Tap WaterIndex

← California

Tap water quality report

Yorba Linda Water District

EPA monitoring tested this supplier for 44 contaminants and detected 14. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

44
contaminants tested
14
detected
84,292
people served
0
health-based violations
California rankingsLead in CaliforniaPFAS in California
Water source
SWP
Ownership
Local government
Counties served
Orange

Compliance record

No violations on file. The EPA has no formal drinking-water violations recorded for this supplier.

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
Pfba 0.0206 µg/L 2/10 2024
Pfpea 0.0053 µg/L 2/10 2024

Other contaminants detected

Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Bromodichloromethane
21 µg/L
No EPA limit set
 249/250 SYR4 2012–2019
Chloroform
23.8 µg/L
No EPA limit set
 249/250 SYR4 2012–2019
Dibromochloromethane
33.6 µg/L
No EPA limit set
 249/250 SYR4 2012–2019
TTHM
78.2 µg/L 98%
of the EPA limit 80 µg/L
 249/250 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
26.3 µg/L 44%
of the EPA limit 60 µg/L
 249/250 SYR4 2012–2019
Bromoform
26.8 µg/L
No EPA limit set
 247/250 SYR4 2012–2019
Dichloroacetic Acid
13.7 µg/L
No EPA limit set
 245/250 SYR4 2012–2019
Dibromoacetic Acid
13.6 µg/L
No EPA limit set
 229/250 SYR4 2012–2019
Trichloroacetic Acid
7.5 µg/L
No EPA limit set
 159/250 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 21/21 LCR 2024
Monobromoacetic Acid
1.2 µg/L
No EPA limit set
 14/250 SYR4 2012–2019
Lithium
36.3779 µg/L
No EPA limit set
 8/10 UCMR-5 2024
30 contaminants tested, none detected
11Cl-PF3OUdS4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaCopperHfpo-DaLeadMonochloroacetic AcidNetfosaaNfdhaNmefosaaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpesPftaPftrdaPfuna

Utility contact

Contact
WESTON, ROSANNE
Phone
714-701-3102
Email
rweston@ylwd.com

Frequently asked questions about Yorba Linda Water District

Is Yorba Linda Water District tap water safe to drink?

EPA monitoring detected 14 contaminants in Yorba Linda Water District's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Yorba Linda Water District's water?

EPA monitoring detected Bromodichloromethane, Chloroform, Dibromochloromethane, TTHM, Total Haloacetic Acids (HAA5), and others. The full list with the level and data source for each is above.

How many people does Yorba Linda Water District serve?

Yorba Linda Water District reports serving 84,292 people in California, per its EPA record.

Has Yorba Linda Water District had any water quality violations?

The EPA has no formal drinking-water violations on file for Yorba Linda Water District.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.