Tap WaterIndex

← New York

Tap water quality report

Westchester Joint Water Works

EPA monitoring tested this supplier for 106 contaminants and detected 16. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

106
contaminants tested
16
detected
59,629
people served
30
health-based violations
New York rankingsLead in New YorkPFAS in New York
Water source
Surface water
Ownership
Local government
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.

30
health-based violations
59
violations on file
9
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2019-07-01 → 2019-09-30
MCL Health-based Resolved 2019-07-01 → 2019-09-30
MCL Health-based Resolved 2019-07-01 → 2019-09-30
MCL Health-based Resolved 2019-07-01 → 2019-09-30
MCL Health-based Resolved 2019-07-01 → 2019-09-30
MCL Health-based Resolved 2019-04-01 → 2019-06-30
MCL Health-based Resolved 2019-04-01 → 2019-06-30
MCL Health-based Resolved 2019-04-01 → 2019-06-30
MCL Health-based Resolved 2019-04-01 → 2019-06-30
MCL Health-based Resolved 2019-04-01 → 2019-06-30

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
Bromodichloromethane
5.161 µg/L
No EPA limit set
worst single sample: 6.7 µg/L
230/230 SYR4 2012–2019
Chloroform
46.885 µg/L
No EPA limit set
worst single sample: 62.8 µg/L
230/230 SYR4 2012–2019
TTHM
52.22 µg/L 65%
of the EPA limit 80 µg/L
worst single sample: 68.3 µg/L
230/230 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
58.415 µg/L 97%
of the EPA limit 60 µg/L
worst single sample: 85.6 µg/L
230/230 SYR4 2012–2019
Trichloroacetic Acid
42.355 µg/L
No EPA limit set
worst single sample: 66.4 µg/L
230/230 SYR4 2012–2019
Dichloroacetic Acid
18.8 µg/L
No EPA limit set
worst single sample: 26.8 µg/L
229/230 SYR4 2012–2019
Monochloroacetic Acid
4.71 µg/L
No EPA limit set
worst single sample: 7.58 µg/L
53/230 SYR4 2012–2019
Lead
0.0030 mg/L 20%
of the EPA limit 0.0150 mg/L
 32/32 LCR 2027
Nitrate
231 µg/L 2.3%
of the EPA limit 10000 µg/L
 16/34 SYR4 2012–2019
Fluoride
806 µg/L 20%
of the EPA limit 4000 µg/L
worst single sample: 850 µg/L
12/17 SYR4 2012–2019
Dibromochloromethane
0.4770 µg/L
No EPA limit set
worst single sample: 0.5240 µg/L
11/230 SYR4 2012–2019
Barium
19.8 µg/L 1%
of the EPA limit 2000 µg/L
 7/17 SYR4 2012–2019
Lead
11.465 µg/L 76%
of the EPA limit 15 µg/L
worst single sample: 11.8 µg/L
2/2 SYR4 2017
Benzo(A)Pyrene
0.0200 µg/L 10%
of the EPA limit 0.2000 µg/L
 1/21 SYR4 2012–2019
Cyanide
1.5 µg/L 0.8%
of the EPA limit 200 µg/L
 1/17 SYR4 2012–2019
Dibromoacetic Acid
1.26 µg/L
No EPA limit set
 1/230 SYR4 2012–2019
90 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalArsenicAtrazineBhc-GammaBenzeneBeryllium, TotalBromoformChlorobenzeneCopperCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined Radium (-226 And -228)Combined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebEthylene DibromideEndrinEthylbenzeneGross Alpha, Excl. Radon And UHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidNetfosaaNfdhaNmefosaaNitrate-NitriteNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
MURPHY, THOMAS A
Phone
914-777-7722
Email
[email protected]

Frequently asked questions about Westchester Joint Water Works

Is Westchester Joint Water Works tap water safe to drink?

EPA monitoring detected 16 contaminants in Westchester Joint Water Works'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 Westchester Joint Water Works's water?

EPA monitoring detected Bromodichloromethane, Chloroform, TTHM, Total Haloacetic Acids (HAA5), Trichloroacetic Acid, and others. The full list with the level and data source for each is above.

How many people does Westchester Joint Water Works serve?

Westchester Joint Water Works reports serving 59,629 people in New York, per its EPA record.

Has Westchester Joint Water Works had any water quality violations?

The EPA has 59 violations on file for Westchester Joint Water Works, of which 30 are health-based (a contaminant limit or required treatment was breached) and 9 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.