CITY OF LA HABRA

Q: Is CITY OF LA HABRA water safe to drink?

CITY OF LA HABRA (PWS ID: CA3010018) has 101 recorded violations in the EPA SDWIS database. PFAS contamination has been detected in UCMR5 testing, with 1 PFAS compound found. This system serves 63,118 people using Surface Water sources.

Q: What type of violations does CITY OF LA HABRA have?

CITY OF LA HABRA has 101 total violations: 0 health-based violations (MCL exceedances or treatment failures), 96 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.

Q: Has PFAS been detected in CITY OF LA HABRA water?

Yes. UCMR5 testing detected 1 PFAS compound in CITY OF LA HABRA's water supply: lithium. PFAS are persistent "forever chemicals" that do not break down in the environment.

Q: What water source does CITY OF LA HABRA use?

CITY OF LA HABRA uses Surface Water as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.

Q: Where does this data come from?

All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.

Reviewed byPlainWater Editorial, Drinking Water Quality Editorial Team · June 4, 2026

PWS ID: CA3010018 · LA HABRA, California 90631

CITY OF LA HABRA serves 63,118 people in LA HABRA, California using Surface Water water sources. It has 101 recorded EPA violations, including 0 health-based violations. PFAS "forever chemicals" were detected in UCMR5 testing (1 compound found).

Water Quality Snapshot: CITY OF LA HABRA

CITY OF LA HABRA is a local-owned community water system that delivers drinking water to 63,118 residents in LA HABRA, California (Orange County) through 12,982 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 101 total violations for this system , of which 0 (0%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 96 monitoring and reporting violations are on file. The most recent violation on record dates to 2015.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 4 violations (MR). Under EPA's UCMR5 PFAS monitoring program, 1 PFAS compound was detected in samples collected from this system, with a maximum reported concentration of 56.3 ppt. PFAS are persistent synthetic chemicals linked to health effects at very low exposure levels.

Across California, EPA tracks 7,249 public water systems serving 42,404,883 people, with 153,308 cumulative violations and 63,983 health-based violations on record. About 89% of systems in the state carry at least one violation, and state-wide the average per system is 21.1 violations. CITY OF LA HABRA's 101 violations sit above the California average. Statewide, 447 of 694 UCMR5-tested systems have reported PFAS detections (64.4%). All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

PFAS Detected

1 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.

Population Served

63,118

Total Violations

101

Health-Based Violations

Water Source

Surface Water

System Details

System Type: Community
Owner Type: Local
Connections: 12,982
County: Orange
School/Daycare: No
MCL Violations: 0
Monitoring Violations: 96
Treatment Tech Violations: 0

Violation History

Contaminant violations recorded by EPA.

Contaminant	Category	Count	Latest
Coliform (TCR)	MR	4	2015
Vinyl chloride	MR	4	2012
1,2-Dichloroethane	MR	4	2012
1,1,1-Trichloroethane	MR	4	2012
Carbon tetrachloride	MR	4	2012
Trichloroethylene	MR	4	2012
1,1,2-Trichloroethane	MR	4	2012
Benzene	MR	4	2012
Toluene	MR	4	2012
Styrene	MR	4	2012
Groundwater Rule	MR	4	2013
Nitrate	MR	4	2012
1,2,4-Trichlorobenzene	MR	4	2012
1,2-Dichloropropane	MR	4	2012
cis-1,2-Dichloroethylene	MR	4	2012
DICHLOROMETHANE	MR	4	2012
p-Dichlorobenzene	MR	4	2012
Tetrachloroethylene	MR	4	2012
1,1-Dichloroethylene	MR	4	2012
Xylenes, Total	MR	4	2012
Ethylbenzene	MR	4	2012
o-Dichlorobenzene	MR	4	2012
CHLOROBENZENE	MR	4	2012
trans-1,2-Dichloroethylene	MR	4	2012

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 3 of 210 samples detected PFAS.

