Is California Domestic Water Company Tap Water Safe? Quality Report

Water source: Ground water
Ownership: Private
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.

health-based violations

violations on file

still open

Violation	Type	Status	Period
MR	Monitoring	Resolved	1992-07-01 → 2000-03-01

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
Nitrate	11000 µg/L 110% of the EPA limit, at the 95th percentile of samples — 10000 µg/L worst single sample: 17628 µg/L	2744/2744	SYR4	2012–2019
Trichloroethylene	28 µg/L 560% of the EPA limit, at the 95th percentile of samples — 5 µg/L worst single sample: 57 µg/L	2517/2820	SYR4	2012–2019
Tetrachloroethylene	24 µg/L 480% of the EPA limit, at the 95th percentile of samples — 5 µg/L worst single sample: 58 µg/L	1892/2820	SYR4	2012–2019
Carbon Tetrachloride	1.8 µg/L 36% of the EPA limit 5 µg/L worst single sample: 3.2 µg/L	681/2775	SYR4	2012–2019
1,1-Dichloroethylene	5.3 µg/L 76% of the EPA limit 7 µg/L worst single sample: 9.4 µg/L	417/650	SYR4	2012–2019
Arsenic	2.8 µg/L 28% of the EPA limit 10 µg/L worst single sample: 7.6 µg/L	368/700	SYR4	2012–2019
cis-1,2-Dichloroethylene	4.1 µg/L 5.9% of the EPA limit 70 µg/L worst single sample: 6.5 µg/L	190/340	SYR4	2012–2019
Fluoride	360 µg/L 9% of the EPA limit 4000 µg/L worst single sample: 380 µg/L	135/135	SYR4	2012–2019
Barium	200 µg/L 10% of the EPA limit 2000 µg/L worst single sample: 210 µg/L	134/135	SYR4	2012–2019
Nitrate-Nitrite	11850 µg/L 119% of the EPA limit, at the 95th percentile of samples — 10000 µg/L worst single sample: 14000 µg/L	64/64	SYR4	2016–2019
TTHM	6.85 µg/L 8.6% of the EPA limit 80 µg/L worst single sample: 25 µg/L	56/95	SYR4	2012–2019
Combined Uranium	5.3938 µg/L 18% of the EPA limit 30 µg/L worst single sample: 6.556 µg/L	14/14	SYR4	2012–2018
Dibromochloromethane	4.62 µg/L No EPA limit set worst single sample: 6.9 µg/L	13/95	SYR4	2012–2019
Lead	0.0 mg/L 0% of the EPA limit 0.0150 mg/L	10/10	LCR	2013
Total Haloacetic Acids (HAA5)	2.635 µg/L 4.4% of the EPA limit 60 µg/L worst single sample: 3.4 µg/L	10/95	SYR4	2012–2019
Bromoform	13.005 µg/L No EPA limit set worst single sample: 15 µg/L	8/95	SYR4	2012–2019
Dichloroacetic Acid	1.7 µg/L No EPA limit set	7/95	SYR4	2012–2019
trans-1,2-Dichloroethylene	6.48 µg/L 6.5% of the EPA limit 100 µg/L worst single sample: 7 µg/L	5/178	SYR4	2012–2019
Bromodichloromethane	2.165 µg/L No EPA limit set worst single sample: 2.3 µg/L	4/95	SYR4	2012–2019
Dibromoacetic Acid	3.21 µg/L No EPA limit set worst single sample: 3.4 µg/L	3/95	SYR4	2012–2019
1,2-Dichloroethane	0.5000 µg/L 10% of the EPA limit 5 µg/L	1/1020	SYR4	2012–2019

60 contaminants tested, none detected

1,1,1-Trichloroethane1,1,2-Trichloroethane1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloropropane2,3,7,8-TCDD2,4,5-TP2,4-DAntimony, TotalAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCopperCyanideCadmiumCarbofuranChlordaneChloroformChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoLeadMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroacetic AcidVinyl ChlorideXylenes, TotalO-DichlorobenzeneP-Dichlorobenzene

Utility contact

Contact: NORIEGA, LYNDA
Phone: 562-947-3811
Email: [email protected]

Frequently asked questions about California Domestic Water Company

Is California Domestic Water Company tap water safe to drink?

EPA monitoring detected 21 contaminants in California Domestic Water Company'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 California Domestic Water Company's water?

EPA monitoring detected Nitrate, Trichloroethylene, Tetrachloroethylene, Carbon Tetrachloride, 1,1-Dichloroethylene, and others. The full list with the level and data source for each is above.

How many people does California Domestic Water Company serve?

California Domestic Water Company reports serving 0 people in California, per its EPA record.

Has California Domestic Water Company had any water quality violations?

The EPA has 1 violation on file for California Domestic Water Company, of which 0 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.