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

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

DAYTON 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.

DAYTON, OH · Montgomery County

DAYTON PUBLIC WATER SYSTEM Water System

Consumer Confidence Report status

DAYTON 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 DAYTON 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): OH5703512
System type: Community Water System
Population served: 141,407
Service connections: 50,351
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

DAYTON PUBLIC WATER SYSTEM is among the 18 largest community water systems in Ohio, serving 141,407 people from surface water.

As of August 1, 2026, its federal record holds 11 entries between 1992 and 2009, all of which EPA lists as closed. Nothing has been added since 2009.

Of the 11, 7 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 the Surface Water Treatment Rules, synthetic organic chemicals, and the Total Coliform Rules.

Violation history

Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
May 1, 2009 – May 31, 2009
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
January 1, 2005 – January 31, 2005
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
December 1, 2004 – December 31, 2004
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
July 1, 2003 – July 31, 2003
Resolved
Monitoring, Regular
—
Atrazine
May 1, 2002 – July 31, 2002
Resolved
Monitoring, Regular
—
Simazine
May 1, 2002 – July 31, 2002
Resolved
Monitoring, Regular
—
Atrazine
May 1, 2001 – July 31, 2001
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2000 – July 10, 2000
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
July 1, 1994 – December 31, 1994
Resolved
Maximum Contaminant Level Violation, Acute (TCR)
Health-based
Coliform (TCR)
September 1, 1992 – September 30, 1992
Resolved
Maximum Contaminant Level Violation, Acute (TCR)
Health-based
Coliform (TCR)
July 1, 1992 – July 31, 1992
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
May 1, 2009 – May 31, 2009	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
January 1, 2005 – January 31, 2005	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
December 1, 2004 – December 31, 2004	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
July 1, 2003 – July 31, 2003	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
May 1, 2002 – July 31, 2002	Monitoring, Regular	Atrazine	—	Resolved
May 1, 2002 – July 31, 2002	Monitoring, Regular	Simazine	—	Resolved
May 1, 2001 – July 31, 2001	Monitoring, Regular	Atrazine	—	Resolved
July 1, 2000 – July 10, 2000	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 1994 – December 31, 1994	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
September 1, 1992 – September 30, 1992	Maximum Contaminant Level Violation, Acute (TCR)	Coliform (TCR)	Health-based	Resolved
July 1, 1992 – July 31, 1992	Maximum Contaminant Level Violation, Acute (TCR)	Coliform (TCR)	Health-based	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

June 11, 2009State Violation/Reminder Notice11 linked violations
November 7, 2003State Public Notification received15 linked violations
August 20, 2002State Public Notification requested418 linked violations

Common questions

Is DAYTON PUBLIC WATER SYSTEM required to publish a Consumer Confidence Report?: Yes. DAYTON 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 DAYTON PUBLIC WATER SYSTEM’s next Consumer Confidence Report due?: DAYTON PUBLIC WATER SYSTEM’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does DAYTON 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 DAYTON 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

BAYLESS, MIYAH

937-333-6099

DAYTON, OH 45414