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.
0
health-based violations
1,476
violations on file
0
still open
| Violation | Type | Status | Period |
|---|---|---|---|
| MR | Monitoring | Resolved | 2002-07-01 → 2003-12-31 |
| MR | Monitoring | Resolved | 2002-07-01 → 2003-12-31 |
| MR | Monitoring | Resolved | 2002-07-01 → 2003-12-31 |
| MR | Monitoring | Resolved | 2002-07-01 → 2003-12-31 |
| MR | Monitoring | Resolved | 2002-07-01 → 2003-12-31 |
| MR | Monitoring | Resolved | 2002-07-01 → 2003-12-31 |
| MR | Monitoring | Resolved | 2002-07-01 → 2003-12-31 |
| MR | Monitoring | Resolved | 2002-07-01 → 2003-12-31 |
| MR | Monitoring | Resolved | 2002-07-01 → 2003-12-31 |
| MR | Monitoring | Resolved | 2002-07-01 → 2003-12-31 |
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 |
|---|---|---|---|---|
| Nitrate | 8290 µg/L 83% of the EPA limit 10000 µg/L
worst single sample: 12200 µg/L | 2216/2232 | SYR4 | 2012–2019 |
| Nitrate-Nitrite | 8470 µg/L 85% of the EPA limit 10000 µg/L
worst single sample: 12200 µg/L | 561/568 | SYR4 | 2012–2019 |
| Tetrachloroethylene | 4.035 µg/L 81% of the EPA limit 5 µg/L
worst single sample: 7.5 µg/L | 214/1099 | SYR4 | 2012–2019 |
| Trichloroethylene | 7.5 µg/L 150% of the EPA limit, at the 95th percentile of samples — 5 µg/L
worst single sample: 12.8 µg/L | 161/1098 | SYR4 | 2012–2019 |
| 1,1-Dichloroethylene | 1.5 µg/L 21% of the EPA limit 7 µg/L
worst single sample: 2.1 µg/L | 111/1100 | SYR4 | 2012–2019 |
| Barium | 36.63 µg/L 1.8% of the EPA limit 2000 µg/L
worst single sample: 55 µg/L | 110/122 | SYR4 | 2012–2019 |
| cis-1,2-Dichloroethylene | 12.46 µg/L 18% of the EPA limit 70 µg/L
worst single sample: 19.1 µg/L | 67/1102 | SYR4 | 2012–2019 |
| Copper | 99.95 µg/L 7.7% of the EPA limit 1300 µg/L
worst single sample: 170 µg/L | 46/120 | SYR4 | 2012–2019 |
| Chloroform | 0.9520 µg/L No EPA limit set
worst single sample: 1.07 µg/L | 37/529 | SYR4 | 2012–2019 |
| Selenium | 2.9575 µg/L 5.9% of the EPA limit 50 µg/L
worst single sample: 4.3 µg/L | 36/124 | SYR4 | 2012–2019 |
| Combined Uranium | 5.45713 µg/L 18% of the EPA limit 30 µg/L
worst single sample: 6.1537 µg/L | 26/28 | SYR4 | 2012–2019 |
| Bromoform | 2.22 µg/L No EPA limit set
worst single sample: 2.4 µg/L | 25/529 | SYR4 | 2012–2019 |
| 1,1,1-Trichloroethane | 1.31 µg/L 0.7% of the EPA limit 200 µg/L
worst single sample: 1.5 µg/L | 20/1102 | SYR4 | 2012–2019 |
| Gross Beta Particle Activity | 4.993 pCi/L No EPA limit set
worst single sample: 6.82 pCi/L | 19/20 | SYR4 | 2016–2019 |
| TTHM | 1.816 µg/L 2.3% of the EPA limit 80 µg/L
worst single sample: 2.2 µg/L | 17/508 | SYR4 | 2012–2019 |
| Dibromochloromethane | 0.7900 µg/L No EPA limit set | 10/530 | SYR4 | 2012–2019 |
| Lead | 0.0016 mg/L 11% of the EPA limit 0.0150 mg/L | 9/9 | LCR | 2023 |
| Fluoride | 173 µg/L 4.3% of the EPA limit 4000 µg/L
worst single sample: 180 µg/L | 8/123 | SYR4 | 2012–2019 |
| Lead | 8.242 µg/L 55% of the EPA limit 15 µg/L
