Public water system record

City of Avenal

Serves Avenal, Kings County, CA · 13,696 people served

Federal records show 6 health-based violations and 1 monitoring/reporting issue for City of Avenal in the last ten years, including an unresolved LEAD AND COPPER RULE REVISIONS violation.

CA1610002
AVENAL
CA
13,696 served

System profile

Source water Surface water

ZIP 93204

EPA system ID CA1610002

Verify this system on EPA ECHO →

Health-based violations, last 10 years: 6
Resolved: 0
Unresolved: 1
Archived by EPA: 5
Any acute record: No
Monitoring issues, last 10 years: 1

Key facts

City of Avenal draws water from 1 surface water intake.
Highest measured level in the last 10 years: Total Trihalomethanes (TTHMs), 0.091 mg/L, federal limit 0.08 mg/L (1.1 times the limit), 2021.
Most recent formal enforcement: compliance order (no penalty) by California, March 2022.
Record on file since 1992, with 29 health-based violations before October 19, 2016.

Check whether City of Avenal serves your address

Health-based violations

Since October 2016

Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.

Contaminant	Rule family	Start date	Status	Acute
LEAD AND COPPER RULE REVISIONS Treatment technique failure	350	Oct 17, 2024	Active	No
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.081 mg/L, federal limit 0.08 mg/L (at or just above the limit)	220	Oct 1, 2022	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.	No
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.085 mg/L, federal limit 0.08 mg/L (1.1 times the limit)	220	Apr 1, 2022	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.	No
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.088 mg/L, federal limit 0.08 mg/L (1.1 times the limit)	220	Jan 1, 2022	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.	No
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.084 mg/L, federal limit 0.08 mg/L (1.1 times the limit)	220	Oct 1, 2021	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.	No
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.091 mg/L, federal limit 0.08 mg/L (1.1 times the limit)	220	Jul 1, 2021	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.	No

Monitoring and reporting issues

Since October 2016

Missed tests or reports, not contaminants found above a limit.

Issue	Start date	Status
LEAD AND COPPER RULE REVISIONS RPT	Oct 17, 2024	Active

Full record since 1992

EPA's records for City of Avenal go back to 1992. Before October 19, 2016 they list 29 health-based violations (29 resolved) and 4 monitoring or reporting violations.

Violations that began in	Health-based	Monitoring and reporting
1990s	2	0
2000s	12	3
2010 to October 18, 2016	15	1
2020s	6	1

Most recent health-based violation before October 19, 2016: Total Trihalomethanes (TTHMs), began July 2016, Resolved.

