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

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

HANFORD, 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.

HANFORD, CA · Kings County

HANFORD, CITY OF Water System

Consumer Confidence Report status

HANFORD, 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 HANFORD, 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): CA1610003
System type: Community Water System
Population served: 62,127
Service connections: 19,077
Ownership: local government
Water source: groundwater (wells)

HANFORD, CITY OF is one of 376 community water systems in California in the 10,001 to 100,000 people size category, serving 62,127 people from groundwater.

As of August 1, 2026, its federal record holds 76 entries between 1980 and 2020, all of which EPA lists as closed. Nothing has been added since 2020.

None of the 76 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 Stage 2 Disinfectants and Disinfection Byproducts Rule.

Violation history

Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2020 – September 30, 2020
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
July 1, 2009 – September 30, 2009
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
January 1, 2009 – March 31, 2009
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
April 1, 2008 – June 30, 2008
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
October 1, 2006 – December 31, 2006
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
October 1, 1990 – December 1, 1990
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
November 1, 1989 – November 30, 1989
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
October 1, 1989 – October 31, 1989
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
September 1, 1989 – September 30, 1989
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
August 1, 1989 – August 31, 1989
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
July 1, 1989 – July 31, 1989
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
June 1, 1989 – June 30, 1989
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
May 1, 1989 – May 31, 1989
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
April 1, 1989 – April 30, 1989
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
March 1, 1989 – March 31, 1989
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
February 1, 1989 – February 28, 1989
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
January 1, 1989 – January 31, 1989
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
December 1, 1988 – December 31, 1988
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
November 1, 1988 – November 30, 1988
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
October 1, 1988 – October 31, 1988
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
September 1, 1988 – September 30, 1988
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
August 1, 1988 – August 31, 1988
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
July 1, 1988 – July 31, 1988
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
April 1, 1988 – April 30, 1988
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
March 1, 1988 – March 31, 1988
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
February 1, 1988 – February 29, 1988
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
January 1, 1988 – January 31, 1988
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
November 1, 1987 – November 30, 1987
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
October 1, 1987 – October 31, 1987
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
August 1, 1987 – August 31, 1987
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
July 1, 1987 – July 31, 1987
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
June 1, 1987 – June 30, 1987
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
May 1, 1987 – May 31, 1987
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
April 1, 1987 – April 30, 1987
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
March 1, 1987 – March 31, 1987
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
February 1, 1987 – February 28, 1987
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
January 1, 1987 – January 31, 1987
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
June 1, 1986 – June 30, 1986
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
March 1, 1986 – March 31, 1986
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
December 1, 1985 – December 31, 1985
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
November 1, 1985 – November 30, 1985
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
October 1, 1985 – October 31, 1985
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
September 1, 1985 – September 30, 1985
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
August 1, 1985 – August 31, 1985
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
July 1, 1985 – July 31, 1985
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
March 1, 1985 – March 31, 1985
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
February 1, 1985 – February 28, 1985
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
January 1, 1985 – January 31, 1985
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
January 1, 1985 – December 31, 1985
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
December 1, 1984 – December 31, 1984
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
November 1, 1984 – November 30, 1984
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
October 1, 1984 – October 31, 1984
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
September 1, 1984 – September 30, 1984
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
August 1, 1984 – August 31, 1984
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
July 1, 1984 – July 31, 1984
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
June 1, 1984 – June 30, 1984
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
May 1, 1984 – May 31, 1984
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
April 1, 1984 – April 30, 1984
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
March 1, 1984 – March 31, 1984
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
February 1, 1984 – February 29, 1984
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
December 1, 1983 – December 31, 1983
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
October 1, 1983 – October 31, 1983
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
September 1, 1983 – September 30, 1983
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
August 1, 1983 – August 31, 1983
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
July 1, 1983 – July 31, 1983
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
June 1, 1983 – June 30, 1983
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
May 1, 1983 – May 31, 1983
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
April 1, 1983 – April 30, 1983
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
March 1, 1983 – March 31, 1983
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
February 1, 1983 – February 28, 1983
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
January 1, 1983 – January 31, 1983
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
December 1, 1982 – December 31, 1982
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
November 1, 1982 – November 30, 1982
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
October 1, 1982 – October 31, 1982
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
October 1, 1981 – September 30, 1982
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Arsenic
October 30, 1980 – October 29, 1981