worst single sample: 9.18 µg/L | 8/123 | SYR4 | 2012–2019 |
| Nitrite | 2382 µg/L 238% of the EPA limit, at the 95th percentile of samples — 1000 µg/L
worst single sample: 2800 µg/L | 5/572 | SYR4 | 2012–2019 |
| Chromium | 2.725 µg/L 2.7% of the EPA limit 100 µg/L
worst single sample: 2.8 µg/L | 4/128 | SYR4 | 2012–2019 |
| Combined Radium (-226 And -228) | 8.8544 pCi/L 177% of the EPA limit, at the 95th percentile of samples — 5 pCi/L
worst single sample: 9.696 pCi/L | 3/32 | SYR4 | 2012–2019 |
| 1,1,2-Trichloroethane | 0.6990 µg/L 14% of the EPA limit 5 µg/L
worst single sample: 0.7000 µg/L | 2/1103 | SYR4 | 2012–2019 |
| Carbon Tetrachloride | 0.5950 µg/L 12% of the EPA limit 5 µg/L
worst single sample: 0.6000 µg/L | 2/1103 | SYR4 | 2012–2019 |
| Dibromoacetic Acid | 1.795 µg/L No EPA limit set
worst single sample: 1.8 µg/L | 2/26 | SYR4 | 2014–2019 |
| Gross Alpha, Excl. Radon And U | 1.903 pCi/L 13% of the EPA limit 15 pCi/L
worst single sample: 1.95 pCi/L | 2/29 | SYR4 | 2012–2019 |
| 1,2-Dichloroethane | 0.5100 µg/L 10% of the EPA limit 5 µg/L | 1/1103 | SYR4 | 2012–2019 |
| Antimony, Total | 0.8700 µg/L 14% of the EPA limit 6 µg/L | 1/123 | SYR4 | 2012–2019 |
| Bromodichloromethane | 0.5000 µg/L No EPA limit set | 1/530 | SYR4 | 2012–2019 |
| Di(2-ethylhexyl) Phthalate | 0.7300 µg/L 12% of the EPA limit 6 µg/L | 1/73 | SYR4 | 2012–2018 |
| Toluene | 0.6300 µg/L 0.1% of the EPA limit 1000 µg/L | 1/1103 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 1.8 µg/L 3% of the EPA limit 60 µg/L | 1/6 | SYR4 | 2017–2019 |
76 contaminants tested, none detected
1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloropropane11Cl-PF3OUdS2,3,7,8-TCDD2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaArsenicAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranChlordaneDichloromethaneDalaponDi(2-ethylhexyl) AdipateDichloroacetic AcidDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNetfosaaNfdhaNmefosaaOxamylPFBSPfdaPfdoaPfeesaPfhpaPfhpsPFHXSPfmbaPfmpaPFOSPfpesPftaPftrdaPfunaPentachlorophenolPicloramSimazineStyreneThallium, TotalTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroacetic AcidVinyl ChlorideXylenes, TotalLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene
Utility contact
Frequently asked questions about Manhasset Lakeville Wd
Is Manhasset Lakeville Wd tap water safe to drink?
EPA monitoring detected 37 contaminants in Manhasset Lakeville Wd'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 Manhasset Lakeville Wd's water?
EPA monitoring detected Nitrate, Nitrate-Nitrite, Tetrachloroethylene, Trichloroethylene, 1,1-Dichloroethylene, and others. The full list with the level and data source for each is above.
How many people does Manhasset Lakeville Wd serve?
Manhasset Lakeville Wd reports serving 43,000 people in New York, per its EPA record.
Has Manhasset Lakeville Wd had any water quality violations?
The EPA has 1476 violations on file for Manhasset Lakeville Wd, 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.