Is Oxnard Water Dept Tap Water Safe? Quality Report

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

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	2015-10-01
MR	Monitoring	Resolved	2015-10-01
MR	Monitoring	Resolved	2008-04-01 → 2008-06-30
MR	Monitoring	Resolved	2008-04-01 → 2008-06-30
MR	Monitoring	Resolved	2008-04-01 → 2008-06-30
MR	Monitoring	Resolved	2008-04-01 → 2008-06-30
MR	Monitoring	Resolved	2004-01-01 → 2004-03-31
MR	Monitoring	Resolved	2004-01-01 → 2004-03-31
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	9800 µg/L 98% of the EPA limit 10000 µg/L worst single sample: 17628 µg/L	4628/4756	SYR4	2012–2019
Fluoride	700 µg/L 18% of the EPA limit 4000 µg/L worst single sample: 1300 µg/L	1790/1790	SYR4	2012–2019
TTHM	36.65 µg/L 46% of the EPA limit 80 µg/L worst single sample: 52 µg/L	208/209	SYR4	2012–2019
Bromoform	19 µg/L No EPA limit set worst single sample: 26 µg/L	203/209	SYR4	2012–2019
Dibromochloromethane	12 µg/L No EPA limit set worst single sample: 19 µg/L	192/209	SYR4	2012–2019
Dibromoacetic Acid	7.4 µg/L No EPA limit set worst single sample: 11 µg/L	187/198	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	10.7 µg/L 18% of the EPA limit 60 µg/L worst single sample: 14 µg/L	187/198	SYR4	2012–2019
Bromodichloromethane	5.2 µg/L No EPA limit set worst single sample: 11 µg/L	171/209	SYR4	2012–2019
Dichloroacetic Acid	2.635 µg/L No EPA limit set worst single sample: 3.1 µg/L	54/198	SYR4	2012–2019
Chloroform	4.7 µg/L No EPA limit set worst single sample: 6.2 µg/L	49/209	SYR4	2012–2019
Lead	0.0 mg/L 0% of the EPA limit 0.0150 mg/L	39/39	LCR	2027
Monobromoacetic Acid	2.6 µg/L No EPA limit set worst single sample: 2.7 µg/L	37/198	SYR4	2012–2019
Combined Uranium	22.946 µg/L 76% of the EPA limit 30 µg/L worst single sample: 26.82 µg/L	34/34	SYR4	2014–2019
Nitrate-Nitrite	11700 µg/L 117% of the EPA limit, at the 95th percentile of samples — 10000 µg/L worst single sample: 13000 µg/L	34/51	SYR4	2013–2019
Gross Beta Particle Activity	22.965 pCi/L No EPA limit set worst single sample: 35 pCi/L	28/32	SYR4	2012–2019
Selenium	46.4 µg/L 93% of the EPA limit 50 µg/L worst single sample: 89 µg/L	27/57	SYR4	2013–2019
Monochloroacetic Acid	4.285 µg/L No EPA limit set worst single sample: 5.1 µg/L	22/198	SYR4	2012–2019
Arsenic	5.15 µg/L 52% of the EPA limit 10 µg/L worst single sample: 6.5 µg/L	16/57	SYR4	2013–2019
Lithium	39 µg/L No EPA limit set	12/12	UCMR-5	2023
Trichloroacetic Acid	1.42 µg/L No EPA limit set worst single sample: 1.5 µg/L	9/198	SYR4	2012–2019
Copper	6.4 µg/L 0.5% of the EPA limit 1300 µg/L	1/58	SYR4	2012–2019
Dichloromethane	0.5600 µg/L 11% of the EPA limit 5 µg/L	1/36	SYR4	2013–2019
Di(2-ethylhexyl) Phthalate	8.8 µg/L 147% of the EPA limit, at the 95th percentile of samples — 6 µg/L	1/31	SYR4	2013–2019
Ethylene Dibromide	0.0440 µg/L 88% of the EPA limit 0.0500 µg/L	1/33	SYR4	2013–2019

88 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, TotalAsbestosAtrazineBhc-GammaBariumBenzeneBenzo(A)PyreneBeryllium, TotalBromateChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDalaponDinosebDiquatEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoLeadMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: PEYTON, CHRIS
Phone: 805-385-8111
Email: [email protected]

Frequently asked questions about Oxnard Water Dept

Is Oxnard Water Dept tap water safe to drink?

EPA monitoring detected 24 contaminants in Oxnard Water Dept'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 Oxnard Water Dept's water?

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

How many people does Oxnard Water Dept serve?

Oxnard Water Dept reports serving 200,232 people in California, per its EPA record.

Has Oxnard Water Dept had any water quality violations?

The EPA has 9 violations on file for Oxnard Water Dept, 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.