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Tap water quality report

Roslyn, NY

EPA monitoring detected 22 contaminants across the 1 water supplier serving Roslyn. A detection doesn't automatically mean the water is unsafe — see the level at the main supplier for each below, with its EPA source and period.

1
water supplier
17,000
people served
22
contaminants found
New York rankings Lead in New York PFAS in New York

What was found in Roslyn'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.

ContaminantLevel vs EPA limitSuppliersSource
Nitrate
6335 µg/L 63%
of the EPA limit 10000 µg/L
Main supplier: ROSLYN WD · 17,000 people · 2019
1/1 SYR4
Nitrate-Nitrite
6200 µg/L 62%
of the EPA limit 10000 µg/L
Main supplier: ROSLYN WD · 17,000 people · 2019
1/1 SYR4
Copper
224 µg/L 17%
of the EPA limit 1300 µg/L
Main supplier: ROSLYN WD · 17,000 people · 2019
1/1 SYR4
Barium
39 µg/L 2%
of the EPA limit 2000 µg/L
Main supplier: ROSLYN WD · 17,000 people · 2019
1/1 SYR4
Tetrachloroethylene
19.95 µg/L 399%
of the EPA limit, at the 95th percentile of samples — 5 µg/L
Main supplier: ROSLYN WD · 17,000 people · 2019
1/1 SYR4
Lead
7.1 µg/L 47%
of the EPA limit 15 µg/L
Main supplier: ROSLYN WD · 17,000 people · 2019
1/1 SYR4
Chromium
7.095 µg/L 7.1%
of the EPA limit 100 µg/L
Main supplier: ROSLYN WD · 17,000 people · 2019
1/1 SYR4
TTHM
6.74 µg/L 8.4%
of the EPA limit 80 µg/L
Main supplier: ROSLYN WD · 17,000 people · 2019
1/1 SYR4
Arsenic
3.2 µg/L 32%
of the EPA limit 10 µg/L
Main supplier: ROSLYN WD · 17,000 people · 2019
1/1 SYR4
Gross Beta Particle Activity
2.2355 pCi/L
No EPA limit set
Main supplier: ROSLYN WD · 17,000 people · 2019
1/1 SYR4
Combined Uranium
2.07525 µg/L 6.9%
of the EPA limit 30 µg/L
Main supplier: ROSLYN WD · 17,000 people · 2019
1/1 SYR4
Combined Radium (-226 And -228)
2.0395 pCi/L 41%
of the EPA limit 5 pCi/L
Main supplier: ROSLYN WD · 17,000 people · 2019
1/1 SYR4
Gross Alpha, Excl. Radon And U
2.0315 pCi/L 14%
of the EPA limit 15 pCi/L
Main supplier: ROSLYN WD · 17,000 people · 2019
1/1 SYR4
cis-1,2-Dichloroethylene
1.182 µg/L 1.7%
of the EPA limit 70 µg/L
Main supplier: ROSLYN WD · 17,000 people · 2019
1/1 SYR4
Trichloroethylene
0.9700 µg/L 19%
of the EPA limit 5 µg/L
Main supplier: ROSLYN WD · 17,000 people · 2019
1/1 SYR4
Toluene
0.9000 µg/L 0.1%
of the EPA limit 1000 µg/L
Main supplier: ROSLYN WD · 17,000 people · 2019
1/1 SYR4
Antimony, Total
0.6500 µg/L 11%
of the EPA limit 6 µg/L
Main supplier: ROSLYN WD · 17,000 people · 2019
1/1 SYR4
1,1-Dichloroethylene
0.5950 µg/L 8.5%
of the EPA limit 7 µg/L
Main supplier: ROSLYN WD · 17,000 people · 2019
1/1 SYR4
Ethylene Dibromide
0.0200 µg/L 40%
of the EPA limit 0.0500 µg/L
Main supplier: ROSLYN WD · 17,000 people · 2019
1/1 SYR4
PFOA
0.0056 µg/L
No EPA limit set
Main supplier: ROSLYN WD · 17,000 people · 2025
1/1 UCMR-5
Pfpea
0.0030 µg/L
No EPA limit set
Main supplier: ROSLYN WD · 17,000 people · 2025
1/1 UCMR-5
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
Main supplier: ROSLYN WD · 17,000 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 Roslyn

SupplierPopulation served
ROSLYN WD 17,000

Frequently asked questions about Roslyn tap water

Is Roslyn tap water safe to drink?

EPA testing detected 22 contaminants in the water serving Roslyn. 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 Roslyn?

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

What contaminants are in Roslyn's water?

The contaminants EPA monitoring detected in Roslyn include Nitrate, Nitrate-Nitrite, Copper, Barium, Tetrachloroethylene. 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.