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Tap water quality report

Orchard Dale Water District

EPA monitoring tested this supplier for 42 contaminants and detected 18. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

42
contaminants tested
18
detected
25,000
people served
8
health-based violations
Water source
GWP
Ownership
Local government
Counties served
Los Angeles

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

8
health-based violations
10
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2008-11-01 → 2008-11-30
MCL Health-based Resolved 2008-11-01 → 2008-11-30
MCL Health-based Resolved 2001-10-01 → 2001-10-31
MCL Health-based Resolved 2001-10-01 → 2001-10-31
MCL Health-based Resolved 1999-09-01 → 1999-10-31
MCL Health-based Resolved 1999-09-01 → 1999-10-31
MCL Health-based Resolved 1993-10-01 → 1993-11-30
MCL Health-based Resolved 1993-10-01 → 1993-11-30
MR Monitoring Resolved 2020-10-01
MR Monitoring Resolved 2020-10-01

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
Pfba 0.0088 µg/L 2/2 2025
PFBS 0.0072 µg/L 2/2 2025
Pfhxa 0.0072 µg/L 2/2 2025
PFHXS 0.0040 µg/L 2/2 2025
PFOA 0.0099 µg/L 2/2 2025
PFOS 0.0230 µg/L 2/2 2025
Pfpea 0.0100 µg/L 2/2 2025

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 95th percentile of this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Bromoform
8.87 µg/L
No EPA limit set
worst single sample: 10.6 µg/L
124/124 SYR4 2012–2019
TTHM
16.785 µg/L 21%
of the EPA limit 80 µg/L
worst single sample: 29.2 µg/L
124/124 SYR4 2012–2019
Dibromoacetic Acid
3.22 µg/L
No EPA limit set
worst single sample: 4.6 µg/L
117/124 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
3.6 µg/L 6%
of the EPA limit 60 µg/L
worst single sample: 7.1 µg/L
117/124 SYR4 2012–2019
Dibromochloromethane
6.4 µg/L
No EPA limit set
worst single sample: 10.8 µg/L
115/124 SYR4 2012–2019
Bromodichloromethane
2.425 µg/L
No EPA limit set
worst single sample: 7.4 µg/L
76/124 SYR4 2012–2019
Lead
0.0010 mg/L 6.7%
of the EPA limit 0.0150 mg/L
41/41 LCR 2024
Chloroform
2 µg/L
No EPA limit set
worst single sample: 4.6 µg/L
29/124 SYR4 2012–2019
Trichloroacetic Acid
1.45 µg/L
No EPA limit set
worst single sample: 1.6 µg/L
7/124 SYR4 2012–2019
Monobromoacetic Acid
1.67 µg/L
No EPA limit set
worst single sample: 1.7 µg/L
3/124 SYR4 2012–2019
Dichloroacetic Acid
2.2 µg/L
No EPA limit set
1/124 SYR4 2012–2019
24 contaminants tested, none detected
11Cl-PF3OUdS4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaHfpo-DaMonochloroacetic AcidNetfosaaNfdhaNmefosaaPfdaPfdoaPfeesaPfhpaPfhpsPfmbaPfmpaPFNAPfpesPftaPftrdaPfunaLithium

Utility contact

Contact
CASTANEDA, ED
Phone
562-941-0114
Email
[email protected]

Frequently asked questions about Orchard Dale Water District

Is Orchard Dale Water District tap water safe to drink?

EPA monitoring detected 18 contaminants in Orchard Dale 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 Orchard Dale Water District's water?

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

How many people does Orchard Dale Water District serve?

Orchard Dale Water District reports serving 25,000 people in California, per its EPA record.

Has Orchard Dale Water District had any water quality violations?

The EPA has 10 violations on file for Orchard Dale Water District, of which 8 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.

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.