Is Larchmont Village Tap Water Safe? Quality Report

Water source: SWP
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.

health-based violations

violations on file

still open

Violation	Type	Status	Period
MR	Monitoring	Resolved	2021-01-01 → 2021-03-31
MR	Monitoring	Resolved	2021-01-01 → 2021-03-31
MR	Monitoring	Resolved	2021-01-01 → 2021-03-31
MR	Monitoring	Resolved	2021-01-01 → 2021-03-31
MR	Monitoring	Resolved	2021-01-01 → 2021-03-31
MR	Monitoring	Resolved	2021-01-01 → 2021-03-31
MR	Monitoring	Resolved	2021-01-01 → 2021-03-31
MR	Monitoring	Resolved	2021-01-01 → 2021-03-31
Other	Monitoring	Resolved	2015-07-01
Other	Monitoring	Resolved	2015-07-01

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
Bromodichloromethane	4.26 µg/L No EPA limit set worst single sample: 4.45 µg/L	67/67	SYR4	2012–2019
Chloroform	37.41 µg/L No EPA limit set worst single sample: 40.9 µg/L	67/67	SYR4	2012–2019
TTHM	42.09 µg/L 53% of the EPA limit 80 µg/L worst single sample: 44.7 µg/L	67/67	SYR4	2012–2019
Dichloroacetic Acid	12.725 µg/L No EPA limit set worst single sample: 13.7 µg/L	66/67	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	32.75 µg/L 55% of the EPA limit 60 µg/L worst single sample: 39.8 µg/L	66/67	SYR4	2012–2019
Trichloroacetic Acid	21.5 µg/L No EPA limit set worst single sample: 26.9 µg/L	66/67	SYR4	2012–2019
Lead	0.0049 mg/L 33% of the EPA limit 0.0150 mg/L	21/21	LCR	2026
Dibromochloromethane	0.3920 µg/L No EPA limit set worst single sample: 0.4000 µg/L	5/67	SYR4	2012–2019
Monochloroacetic Acid	1.309 µg/L No EPA limit set worst single sample: 1.31 µg/L	3/67	SYR4	2012–2019

33 contaminants tested, none detected

11Cl-PF3OUdS4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaBromoformDibromoacetic AcidHfpo-DaMonobromoacetic AcidNetfosaaNfdhaNmefosaaPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaLithium

Utility contact

Contact: KATZIN, AYLONE
Email: [email protected]

Frequently asked questions about Larchmont Village

Is Larchmont Village tap water safe to drink?

EPA monitoring detected 9 contaminants in Larchmont Village'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 Larchmont Village's water?

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

How many people does Larchmont Village serve?

Larchmont Village reports serving 6,485 people in New York, per its EPA record.

Has Larchmont Village had any water quality violations?

The EPA has 18 violations on file for Larchmont Village, 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.