Is Westbury, NY Tap Water Safe? Quality & Contaminants

What was found in Westbury's water

The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.

Contaminant	Level vs EPA limit	Suppliers	Source
Nitrate-Nitrite	8976 µg/L 90% of the EPA limit 10000 µg/L Main supplier: WESTBURY WD · 20,500 people · 2019	1/1	SYR4
Nitrate	8900 µg/L 89% of the EPA limit 10000 µg/L Main supplier: WESTBURY WD · 20,500 people · 2019	1/1	SYR4
Copper	360 µg/L 28% of the EPA limit 1300 µg/L Main supplier: WESTBURY WD · 20,500 people · 2019	1/1	SYR4
Fluoride	214 µg/L 5.4% of the EPA limit 4000 µg/L Main supplier: WESTBURY WD · 20,500 people · 2019	1/1	SYR4
Barium	31 µg/L 1.6% of the EPA limit 2000 µg/L Main supplier: WESTBURY WD · 20,500 people · 2019	1/1	SYR4
Lead	6.08 µg/L 41% of the EPA limit 15 µg/L Main supplier: WESTBURY WD · 20,500 people · 2019	1/1	SYR4
Combined Radium (-226 And -228)	4.0315 pCi/L 81% of the EPA limit 5 pCi/L Main supplier: WESTBURY WD · 20,500 people · 2019	1/1	SYR4
Gross Alpha, Excl. Radon And U	3.924 pCi/L 26% of the EPA limit 15 pCi/L Main supplier: WESTBURY WD · 20,500 people · 2019	1/1	SYR4
Combined Uranium	3.87 µg/L 13% of the EPA limit 30 µg/L Main supplier: WESTBURY WD · 20,500 people · 2019	1/1	SYR4
Gross Beta Particle Activity	3.3325 pCi/L No EPA limit set Main supplier: WESTBURY WD · 20,500 people · 2019	1/1	SYR4
Tetrachloroethylene	3 µg/L 60% of the EPA limit 5 µg/L Main supplier: WESTBURY WD · 20,500 people · 2019	1/1	SYR4
Toluene	1.95 µg/L 0.2% of the EPA limit 1000 µg/L Main supplier: WESTBURY WD · 20,500 people · 2019	1/1	SYR4
Thallium, Total	1.8755 µg/L 94% of the EPA limit 2 µg/L Main supplier: WESTBURY WD · 20,500 people · 2019	1/1	SYR4
Cadmium	1.62 µg/L 32% of the EPA limit 5 µg/L Main supplier: WESTBURY WD · 20,500 people · 2019	1/1	SYR4
1,1-Dichloroethylene	1.4 µg/L 20% of the EPA limit 7 µg/L Main supplier: WESTBURY WD · 20,500 people · 2019	1/1	SYR4
Antimony, Total	1.373 µg/L 23% of the EPA limit 6 µg/L Main supplier: WESTBURY WD · 20,500 people · 2019	1/1	SYR4
Beryllium, Total	1.33 µg/L 33% of the EPA limit 4 µg/L Main supplier: WESTBURY WD · 20,500 people · 2019	1/1	SYR4
1,1,1-Trichloroethane	1.1 µg/L 0.6% of the EPA limit 200 µg/L Main supplier: WESTBURY WD · 20,500 people · 2019	1/1	SYR4
Trichloroethylene	1.1 µg/L 22% of the EPA limit 5 µg/L Main supplier: WESTBURY WD · 20,500 people · 2019	1/1	SYR4
cis-1,2-Dichloroethylene	0.5700 µg/L 0.8% of the EPA limit 70 µg/L Main supplier: WESTBURY WD · 20,500 people · 2019	1/1	SYR4
Pentachlorophenol	0.1167 µg/L 12% of the EPA limit 1 µg/L Main supplier: WESTBURY WD · 20,500 people · 2019	1/1	SYR4
Ethylene Dibromide	0.0204 µg/L 41% of the EPA limit 0.0500 µg/L Main supplier: WESTBURY WD · 20,500 people · 2019	1/1	SYR4
PFOA	0.0076 µg/L No EPA limit set Main supplier: WESTBURY WD · 20,500 people · 2025	1/1	UCMR-5
Pfpea	0.0035 µg/L No EPA limit set Main supplier: WESTBURY WD · 20,500 people · 2025	1/1	UCMR-5
Pfhxa	0.0033 µg/L No EPA limit set Main supplier: WESTBURY WD · 20,500 people · 2025	1/1	UCMR-5
Lead	0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: WESTBURY WD · 20,500 people · 2023	1/1	LCR

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 the system's samples — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately. These are the utilities' own EPA-reported results, not a city-wide average. A detection means the lab measured the substance — it isn't the same as exceeding a legal limit. Hover a source tag to see the EPA program and years behind each figure.

Water suppliers serving Westbury

Supplier	Population served
WESTBURY WD	20,500

Frequently asked questions about Westbury tap water

Is Westbury tap water safe to drink?

EPA testing detected 26 contaminants in the water serving Westbury. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.

How many water suppliers serve Westbury?

1 public water supplier report drinking-water monitoring for Westbury, New York to the EPA. Each is listed above with its population served.

What contaminants are in Westbury's water?

The contaminants EPA monitoring detected in Westbury include Nitrate-Nitrite, Nitrate, Copper, Fluoride, Barium. The full list, with the level at the main supplier and the data source, is in the table above.

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.