Rules.

Violation history

Maximum Contaminant Level Violation, Average
Health-based
Nitrate
June 1, 2016 – June 30, 2016
Resolved
Failure to Consult with State
—
Long Term 2 Enhanced Surface Water Treatment Rule
June 12, 2012 – June 20, 2012
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Nitrate
June 1, 2000 – June 30, 2000
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
September 1, 1993 – September 30, 1993
Resolved
Maximum Contaminant Level Violation, Acute (TCR)
Health-based
Coliform (TCR)
September 1, 1993 – September 30, 1993
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
June 1, 2016 – June 30, 2016	Maximum Contaminant Level Violation, Average	Nitrate	Health-based	Resolved
June 12, 2012 – June 20, 2012	Failure to Consult with State	Long Term 2 Enhanced Surface Water Treatment Rule	—	Resolved
June 1, 2000 – June 30, 2000	Maximum Contaminant Level Violation, Average	Nitrate	Health-based	Resolved
September 1, 1993 – September 30, 1993	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
September 1, 1993 – September 30, 1993	Maximum Contaminant Level Violation, Acute (TCR)	Coliform (TCR)	Health-based	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

November 1, 2016State Compliance achieved1 linked violation
July 8, 2016State Public Notification received1 linked violation
June 30, 2016State Public Notification requested1 linked violation
June 30, 2016State Violation/Reminder Notice1 linked violation
June 17, 2015State Compliance achieved2 linked violations
June 9, 2015State Public Notification requested2 linked violations
March 29, 2007State Compliance achieved6 linked violations
July 2, 1998State Violation/Reminder Notice1 linked violation
June 24, 1998State Compliance achieved1 linked violation
June 18, 1998State Public Notification received1 linked violation

Common questions

Is COLUMBUS PUBLIC WATER SYSTEM required to publish a Consumer Confidence Report?: Yes. COLUMBUS PUBLIC WATER SYSTEM 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 COLUMBUS PUBLIC WATER SYSTEM’s next Consumer Confidence Report due?: COLUMBUS PUBLIC WATER SYSTEM’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does COLUMBUS PUBLIC WATER SYSTEM have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show no open violations for COLUMBUS PUBLIC WATER SYSTEM.
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

NEWSOME, JOHN G

614-645-8460

COLUMBUS, OH 43215