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
July 1, 2020 – September 30, 2020	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
July 1, 2009 – September 30, 2009	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
January 1, 2009 – March 31, 2009	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
April 1, 2008 – June 30, 2008	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
October 1, 2006 – December 31, 2006	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
October 1, 1990 – December 1, 1990	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
November 1, 1989 – November 30, 1989	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
October 1, 1989 – October 31, 1989	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
September 1, 1989 – September 30, 1989	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
August 1, 1989 – August 31, 1989	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
July 1, 1989 – July 31, 1989	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
June 1, 1989 – June 30, 1989	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
May 1, 1989 – May 31, 1989	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
April 1, 1989 – April 30, 1989	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
March 1, 1989 – March 31, 1989	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
February 1, 1989 – February 28, 1989	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
January 1, 1989 – January 31, 1989	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
December 1, 1988 – December 31, 1988	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
November 1, 1988 – November 30, 1988	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
October 1, 1988 – October 31, 1988	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
September 1, 1988 – September 30, 1988	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
August 1, 1988 – August 31, 1988	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
July 1, 1988 – July 31, 1988	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
April 1, 1988 – April 30, 1988	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
March 1, 1988 – March 31, 1988	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
February 1, 1988 – February 29, 1988	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
January 1, 1988 – January 31, 1988	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
November 1, 1987 – November 30, 1987	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
October 1, 1987 – October 31, 1987	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
August 1, 1987 – August 31, 1987	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
July 1, 1987 – July 31, 1987	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
June 1, 1987 – June 30, 1987	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
May 1, 1987 – May 31, 1987	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
April 1, 1987 – April 30, 1987	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
March 1, 1987 – March 31, 1987	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
February 1, 1987 – February 28, 1987	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
January 1, 1987 – January 31, 1987	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
June 1, 1986 – June 30, 1986	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
March 1, 1986 – March 31, 1986	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
December 1, 1985 – December 31, 1985	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
November 1, 1985 – November 30, 1985	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
October 1, 1985 – October 31, 1985	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
September 1, 1985 – September 30, 1985	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
August 1, 1985 – August 31, 1985	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
July 1, 1985 – July 31, 1985	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
March 1, 1985 – March 31, 1985	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
February 1, 1985 – February 28, 1985	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
January 1, 1985 – January 31, 1985	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
January 1, 1985 – December 31, 1985	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
December 1, 1984 – December 31, 1984	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
November 1, 1984 – November 30, 1984	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
October 1, 1984 – October 31, 1984	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
September 1, 1984 – September 30, 1984	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
August 1, 1984 – August 31, 1984	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
July 1, 1984 – July 31, 1984	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
June 1, 1984 – June 30, 1984	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
May 1, 1984 – May 31, 1984	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
April 1, 1984 – April 30, 1984	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
March 1, 1984 – March 31, 1984	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
February 1, 1984 – February 29, 1984	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
December 1, 1983 – December 31, 1983	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
October 1, 1983 – October 31, 1983	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
September 1, 1983 – September 30, 1983	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
August 1, 1983 – August 31, 1983	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
July 1, 1983 – July 31, 1983	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
June 1, 1983 – June 30, 1983	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
May 1, 1983 – May 31, 1983	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
April 1, 1983 – April 30, 1983	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
March 1, 1983 – March 31, 1983	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
February 1, 1983 – February 28, 1983	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
January 1, 1983 – January 31, 1983	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
December 1, 1982 – December 31, 1982	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
November 1, 1982 – November 30, 1982	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
October 1, 1982 – October 31, 1982	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
October 1, 1981 – September 30, 1982	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved
October 30, 1980 – October 29, 1981	Maximum Contaminant Level Violation, Single Sample	Arsenic	Health-based	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

August 8, 2024State Compliance achieved9 linked violations
March 12, 2018State Compliance achieved18 linked violations
July 19, 2013State Compliance achieved55 linked violations
March 9, 2011Federal Compliance achieved98 linked violations
September 13, 2006Federal Final Administrative Order issued97 linked violations
September 30, 1987State Site Visit for enforcement purposes210 linked violations
December 22, 1986State Administrative/Compliance Order without penalty issued5 linked violations
December 22, 1986State Administrative/Compliance Order without penalty issued3 linked violations
September 30, 1986State Other6 linked violations
July 3, 1986State Administrative/Compliance Order without penalty issued1 linked violation

Common questions

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

SENTENO, FRANK

559-585-2567

HANFORD, CA 93230