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

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

DELANO, 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.

DELANO, CA · Kern County

DELANO, CITY OF Water System

Consumer Confidence Report status

DELANO, 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 DELANO, 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): CA1510005
System type: Community Water System
Population served: 51,428
Service connections: 10,295
Ownership: local government
Water source: groundwater (wells)

DELANO, CITY OF is one of 376 community water systems in California in the 10,001 to 100,000 people size category, serving 51,428 people from groundwater.

As of August 1, 2026, its federal record holds 14 entries between 1980 and 2012, all of which EPA lists as closed. Nothing has been added since 2012.

None of the 14 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, Average
Health-based
Arsenic
July 1, 2012 – September 30, 2012
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
April 1, 2011 – June 30, 2011
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
July 1, 1992 – July 31, 1992
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate
June 1, 1983 – June 30, 1983
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate
May 1, 1983 – May 31, 1983
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate
April 1, 1983 – April 30, 1983
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate
March 1, 1983 – March 31, 1983
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate
February 1, 1983 – February 28, 1983
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate
January 1, 1983 – January 31, 1983
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate
December 1, 1982 – December 31, 1982
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate
November 1, 1982 – November 30, 1982
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate
October 1, 1982 – October 31, 1982
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate
October 1, 1981 – September 30, 1982
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate
October 1, 1980 – September 30, 1981
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
July 1, 2012 – September 30, 2012	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
April 1, 2011 – June 30, 2011	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
July 1, 1992 – July 31, 1992	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
June 1, 1983 – June 30, 1983	Maximum Contaminant Level Violation, Single Sample	Nitrate	Health-based	Archived
May 1, 1983 – May 31, 1983	Maximum Contaminant Level Violation, Single Sample	Nitrate	Health-based	Archived
April 1, 1983 – April 30, 1983	Maximum Contaminant Level Violation, Single Sample	Nitrate	Health-based	Archived
March 1, 1983 – March 31, 1983	Maximum Contaminant Level Violation, Single Sample	Nitrate	Health-based	Archived
February 1, 1983 – February 28, 1983	Maximum Contaminant Level Violation, Single Sample	Nitrate	Health-based	Archived
January 1, 1983 – January 31, 1983	Maximum Contaminant Level Violation, Single Sample	Nitrate	Health-based	Archived
December 1, 1982 – December 31, 1982	Maximum Contaminant Level Violation, Single Sample	Nitrate	Health-based	Archived
November 1, 1982 – November 30, 1982	Maximum Contaminant Level Violation, Single Sample	Nitrate	Health-based	Archived
October 1, 1982 – October 31, 1982	Maximum Contaminant Level Violation, Single Sample	Nitrate	Health-based	Archived
October 1, 1981 – September 30, 1982	Maximum Contaminant Level Violation, Single Sample	Nitrate	Health-based	Archived
October 1, 1980 – September 30, 1981	Maximum Contaminant Level Violation, Single Sample	Nitrate	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

September 25, 2008Federal Final Administrative Order issued27 linked violations

Common questions

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

NUNEZ, PEDRO

661-720-5404

DELANO, CA 93215