What was found in Lynbrook'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 |
|---|---|---|---|
| Copper | 166.05 µg/L 13% of the EPA limit 1300 µg/L Main supplier: LIBERTY UTILITIES NEW YORK - LYNBROOK · 220,000 people · 2019 | 1/1 | SYR4 |
| Fluoride | 140 µg/L 3.5% of the EPA limit 4000 µg/L Main supplier: LIBERTY UTILITIES NEW YORK - LYNBROOK · 220,000 people · 2019 | 1/1 | SYR4 |
| Nitrate | 140 µg/L 1.4% of the EPA limit 10000 µg/L Main supplier: LIBERTY UTILITIES NEW YORK - LYNBROOK · 220,000 people · 2019 | 1/1 | SYR4 |
| Nitrate-Nitrite | 132 µg/L 1.3% of the EPA limit 10000 µg/L Main supplier: LIBERTY UTILITIES NEW YORK - LYNBROOK · 220,000 people · 2019 | 1/1 | SYR4 |
| Barium | 26 µg/L 1.3% of the EPA limit 2000 µg/L Main supplier: LIBERTY UTILITIES NEW YORK - LYNBROOK · 220,000 people · 2019 | 1/1 | SYR4 |
| Lithium | 14.9 µg/L No EPA limit set Main supplier: LIBERTY UTILITIES NEW YORK - LYNBROOK · 220,000 people · 2025 | 1/1 | UCMR-5 |
| Chromium | 10 µg/L 10% of the EPA limit 100 µg/L Main supplier: LIBERTY UTILITIES NEW YORK - LYNBROOK · 220,000 people · 2019 | 1/1 | SYR4 |
| Tetrachloroethylene | 9.41 µg/L 188% of the EPA limit, at the 95th percentile of samples — 5 µg/L Main supplier: LIBERTY UTILITIES NEW YORK - LYNBROOK · 220,000 people · 2019 | 1/1 | SYR4 |
| TTHM | 9.18 µg/L 11% of the EPA limit 80 µg/L Main supplier: LIBERTY UTILITIES NEW YORK - LYNBROOK · 220,000 people · 2019 | 1/1 | SYR4 |
| Lead | 7.49 µg/L 50% of the EPA limit 15 µg/L Main supplier: LIBERTY UTILITIES NEW YORK - LYNBROOK · 220,000 people · 2019 | 1/1 | SYR4 |
| Combined Uranium | 5.018 µg/L 17% of the EPA limit 30 µg/L Main supplier: LIBERTY UTILITIES NEW YORK - LYNBROOK · 220,000 people · 2019 | 1/1 | SYR4 |
| Gross Alpha, Excl. Radon And U | 4.9555 pCi/L 33% of the EPA limit 15 pCi/L Main supplier: LIBERTY UTILITIES NEW YORK - LYNBROOK · 220,000 people · 2019 | 1/1 | SYR4 |
| Gross Beta Particle Activity | 4.865 pCi/L No EPA limit set Main supplier: LIBERTY UTILITIES NEW YORK - LYNBROOK · 220,000 people · 2019 | 1/1 | SYR4 |
| Combined Radium (-226 And -228) | 4.2725 pCi/L 85% of the EPA limit 5 pCi/L Main supplier: LIBERTY UTILITIES NEW YORK - LYNBROOK · 220,000 people · 2019 | 1/1 | SYR4 |
| Monochloroacetic Acid | 3.12 µg/L No EPA limit set Main supplier: LIBERTY UTILITIES NEW YORK - LYNBROOK · 220,000 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 3.1 µg/L No EPA limit set Main supplier: LIBERTY UTILITIES NEW YORK - LYNBROOK · 220,000 people · 2019 | 1/1 | SYR4 |
| Bromoform | 2.775 µg/L No EPA limit set Main supplier: LIBERTY UTILITIES NEW YORK - LYNBROOK · 220,000 people · 2019 | 1/1 | SYR4 |
| Chloroform | 2.476 µg/L No EPA limit set Main supplier: LIBERTY UTILITIES NEW YORK - LYNBROOK · 220,000 people · 2019 | 1/1 | SYR4 |
| Arsenic | 2.055 µg/L 21% of the EPA limit 10 µg/L Main supplier: LIBERTY UTILITIES NEW YORK - LYNBROOK · 220,000 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 2 µg/L No EPA limit set Main supplier: LIBERTY UTILITIES NEW YORK - LYNBROOK · 220,000 people · 2019 | 1/1 | SYR4 |