Show all 29 health-based violations before October 19, 2016

Contaminant	Start date	Status
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.093 mg/L, federal limit 0.08 mg/L (1.2 times the limit)	Jul 1, 2016	Resolved
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.104 mg/L, federal limit 0.08 mg/L (1.3 times the limit)	Apr 1, 2016	Resolved
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.11 mg/L, federal limit 0.08 mg/L (1.4 times the limit)	Jan 1, 2016	Resolved
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.112 mg/L, federal limit 0.08 mg/L (1.4 times the limit)	Oct 1, 2015	Resolved
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.11 mg/L, federal limit 0.08 mg/L (1.4 times the limit)	Jul 1, 2015	Resolved
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.105 mg/L, federal limit 0.08 mg/L (1.3 times the limit)	Apr 1, 2015	Resolved
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.112 mg/L, federal limit 0.08 mg/L (1.4 times the limit)	Jan 1, 2015	Resolved
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.108 mg/L, federal limit 0.08 mg/L (1.4 times the limit)	Oct 1, 2014	Resolved
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.0955 mg/L, federal limit 0.08 mg/L (1.2 times the limit)	Jul 1, 2014	Resolved
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.089 mg/L, federal limit 0.08 mg/L (1.1 times the limit)	Jan 1, 2011	Resolved
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.096 mg/L, federal limit 0.08 mg/L (1.2 times the limit)	Oct 1, 2010	Resolved
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.095 mg/L, federal limit 0.08 mg/L (1.2 times the limit)	Jul 1, 2010	Resolved
Haloacetic Acids (HAA5) Contaminant limit exceeded Measured 0.079 mg/L, federal limit 0.06 mg/L (1.3 times the limit)	Apr 1, 2010	Resolved
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.11 mg/L, federal limit 0.08 mg/L (1.4 times the limit)	Apr 1, 2010	Resolved
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.129 mg/L, federal limit 0.08 mg/L (1.6 times the limit)	Jan 1, 2010	Resolved
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.1365 mg/L, federal limit 0.08 mg/L (1.7 times the limit)	Oct 1, 2009	Resolved
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.1379 mg/L, federal limit 0.08 mg/L (1.7 times the limit)	Jul 1, 2009	Resolved
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.1287 mg/L, federal limit 0.08 mg/L (1.6 times the limit)	Apr 1, 2009	Resolved
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.1014 mg/L, federal limit 0.08 mg/L (1.3 times the limit)	Jan 1, 2009	Resolved
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.0906 mg/L, federal limit 0.08 mg/L (1.1 times the limit)	Oct 1, 2008	Resolved
Total Coliform Contaminant limit exceeded	Oct 1, 2005	Resolved
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.0803 mg/L, federal limit 0.08 mg/L (at or just above the limit)	Apr 1, 2005	Resolved
Total Coliform Contaminant limit exceeded	Apr 1, 2005	Resolved
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.081 mg/L, federal limit 0.08 mg/L (at or just above the limit)	Apr 1, 2003	Resolved
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.98 mg/L, federal limit 0.08 mg/L (12 times the limit)	Jan 1, 2003	Resolved
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.095 mg/L, federal limit 0.08 mg/L (1.2 times the limit)	Oct 1, 2002	Resolved
Total Coliform Contaminant limit exceeded	Apr 1, 2000	Resolved
Surface Water Treatment Rule Treatment technique failure	Jan 1, 1995	Resolved
Total Trihalomethanes (TTHMs) Contaminant limit exceeded	Dec 31, 1992	Resolved

Enforcement actions

California regulators and EPA took 9 formal enforcement actions against City of Avenal between 1993 and 2022. The most recent was a compliance order (no penalty) in March 2022.

Date	By	Action	Violations covered
Mar 14, 2022	California	Compliance order (no penalty)	5 violations (5 health-based): Total Trihalomethanes (TTHMs)
May 18, 2015	California	Compliance order (no penalty)	9 violations (9 health-based): Total Trihalomethanes (TTHMs)
Mar 25, 2011	EPA	Compliance order (no penalty)	24 violations (24 health-based): Total Trihalomethanes (TTHMs)
Dec 19, 2005	California	Compliance order (no penalty)	1 violation (1 health-based): Total Coliform
Jun 28, 2005	California	Compliance order (no penalty)	1 violation (1 health-based): Total Coliform
Jun 26, 2003	California	Compliance order (no penalty)	3 violations (3 health-based): Total Trihalomethanes (TTHMs)
May 14, 2002	California	Compliance order (no penalty)	1 violation: Consumer Confidence Rule
Jun 7, 2000	California	Compliance order (no penalty)	1 violation (1 health-based): Total Coliform
Mar 18, 1993	California	Compliance order (no penalty)	1 violation (1 health-based): Total Trihalomethanes (TTHMs)

What the violations mean

Total Trihalomethanes (TTHMs)

5 incidents

Disinfection byproduct levels exceeded the federal limit

Long-term TTHM exposure may increase bladder cancer risk

LEAD AND COPPER RULE REVISIONS

1 incident

The system did not complete a treatment step or action that the LEAD AND COPPER RULE REVISIONS requires (a treatment technique violation).

The utility had to notify customers about this violation.

Where the water comes from

City of Avenal draws water from 1 surface water intake.

Annual water quality report

City of Avenal must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.

Systems serving 10,000 or more people must mail or deliver the report to every customer, and from 2027 they must send it twice a year.

Find a posted report with EPA's Consumer Confidence Report search

Testing your own water

To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by California.

Certified drinking water labs by state EPA guidance for private wells