Contaminant	Date	Result	MRL	Status
PFHpA	7/28/2025	<0.003 µg/L	0.003 µg/L	Not Detected
PFHxS	7/28/2025	<0.003 µg/L	0.003 µg/L	Not Detected
PFNA	7/28/2025	<0.004 µg/L	0.004 µg/L	Not Detected
PFPeS	7/28/2025	<0.004 µg/L	0.004 µg/L	Not Detected
PFHpS	7/28/2025	<0.003 µg/L	0.003 µg/L	Not Detected
PFOS	7/28/2025	<0.004 µg/L	0.004 µg/L	Not Detected
PFOA	7/28/2025	<0.004 µg/L	0.004 µg/L	Not Detected
PFDA	7/28/2025	<0.003 µg/L	0.003 µg/L	Not Detected
PFDoA	7/28/2025	<0.003 µg/L	0.003 µg/L	Not Detected
PFHxA	7/28/2025	<0.003 µg/L	0.003 µg/L	Not Detected
PFUnA	7/28/2025	<0.002 µg/L	0.002 µg/L	Not Detected
PFBS	7/28/2025	<0.003 µg/L	0.003 µg/L	Not Detected
ADONA	7/28/2025	<0.003 µg/L	0.003 µg/L	Not Detected
9Cl-PF3ONS	7/28/2025	<0.002 µg/L	0.002 µg/L	Not Detected
PFBA	7/28/2025	<0.005 µg/L	0.005 µg/L	Not Detected
6:2 FTS	7/28/2025	<0.005 µg/L	0.005 µg/L	Not Detected
4:2 FTS	7/28/2025	<0.003 µg/L	0.003 µg/L	Not Detected
8:2 FTS	7/28/2025	<0.005 µg/L	0.005 µg/L	Not Detected
PFMPA	7/28/2025	<0.004 µg/L	0.004 µg/L	Not Detected
PFPeA	7/28/2025	<0.003 µg/L	0.003 µg/L	Not Detected
PFMBA	7/28/2025	<0.003 µg/L	0.003 µg/L	Not Detected
PFEESA	7/28/2025	<0.003 µg/L	0.003 µg/L	Not Detected
NFDHA	7/28/2025	<0.02 µg/L	0.02 µg/L	Not Detected
11Cl-PF3OUdS	7/28/2025	<0.005 µg/L	0.005 µg/L	Not Detected
HFPO-DA	7/28/2025	<0.005 µg/L	0.005 µg/L	Not Detected
NMeFOSAA	7/28/2025	<0.006 µg/L	0.006 µg/L	Not Detected
NEtFOSAA	7/28/2025	<0.005 µg/L	0.005 µg/L	Not Detected
PFTrDA	7/28/2025	<0.007 µg/L	0.007 µg/L	Not Detected
PFTA	7/28/2025	<0.008 µg/L	0.008 µg/L	Not Detected
lithium	7/28/2025	<9 µg/L	9 µg/L	Not Detected
PFEESA	7/28/2025	<0.003 µg/L	0.003 µg/L	Not Detected
PFBA	7/28/2025	<0.005 µg/L	0.005 µg/L	Not Detected
PFTA	7/28/2025	<0.008 µg/L	0.008 µg/L	Not Detected
PFTrDA	7/28/2025	<0.007 µg/L	0.007 µg/L	Not Detected
NEtFOSAA	7/28/2025	<0.005 µg/L	0.005 µg/L	Not Detected
NMeFOSAA	7/28/2025	<0.006 µg/L	0.006 µg/L	Not Detected
lithium	7/28/2025	18.9000 µg/L	9 µg/L	Detected
PFDA	7/28/2025	<0.003 µg/L	0.003 µg/L	Not Detected
PFDoA	7/28/2025	<0.003 µg/L	0.003 µg/L	Not Detected
PFHxA	7/28/2025	<0.003 µg/L	0.003 µg/L	Not Detected
PFUnA	7/28/2025	<0.002 µg/L	0.002 µg/L	Not Detected
11Cl-PF3OUdS	7/28/2025	<0.005 µg/L	0.005 µg/L	Not Detected
9Cl-PF3ONS	7/28/2025	<0.002 µg/L	0.002 µg/L	Not Detected
PFPeS	7/28/2025	<0.004 µg/L	0.004 µg/L	Not Detected
HFPO-DA	7/28/2025	<0.005 µg/L	0.005 µg/L	Not Detected
PFHxS	7/28/2025	<0.003 µg/L	0.003 µg/L	Not Detected
NFDHA	7/28/2025	<0.02 µg/L	0.02 µg/L	Not Detected
PFMBA	7/28/2025	<0.003 µg/L	0.003 µg/L	Not Detected
PFPeA	7/28/2025	<0.003 µg/L	0.003 µg/L	Not Detected
PFOA	7/28/2025	<0.004 µg/L	0.004 µg/L	Not Detected

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records — or to file a complaint, request a Consumer Confidence Report, or check current monitoring status — go directly to the federal and state regulators that enforce the Safe Drinking Water Act for CITY OF LA HABRA.

