Is Trabuco Canyon Water District Tap Water Safe? Quality Report

Water source: SWP
Ownership: Local government
Counties served: Orange

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
TT	Health-based	Resolved	1999-01-01
TT	Health-based	Resolved	1999-01-01
TT	Health-based	Resolved	1999-01-01
MCL	Health-based	Resolved	1997-08-01 → 1997-08-31
MR	Monitoring	Resolved	1997-09-01 → 1997-09-30
MR	Monitoring	Resolved	1996-11-01 → 1996-11-30
MR	Monitoring	Resolved	1996-11-01 → 1996-11-30

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	21.115 µg/L No EPA limit set worst single sample: 30.4 µg/L	120/121	SYR4	2012–2019
Chloroform	31.3 µg/L No EPA limit set worst single sample: 97 µg/L	120/121	SYR4	2012–2019
Dibromochloromethane	18.215 µg/L No EPA limit set worst single sample: 31.7 µg/L	120/121	SYR4	2012–2019
Bromoform	4.871 µg/L No EPA limit set worst single sample: 6.13 µg/L	119/121	SYR4	2012–2019
TTHM	70.97 µg/L 89% of the EPA limit 80 µg/L worst single sample: 133 µg/L	119/121	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	18.625 µg/L 31% of the EPA limit 60 µg/L worst single sample: 30.5 µg/L	116/118	SYR4	2012–2019
Dichloroacetic Acid	8.814 µg/L No EPA limit set worst single sample: 11.3 µg/L	115/116	SYR4	2012–2019
Trichloroacetic Acid	8.02 µg/L No EPA limit set worst single sample: 24.1 µg/L	112/116	SYR4	2012–2019
Dibromoacetic Acid	3.411 µg/L No EPA limit set worst single sample: 6.11 µg/L	84/116	SYR4	2012–2019
Nitrate	2377.5 µg/L 24% of the EPA limit 10000 µg/L worst single sample: 2510 µg/L	26/116	SYR4	2012–2019
Lead	0.0039 mg/L 26% of the EPA limit 0.0150 mg/L	25/25	LCR	2024
Fluoride	314.9 µg/L 7.9% of the EPA limit 4000 µg/L worst single sample: 327 µg/L	12/14	SYR4	2012–2019
Barium	130.4 µg/L 6.5% of the EPA limit 2000 µg/L worst single sample: 131 µg/L	7/14	SYR4	2012–2019
Monobromoacetic Acid	2.4875 µg/L No EPA limit set worst single sample: 2.77 µg/L	6/116	SYR4	2012–2019
Lithium	65.9 µg/L No EPA limit set	4/7	UCMR-5	2024
Monochloroacetic Acid	1.2805 µg/L No EPA limit set worst single sample: 1.29 µg/L	2/116	SYR4	2012–2019
Selenium	5.5395 µg/L 11% of the EPA limit 50 µg/L worst single sample: 5.55 µg/L	2/14	SYR4	2012–2019
Combined Uranium	3.576 µg/L 12% of the EPA limit 30 µg/L	1/3	SYR4	2017

92 contaminants tested, none detected

1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,3,7,8-TCDD2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalArsenicAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCopperCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoLeadMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: MCKENNEY, LARRY
Phone: 949-858-0277
Email: [email protected]

Frequently asked questions about Trabuco Canyon Water District

Is Trabuco Canyon Water District tap water safe to drink?

EPA monitoring detected 18 contaminants in Trabuco Canyon 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 Trabuco Canyon Water District's water?

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

How many people does Trabuco Canyon Water District serve?

Trabuco Canyon Water District reports serving 13,659 people in California, per its EPA record.

Has Trabuco Canyon Water District had any water quality violations?

The EPA has 7 violations on file for Trabuco Canyon Water District, 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.