Is Valley Center Mwd Tap Water Safe? Quality Report

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

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.

health-based violations

violations on file

still open

Violation	Type	Status	Period
MCL	Health-based	Resolved	2000-07-01 → 2000-07-31
MCL	Health-based	Resolved	2000-07-01 → 2000-07-31
MCL	Health-based	Resolved	1997-03-01 → 1997-03-31
MCL	Health-based	Resolved	1997-03-01 → 1997-03-31
Other	Monitoring	Archived	1989-11-01 → 1989-11-30
Other	Monitoring	Archived	1988-09-01 → 1988-09-30

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
Bromodichloromethane	8.238 µg/L No EPA limit set worst single sample: 10.8 µg/L	124/124	SYR4	2012–2019
Chloroform	8.185 µg/L No EPA limit set worst single sample: 36.4 µg/L	124/124	SYR4	2012–2019
TTHM	27.45 µg/L 34% of the EPA limit 80 µg/L worst single sample: 45.1 µg/L	124/124	SYR4	2012–2019
Dibromochloromethane	9.3615 µg/L No EPA limit set worst single sample: 14.8 µg/L	120/124	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	15.64 µg/L 26% of the EPA limit 60 µg/L worst single sample: 30 µg/L	119/124	SYR4	2012–2019
Dichloroacetic Acid	7.5665 µg/L No EPA limit set worst single sample: 9.8 µg/L	112/124	SYR4	2012–2019
Trichloroacetic Acid	4.855 µg/L No EPA limit set worst single sample: 7.2 µg/L	106/124	SYR4	2012–2019
Bromoform	7.0235 µg/L No EPA limit set worst single sample: 10.7 µg/L	102/124	SYR4	2012–2019
Dibromoacetic Acid	4.4625 µg/L No EPA limit set worst single sample: 7.03 µg/L	90/124	SYR4	2012–2019
Lead	0.0040 mg/L 27% of the EPA limit 0.0150 mg/L	18/18	LCR	2022
Monobromoacetic Acid	3.506 µg/L No EPA limit set worst single sample: 3.59 µg/L	8/124	SYR4	2012–2019
Lithium	40 µg/L No EPA limit set	4/4	UCMR-5	2024
Monochloroacetic Acid	24.5 µg/L No EPA limit set worst single sample: 25 µg/L	3/124	SYR4	2012–2019

29 contaminants tested, none detected

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Utility contact

Contact: LEAHY, LINDSAY
Phone: 760-735-4513
Email: [email protected]

Frequently asked questions about Valley Center Mwd

Is Valley Center Mwd tap water safe to drink?

EPA monitoring detected 13 contaminants in Valley Center 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 Valley Center Mwd's water?

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

How many people does Valley Center Mwd serve?

Valley Center Mwd reports serving 29,938 people in California, per its EPA record.

Has Valley Center Mwd had any water quality violations?

The EPA has 6 violations on file for Valley Center Mwd, of which 4 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.