Federal Source of Truth

EPA SDWIS — Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID CA3010018 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

California Drinking Water Authority

California State Water Resources Control Board — Division of Drinking Water is the primacy agency that licenses and inspects CITY OF LA HABRA under EPA-delegated authority.

Open CA regulator portal

Source: California State Water Resources Control Board — Division of Drinking Water

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest)	Contaminant	Category	Count	EPA Record
2015	Coliform (TCR)	MR	4	SDWIS / CA3010018 / 3100
2013	Groundwater Rule	MR	4	SDWIS / CA3010018 / 0700
2012	Vinyl chloride	MR	4	SDWIS / CA3010018 / 2976
2012	1,2-Dichloroethane	MR	4	SDWIS / CA3010018 / 2980
2012	1,1,1-Trichloroethane	MR	4	SDWIS / CA3010018 / 2981
2012	Carbon tetrachloride	MR	4	SDWIS / CA3010018 / 2982
2012	Trichloroethylene	MR	4	SDWIS / CA3010018 / 2984
2012	1,1,2-Trichloroethane	MR	4	SDWIS / CA3010018 / 2985
2012	Benzene	MR	4	SDWIS / CA3010018 / 2990
2012	Toluene	MR	4	SDWIS / CA3010018 / 2991
2012	Styrene	MR	4	SDWIS / CA3010018 / 2996
2012	Nitrate	MR	4	SDWIS / CA3010018 / 1040
2012	1,2,4-Trichlorobenzene	MR	4	SDWIS / CA3010018 / 2378
2012	1,2-Dichloropropane	MR	4	SDWIS / CA3010018 / 2983
2012	cis-1,2-Dichloroethylene	MR	4	SDWIS / CA3010018 / 2380

How CITY OF LA HABRA Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric	CITY OF LA HABRA	California avg	Federal benchmark
Total violations	101	21.1	SDWA compliance — any non-zero count is a recorded breach
Health-based violations	0	8.8	Indicates a contaminant exceeded a federal MCL
PFAS detection	1 compound	64.4%	EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served	63,118	5,850	Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 7,249 regulated public water systems in California.

Federal MCL reference — Safe Drinking Water Act thresholds ▼

Contaminant	Federal MCL / Action Level	Note
Lead	0 mg/L (Action Level: 0.015 mg/L)	Lead and Copper Rule treatment technique
Arsenic	0.010 mg/L (10 ppb)	Health-based MCL since 2006
Total Coliform	Treatment technique (RTCR)	Indicator organism, monitoring trigger
PFOA / PFOS (PFAS)	4.0 ppt each (final 2024 rule)	Compliance deadline 2029
Nitrate (as N)	10 mg/L	Acute health risk for infants

Frequently Asked Questions

Is CITY OF LA HABRA water safe to drink? ▼

CITY OF LA HABRA (PWS ID: CA3010018) has 101 recorded violations in the EPA SDWIS database. PFAS contamination has been detected in UCMR5 testing, with 1 PFAS compound found. This system serves 63,118 people using Surface Water sources.

How many people does CITY OF LA HABRA serve? ▼

CITY OF LA HABRA serves 63,118 people in LA HABRA, California. It is a Local-owned system using Surface Water water sources with 12,982 service connections.

What type of violations does CITY OF LA HABRA have? ▼

CITY OF LA HABRA has 101 total violations: 0 health-based violations (MCL exceedances or treatment failures), 96 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.

Has PFAS been detected in CITY OF LA HABRA water? ▼

Yes. UCMR5 testing detected 1 PFAS compound in CITY OF LA HABRA's water supply: lithium. PFAS are persistent "forever chemicals" that do not break down in the environment.

What water source does CITY OF LA HABRA use? ▼

CITY OF LA HABRA uses Surface Water as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.

Where does this data come from? ▼

All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.

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Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. PFAS data from EPA UCMR5 monitoring program (2023-2025). This data is provided for informational purposes only.

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