Is DINUBA, CITY OF required to publish a Consumer Confidence Report?

Yes. DINUBA, CITY OF 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 DINUBA, CITY OF’s next Consumer Confidence Report due?

DINUBA, CITY OF’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.

DINUBA, CA · Tulare County

DINUBA, CITY OF Water System

Consumer Confidence Report status

DINUBA, CITY OF 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 DINUBA, CITY OF.

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

System facts

System ID (PWSID): CA5410002
System type: Community Water System
Population served: 27,281
Service connections: 6,621
Ownership: local government
Water source: groundwater (wells)

DINUBA, CITY OF is one of 376 community water systems in California in the 10,001 to 100,000 people size category, serving 27,281 people from groundwater.

As of August 1, 2026, its federal record holds 5 entries between 1987 and 2009, all of which EPA lists as closed. Nothing has been added since 2009.

Of the 5, 1 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 Total Coliform Rules, the Stage 1 Disinfectants and Disinfection Byproducts Rule, and synthetic organic chemicals.

Violation history

Monitoring and Reporting (DBP)
—
TTHM
January 1, 2009 – December 31, 2009
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
June 1, 2006 – June 30, 2006
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
March 1, 2004 – March 31, 2004
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
April 1, 2001 – April 30, 2001
Resolved
Maximum Contaminant Level Violation, Average
Health-based
1,2-DIBROMO-3-CHLOROPROPANE
April 28, 1987 – May 7, 1990
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
January 1, 2009 – December 31, 2009	Monitoring and Reporting (DBP)	TTHM	—	Resolved
June 1, 2006 – June 30, 2006	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
March 1, 2004 – March 31, 2004	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
April 1, 2001 – April 30, 2001	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
April 28, 1987 – May 7, 1990	Maximum Contaminant Level Violation, Average	1,2-DIBROMO-3-CHLOROPROPANE	Health-based	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

May 13, 2005State Administrative/Compliance Order without penalty issued4 linked violations
August 31, 1998State Compliance achieved16 linked violations

Common questions

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

VASQUEZ, LESLI

559-591-5924

DINUBA, CA 93618