Tap WaterIndex

← New York

Tap water quality report

Lincoln Hall School

EPA monitoring tested this supplier for 75 contaminants and detected 18. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

75
contaminants tested
18
detected
500
people served
0
health-based violations
New York rankingsLead in New YorkPFAS in New York
Water source
Ground water
Ownership
Private
Counties served
Westchester

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
752
violations on file
0
still open
ViolationTypeStatusPeriod
MON Monitoring Archived 2025-11-01 → 2025-11-30
MON Monitoring Archived 2025-11-01 → 2025-11-30
MR Monitoring Resolved 2023-10-01
MR Monitoring Resolved 2023-10-01
MR Monitoring Resolved 2023-10-01
MR Monitoring Resolved 2023-10-01
MR Monitoring Resolved 2019-01-01 → 2021-12-31
MR Monitoring Resolved 2019-01-01 → 2021-12-31
MR Monitoring Resolved 2019-01-01 → 2021-12-31
MR Monitoring Resolved 2019-01-01 → 2021-12-31

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.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Combined Radium (-226 And -228)
1.75225 pCi/L 35%
of the EPA limit 5 pCi/L
worst single sample: 1.819 pCi/L
16/16 SYR4 2013–2019
Combined Uranium
12.8308 µg/L 43%
of the EPA limit 30 µg/L
worst single sample: 14.4232 µg/L
16/16 SYR4 2013–2019
Nitrate
750 µg/L 7.5%
of the EPA limit 10000 µg/L
 14/16 SYR4 2012–2019
TTHM
40 µg/L 50%
of the EPA limit 80 µg/L
worst single sample: 46 µg/L
13/14 SYR4 2012–2019
Lead
0.0106 mg/L 71%
of the EPA limit 0.0150 mg/L
 12/12 LCR 2024
Total Haloacetic Acids (HAA5)
5.1585 µg/L 8.6%
of the EPA limit 60 µg/L
worst single sample: 5.23 µg/L
12/14 SYR4 2012–2019
Bromodichloromethane
6.875 µg/L
No EPA limit set
worst single sample: 6.9 µg/L
11/12 SYR4 2012–2019
Chloroform
20 µg/L
No EPA limit set
worst single sample: 26 µg/L
11/12 SYR4 2012–2019
Dibromochloromethane
3.175 µg/L
No EPA limit set
worst single sample: 3.48 µg/L
11/12 SYR4 2012–2019
Dichloroacetic Acid
3.11 µg/L
No EPA limit set
worst single sample: 3.2 µg/L
10/12 SYR4 2012–2019
Nitrate-Nitrite
603 µg/L 6%
of the EPA limit 10000 µg/L
worst single sample: 750 µg/L
7/8 SYR4 2012–2019
Bromoform
1.18 µg/L
No EPA limit set
 6/12 SYR4 2012–2019
Dibromoacetic Acid
1.1765 µg/L
No EPA limit set
worst single sample: 1.19 µg/L
4/12 SYR4 2012–2019
Barium
35.78 µg/L 1.8%
of the EPA limit 2000 µg/L
worst single sample: 37.2 µg/L
3/3 SYR4 2012–2018
Gross Alpha, Excl. Radon And U
0.4710 pCi/L 3.1%
of the EPA limit 15 pCi/L
worst single sample: 0.4800 pCi/L
2/9 SYR4 2018–2019
Trichloroacetic Acid
1.1475 µg/L
No EPA limit set
worst single sample: 1.15 µg/L
2/12 SYR4 2012–2019
Gross Beta Particle Activity
2.05 pCi/L
No EPA limit set
 1/1 SYR4 2018
Monochloroacetic Acid
1.26 µg/L
No EPA limit set
 1/12 SYR4 2012–2019
57 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DAntimony, TotalArsenicAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebEthylene DibromideEndrinEthylbenzeneFluorideHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
MADERA, VINCENT
Phone
914-248-7474
Email
[email protected]

Frequently asked questions about Lincoln Hall School

Is Lincoln Hall School tap water safe to drink?

EPA monitoring detected 18 contaminants in Lincoln Hall School'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 Lincoln Hall School's water?

EPA monitoring detected Combined Radium (-226 And -228), Combined Uranium, Nitrate, TTHM, Lead, and others. The full list with the level and data source for each is above.

How many people does Lincoln Hall School serve?

Lincoln Hall School reports serving 500 people in New York, per its EPA record.

Has Lincoln Hall School had any water quality violations?

The EPA has 752 violations on file for Lincoln Hall School, 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.