No health-based violations on EPA record since 2016.
Serves about 6,485 people (1,740 connections) with surface water bought from Veolia Water New York, Inc. RD-1 and Westchester Joint Water Works.
From EPA's record for NY5903433. PurityMap is independent of Larchmont Village.
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No health-based violations in the last 10 years, from EPA's SDWIS compliance database.
EPA required this system to test for 30 unregulated and emerging contaminants, from January 2023 to October 2023.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| 11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-17 to 2023-10-16 | UCMR5 Analytical Results: LARCHMONT VILLAGE (NY5903433) |
| 1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-17 to 2023-10-16 | UCMR5 Analytical Results: LARCHMONT VILLAGE (NY5903433) |
| 1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-17 to 2023-10-16 | UCMR5 Analytical Results: LARCHMONT VILLAGE (NY5903433) |
| 1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-17 to 2023-10-16 | UCMR5 Analytical Results: LARCHMONT VILLAGE (NY5903433) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-17 to 2023-10-16 | UCMR5 Analytical Results: LARCHMONT VILLAGE (NY5903433) |
| 9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-17 to 2023-10-16 | UCMR5 Analytical Results: LARCHMONT VILLAGE (NY5903433) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-01-17 to 2023-10-16 | UCMR5 Analytical Results: LARCHMONT VILLAGE (NY5903433) |
| Lithium | < 9 µg/L | 10 µg/L EPA health reference level (screening, not a legal limit)Screening level, not a legal limit | Not detected above the reporting limit | 2023-01-17 to 2023-10-16 | UCMR5 Analytical Results: LARCHMONT VILLAGE (NY5903433) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-17 to 2023-10-16 | UCMR5 Analytical Results: LARCHMONT VILLAGE (NY5903433) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-17 to 2023-10-16 | UCMR5 Analytical Results: LARCHMONT VILLAGE (NY5903433) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-17 to 2023-10-16 | UCMR5 Analytical Results: LARCHMONT VILLAGE (NY5903433) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-17 to 2023-10-16 | UCMR5 Analytical Results: LARCHMONT VILLAGE (NY5903433) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-17 to 2023-10-16 | UCMR5 Analytical Results: LARCHMONT VILLAGE (NY5903433) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-17 to 2023-10-16 | UCMR5 Analytical Results: LARCHMONT VILLAGE (NY5903433) |
| Perfluorobutanesulfonic acid (PFBS) | < 3 ng/L | 2,000 ng/L EPA health advisory (screening, not a legal limit)Screening level, not a legal limit | Not detected above the reporting limit | 2023-01-17 to 2023-10-16 | UCMR5 Analytical Results: LARCHMONT VILLAGE (NY5903433) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-17 to 2023-10-16 | UCMR5 Analytical Results: LARCHMONT VILLAGE (NY5903433) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-17 to 2023-10-16 | UCMR5 Analytical Results: LARCHMONT VILLAGE (NY5903433) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-17 to 2023-10-16 | UCMR5 Analytical Results: LARCHMONT VILLAGE (NY5903433) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-17 to 2023-10-16 | UCMR5 Analytical Results: LARCHMONT VILLAGE (NY5903433) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-17 to 2023-10-16 | UCMR5 Analytical Results: LARCHMONT VILLAGE (NY5903433) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-01-17 to 2023-10-16 | UCMR5 Analytical Results: LARCHMONT VILLAGE (NY5903433) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2023-01-17 to 2023-10-16 | UCMR5 Analytical Results: LARCHMONT VILLAGE (NY5903433) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-01-17 to 2023-10-16 | UCMR5 Analytical Results: LARCHMONT VILLAGE (NY5903433) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-01-17 to 2023-10-16 | UCMR5 Analytical Results: LARCHMONT VILLAGE (NY5903433) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-01-17 to 2023-10-16 | UCMR5 Analytical Results: LARCHMONT VILLAGE (NY5903433) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-17 to 2023-10-16 | UCMR5 Analytical Results: LARCHMONT VILLAGE (NY5903433) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-17 to 2023-10-16 | UCMR5 Analytical Results: LARCHMONT VILLAGE (NY5903433) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-17 to 2023-10-16 | UCMR5 Analytical Results: LARCHMONT VILLAGE (NY5903433) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-17 to 2023-10-16 | UCMR5 Analytical Results: LARCHMONT VILLAGE (NY5903433) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-17 to 2023-10-16 | UCMR5 Analytical Results: LARCHMONT VILLAGE (NY5903433) |
Screening tells you if something is worth a closer look; a lab result is the number you can act on.
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Screening: quick check, not lab-grade
Safe Home (EnviroTestKits)
Lead, read as one of three ranges: 0–4, 5–15 or 15+ ppb
Turnaround: 5 minutes
What it can't tell you: It shows a lead range, not an exact level, and tests nothing else unless you pay extra for the optional lab test.
Lab-certified results
ETR Laboratories
50+ substances, including lead, copper, arsenic, nitrate, hardness and coliform bacteria
Environmental Testing and Research Laboratories (ETR Labs), Leominster, MA · ISO/IEC 17025:2017, ANAB certificate AT-2638 · 2–4 business days after the lab receives it
What it can't tell you: It does not test PFAS, and not every result on the panel falls under the lab's accredited scope.
Get PurityMap updates about this water system.
Follow this water →According to EPA's record, Larchmont Village uses surface water bought from Veolia Water New York, Inc. RD-1 and Westchester Joint Water Works.
No health-based violations on EPA record since 2016. EPA also lists 2 missed or late tests or reports in 10 years. The record comes from EPA's SDWIS compliance database.
The 90th-percentile lead result in Larchmont Village's latest lead and copper round, which ended in December 2026, was 4.9 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for Larchmont Village. Its mailing address on EPA record is Village of Larchmont, 120 Larchmont Avenue, LARCHMONT, NY 10538. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.