Public water system record

City of Westmorland

Serves Westmorland, Imperial County, CA · 2,202 people served

Federal records show 5 health-based violations and 2 monitoring/reporting issues for City of Westmorland in the last ten years, including an unresolved LEAD AND COPPER RULE REVISIONS violation.

CA1310008
WESTMORLAND
CA
2,202 served

System profile

Source water Purchased surface water

ZIP 92281

EPA system ID CA1310008

Verify this system on EPA ECHO →

Health-based violations, last 10 years: 5
Resolved: 3
Unresolved: 1
Archived by EPA: 1
Any acute record: No
Monitoring issues, last 10 years: 2

Key facts

City of Westmorland buys its water from Imperial Irrigation District.
Highest measured level in the last 10 years: Total Trihalomethanes (TTHMs), 0.087 mg/L, federal limit 0.08 mg/L (1.1 times the limit), 2017.
Most recent formal enforcement: compliance order (no penalty) by California, June 2024.
Record on file since 1993, with 15 health-based violations before October 19, 2016.

Check whether City of Westmorland 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 0.082 mg/L, federal limit 0.08 mg/L (at or just above the limit)	220	Oct 1, 2023	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 0.082 mg/L, federal limit 0.08 mg/L (at or just above the limit)	220	Jul 1, 2017	Resolved	No
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.087 mg/L, federal limit 0.08 mg/L (1.1 times the limit)	220	Apr 1, 2017	Resolved	No
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.083 mg/L, federal limit 0.08 mg/L (at or just above the limit)	220	Jan 1, 2017	Resolved	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
Lead and Copper Rule Monitoring and reporting	Oct 1, 2023	Resolved

Full record since 1993

EPA's records for City of Westmorland go back to 1993. Before October 19, 2016 they list 15 health-based violations (15 resolved) and 2 monitoring or reporting violations.

Violations that began in	Health-based	Monitoring and reporting
1990s	3	1
2000s	6	0
2010 to October 18, 2016	6	1
October 19, 2016 to 2019	3	0
2020s	2	2

Most recent health-based violation before October 19, 2016: Interim Enhanced Surface Water Treatment Rule (acute), began July 2012, Resolved.

Show all 15 health-based violations before October 19, 2016

Contaminant	Start date	Status
Interim Enhanced Surface Water Treatment Rule (acute) Treatment technique failure	Jul 1, 2012	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, 2012	Resolved
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.0837 mg/L, federal limit 0.08 mg/L (at or just above the limit)	Jan 1, 2012	Resolved
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.0895 mg/L, federal limit 0.08 mg/L (1.1 times the limit)	Oct 1, 2011	Resolved
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.0826 mg/L, federal limit 0.08 mg/L (at or just above the limit)	Jul 1, 2011	Resolved
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.0835 mg/L, federal limit 0.08 mg/L (at or just above the limit)	Apr 1, 2011	Resolved
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.0805 mg/L, federal limit 0.08 mg/L (at or just above the limit)	Oct 1, 2009	Resolved
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.0805 mg/L, federal limit 0.08 mg/L (at or just above the limit)	Apr 1, 2009	Resolved
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.084 mg/L, federal limit 0.08 mg/L (1.1 times the limit)	Jan 1, 2009	Resolved
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.082 mg/L, federal limit 0.08 mg/L (at or just above the limit)	Oct 1, 2008	Resolved
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.084 mg/L, federal limit 0.08 mg/L (1.1 times the limit)	Jul 1, 2008	Resolved
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.084 mg/L, federal limit 0.08 mg/L (1.1 times the limit)	Apr 1, 2008	Resolved
Surface Water Treatment Rule Treatment technique failure	Nov 1, 1999	Resolved
Surface Water Treatment Rule Treatment technique failure	Dec 1, 1995	Resolved
Surface Water Treatment Rule Treatment technique failure	Jul 1, 1993	Resolved

Enforcement actions

California regulators took 11 formal enforcement actions against City of Westmorland between 1993 and 2024, filed as 12 records in EPA's data. The most recent was a compliance order (no penalty) in June 2024.

Date	By	Action	Violations covered
Jun 6, 2024	California	Compliance order (no penalty)	1 violation: Lead and Copper Rule
Mar 8, 2024	California	Compliance order (no penalty)	2 violations (2 health-based): Total Trihalomethanes (TTHMs)
Jul 13, 2017	California	Compliance order (no penalty)	3 violations (3 health-based): Total Trihalomethanes (TTHMs)
Oct 29, 2012	California	Compliance order (no penalty)	1 violation (1 health-based): Interim Enhanced Surface Water Treatment Rule
Mar 6, 2012	California	Compliance order (no penalty)	6 violations (5 health-based): Total Trihalomethanes (TTHMs), Public Notice
Jul 15, 2011	California	Compliance order (no penalty)	4 violations (4 health-based): Total Trihalomethanes (TTHMs)
Jun 11, 2009	California	Compliance order (no penalty)	3 violations (3 health-based): Total Trihalomethanes (TTHMs)
Dec 29, 2008	California	Compliance order (no penalty)	3 violations (3 health-based): Total Trihalomethanes (TTHMs)
Jan 17, 1997	California	Compliance order (no penalty)	1 violation (1 health-based): Surface Water Treatment Rule
Nov 15, 1993	California	Compliance order (no penalty)	1 violation (1 health-based): Surface Water Treatment Rule
Jan 28, 1993	California	Signed compliance agreement	1 violation (1 health-based): Surface Water Treatment Rule

What the violations mean

Total Trihalomethanes (TTHMs)

4 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 Westmorland buys its water from Imperial Irrigation District. It lists no wells or intakes of its own.

Buys water from

Imperial Irrigation District Imperial, CA

Annual water quality report

City of Westmorland 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.

Where the state allows it, systems serving fewer than 10,000 people may publish the report in a local newspaper or news site instead of mailing it, and must provide a copy on request.

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