| Thallium, Total | 1.8335 µg/L 92% of the EPA limit 2 µg/L Main supplier: LIBERTY UTILITIES NEW YORK - LYNBROOK · 220,000 people · 2019 | 1/1 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 1.7 µg/L 28% of the EPA limit 6 µg/L Main supplier: LIBERTY UTILITIES NEW YORK - LYNBROOK · 220,000 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 1.6 µg/L No EPA limit set Main supplier: LIBERTY UTILITIES NEW YORK - LYNBROOK · 220,000 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 1.495 µg/L 2.5% of the EPA limit 60 µg/L Main supplier: LIBERTY UTILITIES NEW YORK - LYNBROOK · 220,000 people · 2019 | 1/1 | SYR4 |
| Monobromoacetic Acid | 1.38 µg/L No EPA limit set Main supplier: LIBERTY UTILITIES NEW YORK - LYNBROOK · 220,000 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 1.26 µg/L No EPA limit set Main supplier: LIBERTY UTILITIES NEW YORK - LYNBROOK · 220,000 people · 2019 | 1/1 | SYR4 |
| Trichloroethylene | 1.21 µg/L 24% of the EPA limit 5 µg/L Main supplier: LIBERTY UTILITIES NEW YORK - LYNBROOK · 220,000 people · 2019 | 1/1 | SYR4 |
| cis-1,2-Dichloroethylene | 0.9350 µg/L 1.3% of the EPA limit 70 µg/L Main supplier: LIBERTY UTILITIES NEW YORK - LYNBROOK · 220,000 people · 2019 | 1/1 | SYR4 |
| Antimony, Total | 0.8100 µg/L 14% of the EPA limit 6 µg/L Main supplier: LIBERTY UTILITIES NEW YORK - LYNBROOK · 220,000 people · 2019 | 1/1 | SYR4 |
| Beryllium, Total | 0.5000 µg/L 13% of the EPA limit 4 µg/L Main supplier: LIBERTY UTILITIES NEW YORK - LYNBROOK · 220,000 people · 2019 | 1/1 | SYR4 |
| PFHXS | 0.0063 µg/L No EPA limit set Main supplier: LIBERTY UTILITIES NEW YORK - LYNBROOK · 220,000 people · 2025 | 1/1 | UCMR-5 |
| PFOS | 0.0051 µg/L No EPA limit set Main supplier: LIBERTY UTILITIES NEW YORK - LYNBROOK · 220,000 people · 2025 | 1/1 | UCMR-5 |
| Lead | 0.0042 mg/L 28% of the EPA limit 0.0150 mg/L Main supplier: LIBERTY UTILITIES NEW YORK - LYNBROOK · 220,000 people · 2025 | 1/1 | LCR |
| PFNA | 0.0041 µg/L No EPA limit set Main supplier: LIBERTY UTILITIES NEW YORK - LYNBROOK · 220,000 people · 2025 | 1/1 | UCMR-5 |
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 Lynbrook
| Supplier | Population served |
|---|---|
| LIBERTY UTILITIES NEW YORK - LYNBROOK | 220,000 |
Frequently asked questions about Lynbrook tap water
Is Lynbrook tap water safe to drink?
EPA testing detected 34 contaminants in the water serving Lynbrook. 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 Lynbrook?
1 public water supplier report drinking-water monitoring for Lynbrook, New York to the EPA. Each is listed above with its population served.
What contaminants are in Lynbrook's water?
The contaminants EPA monitoring detected in Lynbrook include Copper, Fluoride, Nitrate, Nitrate-Nitrite, 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.