Is DAYTON MUNICIPAL WATER SUPPLY required to publish a Consumer Confidence Report?

Yes. DAYTON MUNICIPAL WATER SUPPLY 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 MUNICIPAL WATER SUPPLY’s next Consumer Confidence Report due?

DAYTON MUNICIPAL WATER SUPPLY’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.

FORT DODGE, IA · Webster County

DAYTON MUNICIPAL WATER SUPPLY Water System

Consumer Confidence Report status

DAYTON MUNICIPAL WATER SUPPLY 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 MUNICIPAL WATER SUPPLY.

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 Iowa’s official records. Always confirm current status with Iowa before making decisions based on this information.

System facts

System ID (PWSID): IA9425011
System type: Community Water System
Population served: 772
Service connections: 358
Ownership: local government
Water source: groundwater (wells)

DAYTON MUNICIPAL WATER SUPPLY is one of 403 community water systems in Iowa in the 501 to 3,300 people size category, serving 772 people from groundwater.

As of August 1, 2026, its federal record holds 4 entries between 1979 and 2005, all of which EPA lists as closed. Nothing has been added since 2005.

None of the 4 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 and the Total Coliform Rules.

Violation history

Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
September 1, 2005 – September 30, 2005
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Fluoride
October 1, 1983 – September 30, 1984
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Fluoride
April 18, 1983 – May 17, 1983
Archived
Maximum Contaminant Level Violation, Average
Health-based
Fluoride
November 10, 1979 – November 9, 1980
Archived

Resolved 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
September 1, 2005 – September 30, 2005	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
October 1, 1983 – September 30, 1984	Maximum Contaminant Level Violation, Single Sample	Fluoride	Health-based	Archived
April 18, 1983 – May 17, 1983	Maximum Contaminant Level Violation, Single Sample	Fluoride	Health-based	Archived
November 10, 1979 – November 9, 1980	Maximum Contaminant Level Violation, Average	Fluoride	Health-based	Archived

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

February 13, 2025State Compliance achieved1 linked violation
February 13, 2025State Compliance achieved1 linked violation
January 16, 2025State Public Notification requested1 linked violation
January 16, 2025State Public Notification requested1 linked violation
January 16, 2025State Formal Notice of Violation issued1 linked violation
January 16, 2025State Formal Notice of Violation issued1 linked violation
December 15, 2016State Public Notification received3 linked violations
January 21, 2014State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
September 19, 2005State Public Notification requested6 linked violations
September 9, 2005State Violation/Reminder Notice5 linked violations
November 17, 1997State Compliance achieved5 linked violations
May 3, 1989State Compliance achievedgeneral compliance action — not tied to a specific violation on record
May 3, 1989State Compliance achieved1 linked violation
January 21, 1982State Unresolved1 linked violation

Common questions

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

DAYTON MUNICIPAL WATER SUPPLY

515-571-5070

FORT DODGE, IA 50501