Is Carlsbad Mwd Tap Water Safe? Quality Report

Water source: SWP
Ownership: Local government
Counties served: San Diego

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.

Contaminant	Level vs EPA limit	Detection rate	Source	Period
TTHM	33 µg/L 41% of the EPA limit 80 µg/L worst single sample: 49 µg/L	209/214	SYR4	2013–2019
Bromodichloromethane	10 µg/L No EPA limit set worst single sample: 17 µg/L	208/214	SYR4	2013–2019
Chloroform	12 µg/L No EPA limit set worst single sample: 17 µg/L	208/214	SYR4	2013–2019
Dibromochloromethane	12 µg/L No EPA limit set worst single sample: 18 µg/L	208/214	SYR4	2013–2019
Total Haloacetic Acids (HAA5)	12 µg/L 20% of the EPA limit 60 µg/L worst single sample: 16 µg/L	194/206	SYR4	2013–2019
Bromoform	6.575 µg/L No EPA limit set worst single sample: 14 µg/L	186/214	SYR4	2013–2019
Dichloroacetic Acid	5.12 µg/L No EPA limit set worst single sample: 8.2 µg/L	177/206	SYR4	2013–2019
Dibromoacetic Acid	3.5 µg/L No EPA limit set worst single sample: 4.9 µg/L	169/206	SYR4	2013–2019
Trichloroacetic Acid	4.475 µg/L No EPA limit set worst single sample: 6.5 µg/L	106/206	SYR4	2013–2019
Monochloroacetic Acid	5.415 µg/L No EPA limit set worst single sample: 6 µg/L	38/206	SYR4	2013–2019
Monobromoacetic Acid	2.52 µg/L No EPA limit set worst single sample: 2.6 µg/L	25/206	SYR4	2013–2019
Lead	0.0 mg/L 0% of the EPA limit 0.0150 mg/L	15/15	LCR	2024
Lithium	52.5 µg/L No EPA limit set	15/16	UCMR-5	2023

29 contaminants tested, none detected

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Utility contact

Contact: FLESSE, AMANDA
Phone: 442-339-2722
Email: [email protected]

Frequently asked questions about Carlsbad Mwd

Is Carlsbad Mwd tap water safe to drink?

EPA monitoring detected 13 contaminants in Carlsbad Mwd'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 Carlsbad Mwd's water?

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

How many people does Carlsbad Mwd serve?

Carlsbad Mwd reports serving 95,158 people in California, per its EPA record.

Has Carlsbad Mwd had any water quality violations?

The EPA has no formal drinking-water violations on file for Carlsbad Mwd.

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.