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.
15
health-based violations
15
violations on file
0
still open
| Violation | Type | Status | Period |
|---|---|---|---|
| TT | Health-based | Resolved | 2024-07-01 → 2024-12-31 |
| TT | Health-based | Resolved | 2024-07-01 → 2024-12-31 |
| TT | Health-based | Resolved | 2024-07-01 → 2024-12-31 |
| TT | Health-based | Resolved | 2024-07-01 → 2024-12-31 |
| TT | Health-based | Resolved | 2024-07-01 → 2024-12-31 |
| TT | Health-based | Resolved | 2024-01-01 → 2024-06-30 |
| TT | Health-based | Resolved | 2024-01-01 → 2024-06-30 |
| TT | Health-based | Resolved | 2024-01-01 → 2024-06-30 |
| TT | Health-based | Resolved | 2024-01-01 → 2024-06-30 |
| TT | Health-based | Resolved | 2024-01-01 → 2024-06-30 |
PFAS detected
PFAS are industrial “forever chemicals”. These are the EPA's latest
nationwide test results (2023–2025).
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 |
|---|---|---|---|---|
| Lead | 7.49 µg/L 50% of the EPA limit 15 µg/L
worst single sample: 53 µg/L | 207/487 | SYR4 | 2012–2019 |
| Copper | 166.05 µg/L 13% of the EPA limit 1300 µg/L
worst single sample: 570 µg/L | 194/354 | SYR4 | 2012–2019 |
| Dibromochloromethane | 3.1 µg/L No EPA limit set
worst single sample: 4.4 µg/L | 175/388 | SYR4 | 2012–2019 |
| Bromoform | 2.775 µg/L No EPA limit set
worst single sample: 3.6 µg/L | 146/388 | SYR4 | 2012–2019 |
| Bromodichloromethane | 2 µg/L No EPA limit set
worst single sample: 4.1 µg/L | 107/388 | SYR4 | 2012–2019 |
| Nitrate | 140 µg/L 1.4% of the EPA limit 10000 µg/L
worst single sample: 290 µg/L | 100/666 | SYR4 | 2012–2019 |
| Barium | 26 µg/L 1.3% of the EPA limit 2000 µg/L
worst single sample: 200 µg/L | 85/353 | SYR4 | 2012–2019 |
| TTHM | 9.18 µg/L 11% of the EPA limit 80 µg/L
worst single sample: 14.9 µg/L | 77/119 | SYR4 | 2013–2019 |
| Arsenic | 2.055 µg/L 21% of the EPA limit 10 µg/L
worst single sample: 14 µg/L | 50/450 | SYR4 | 2012–2019 |
| Nitrate-Nitrite | 132 µg/L 1.3% of the EPA limit 10000 µg/L
worst single sample: 290 µg/L | 49/331 | SYR4 | 2012–2019 |
| Tetrachloroethylene | 9.41 µg/L 188% of the EPA limit, at the 95th percentile of samples — 5 µg/L
worst single sample: 13.7 µg/L | 43/1239 | SYR4 | 2012–2019 |
| Chloroform | 2.476 µg/L No EPA limit set
worst single sample: 5.1 µg/L | 42/388 | SYR4 | 2012–2019 |
| Combined Uranium | 5.018 µg/L 17% of the EPA limit 30 µg/L
worst single sample: 8.3 µg/L | 35/104 | SYR4 | 2013–2019 |
| Gross Beta Particle Activity | 4.865 pCi/L No EPA limit set
worst single sample: 5.94 pCi/L | 35/35 | SYR4 | 2013–2019 |
| Combined Radium (-226 And -228) | 4.2725 pCi/L 85% of the EPA limit 5 pCi/L
worst single sample: 5 pCi/L | 32/105 | SYR4 | 2013–2019 |
| Trichloroethylene | 1.21 µg/L 24% of the EPA limit 5 µg/L
worst single sample: 2.2 µg/L | 30/1239 | SYR4 | 2012–2019 |
| Lead | 0.0042 mg/L 28% of the EPA limit 0.0150 mg/L | 20/20 | LCR | 2025 |
| Beryllium, Total | 0.5000 µg/L 13% of the EPA limit 4 µg/L | 18/364 | SYR4 | 2012–2019 |
| Gross Alpha, Excl. Radon And U | 4.9555 pCi/L 33% of the EPA limit 15 pCi/L
worst single sample: 5.44 pCi/L | 18/104 | SYR4 | 2013–2019 |
| cis-1,2-Dichloroethylene | 0.9350 µg/L 1.3% of the EPA limit 70 µg/L
worst single sample: 1.1 µg/L | 12/1239 | SYR4 | 2012–2019 |
| Dibromoacetic Acid | 1.26 µg/L No EPA limit set
worst single sample: 1.3 µg/L | 9/186 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 1.495 µg/L 2.5% of the EPA limit 60 µg/L
worst single sample: 1.6 µg/L | 8/72 | SYR4 | 2017–2019 |
| Monobromoacetic Acid | 1.38 µg/L No EPA limit set
worst single sample: 1.4 µg/L | 5/186 | SYR4 | 2012–2019 |
| Thallium, Total | 1.8335 µg/L 92% of the EPA limit 2 µg/L
worst single sample: 2 µg/L | 4/358 | SYR4 | 2012–2019 |
| Monochloroacetic Acid | 3.12 µg/L No EPA limit set
worst single sample: 3.2 µg/L | 3/186 | SYR4 | 2012–2019 |
| Antimony, Total | 0.8100 µg/L 14% of the EPA limit 6 µg/L | 1/355 | SYR4 | 2012–2019 |
| Chromium | 10 µg/L 10% of the EPA limit 100 µg/L | 1/355 | SYR4 | 2012–2019 |
| Di(2-ethylhexyl) Phthalate | 1.7 µg/L 28% of the EPA limit 6 µg/L | 1/194 | SYR4 | 2012–2019 |
| Fluoride | 140 µg/L 3.5% of the EPA limit 4000 µg/L | 1/343 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 1.6 µg/L No EPA limit set | 1/186 | SYR4 | 2012–2019 |
| Lithium | 14.9 µg/L No EPA limit set | 1/35 | UCMR-5 | 2025 |
78 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-PF3ONSAdonaAtrazineBhc-GammaBenzeneBenzo(A)PyreneChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneDichloromethaneDalaponDi(2-ethylhexyl) AdipateDichloroacetic AcidDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPfmbaPfmpaPFOAPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneVinyl ChlorideO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene
Utility contact
Frequently asked questions about Liberty Utilities New York - Lynbrook
Is Liberty Utilities New York - Lynbrook tap water safe to drink?
EPA monitoring detected 34 contaminants in Liberty Utilities New York - Lynbrook'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 Liberty Utilities New York - Lynbrook's water?
EPA monitoring detected Lead, Copper, Dibromochloromethane, Bromoform, Bromodichloromethane, and others. The full list with the level and data source for each is above.
How many people does Liberty Utilities New York - Lynbrook serve?
Liberty Utilities New York - Lynbrook reports serving 220,000 people in New York, per its EPA record.
Has Liberty Utilities New York - Lynbrook had any water quality violations?
The EPA has 15 violations on file for Liberty Utilities New York - Lynbrook, of which 15 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.