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Tap water quality report

Moulton Niguel Water District

EPA monitoring tested this supplier for 42 contaminants and detected 11. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

42
contaminants tested
11
detected
170,236
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.

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
Bromodichloromethane
18.755 µg/L
No EPA limit set
worst single sample: 23.4 µg/L
184/184 SYR4 2012–2019
Bromoform
10.4 µg/L
No EPA limit set
worst single sample: 15.1 µg/L
184/184 SYR4 2012–2019
Chloroform
19.885 µg/L
No EPA limit set
worst single sample: 33.8 µg/L
184/184 SYR4 2012–2019
Dibromochloromethane
25.64 µg/L
No EPA limit set
worst single sample: 51.9 µg/L
184/184 SYR4 2012–2019
TTHM
64.77 µg/L 81%
of the EPA limit 80 µg/L
worst single sample: 75.9 µg/L
184/184 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
27.225 µg/L 45%
of the EPA limit 60 µg/L
worst single sample: 35.7 µg/L
184/184 SYR4 2012–2019
Trichloroacetic Acid
8.0155 µg/L
No EPA limit set
worst single sample: 15.1 µg/L
184/184 SYR4 2012–2019
Dichloroacetic Acid
14.66 µg/L
No EPA limit set
worst single sample: 20.4 µg/L
183/184 SYR4 2012–2019
Dibromoacetic Acid
9.411 µg/L
No EPA limit set
worst single sample: 12.7 µg/L
174/184 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 24/24 LCR 2024
Lithium
43 µg/L
No EPA limit set
 8/8 UCMR-5 2024
31 contaminants tested, none detected
11Cl-PF3OUdS4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaHfpo-DaMonobromoacetic AcidMonochloroacetic AcidNetfosaaNfdhaNmefosaaPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfuna

Utility contact

Contact
COLLINGS, MATT
Phone
949-448-4032
Email
[email protected]

Frequently asked questions about Moulton Niguel Water District

Is Moulton Niguel Water District tap water safe to drink?

EPA monitoring detected 11 contaminants in Moulton Niguel 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 Moulton Niguel Water District's water?

EPA monitoring detected Bromodichloromethane, Bromoform, Chloroform, Dibromochloromethane, TTHM, and others. The full list with the level and data source for each is above.

How many people does Moulton Niguel Water District serve?

Moulton Niguel Water District reports serving 170,236 people in California, per its EPA record.

Has Moulton Niguel Water District had any water quality violations?

The EPA has no formal drinking-water violations on file for Moulton Niguel 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.