No health-based violations on EPA record since 2016.
Serves about 7,850 people (2,300 connections) with groundwater from its own wells.
From EPA's record for NY5203324. PurityMap is independent of Fallsburg Who-LS-SF.
Are you this utility? Correct this listing →
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 April 2025 to November 2025.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Lithium | 60.9 µg/L | 10 µg/L EPA health reference level (screening, not a legal limit)Screening level, not a legal limit | Above the referenced health-based guidance value | 2025-04-14 to 2025-11-05 | UCMR5 Analytical Results: FALLSBURG WHO-LS-SF (NY5203324) |
| Perfluorononanoic acid (PFNA) | 12.3 ng/L | 10 ng/L federal MCL (2024) | Above a historical reference; current applicability unverified | 2025-04-14 to 2025-11-05 | UCMR5 Analytical Results: FALLSBURG WHO-LS-SF (NY5203324) |
| 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 | 2025-04-14 to 2025-11-05 | UCMR5 Analytical Results: FALLSBURG WHO-LS-SF (NY5203324) |
| 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 | 2025-04-14 to 2025-11-05 | UCMR5 Analytical Results: FALLSBURG WHO-LS-SF (NY5203324) |
| 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 | 2025-04-14 to 2025-11-05 | UCMR5 Analytical Results: FALLSBURG WHO-LS-SF (NY5203324) |
| 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 | 2025-04-14 to 2025-11-05 | UCMR5 Analytical Results: FALLSBURG WHO-LS-SF (NY5203324) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-04-14 to 2025-11-05 | UCMR5 Analytical Results: FALLSBURG WHO-LS-SF (NY5203324) |
| 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 | 2025-04-14 to 2025-11-05 | UCMR5 Analytical Results: FALLSBURG WHO-LS-SF (NY5203324) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-04-14 to 2025-11-05 | UCMR5 Analytical Results: FALLSBURG WHO-LS-SF (NY5203324) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-04-14 to 2025-11-05 | UCMR5 Analytical Results: FALLSBURG WHO-LS-SF (NY5203324) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-04-14 to 2025-11-05 | UCMR5 Analytical Results: FALLSBURG WHO-LS-SF (NY5203324) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-04-14 to 2025-11-05 | UCMR5 Analytical Results: FALLSBURG WHO-LS-SF (NY5203324) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-04-14 to 2025-11-05 | UCMR5 Analytical Results: FALLSBURG WHO-LS-SF (NY5203324) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-04-14 to 2025-11-05 | UCMR5 Analytical Results: FALLSBURG WHO-LS-SF (NY5203324) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-04-14 to 2025-11-05 | UCMR5 Analytical Results: FALLSBURG WHO-LS-SF (NY5203324) |
| 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 | 2025-04-14 to 2025-11-05 | UCMR5 Analytical Results: FALLSBURG WHO-LS-SF (NY5203324) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-04-14 to 2025-11-05 | UCMR5 Analytical Results: FALLSBURG WHO-LS-SF (NY5203324) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-04-14 to 2025-11-05 | UCMR5 Analytical Results: FALLSBURG WHO-LS-SF (NY5203324) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-04-14 to 2025-11-05 | UCMR5 Analytical Results: FALLSBURG WHO-LS-SF (NY5203324) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-04-14 to 2025-11-05 | UCMR5 Analytical Results: FALLSBURG WHO-LS-SF (NY5203324) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-04-14 to 2025-11-05 | UCMR5 Analytical Results: FALLSBURG WHO-LS-SF (NY5203324) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-04-14 to 2025-11-05 | UCMR5 Analytical Results: FALLSBURG WHO-LS-SF (NY5203324) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2025-04-14 to 2025-11-05 | UCMR5 Analytical Results: FALLSBURG WHO-LS-SF (NY5203324) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-04-14 to 2025-11-05 | UCMR5 Analytical Results: FALLSBURG WHO-LS-SF (NY5203324) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-04-14 to 2025-11-05 | UCMR5 Analytical Results: FALLSBURG WHO-LS-SF (NY5203324) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-04-14 to 2025-11-05 | UCMR5 Analytical Results: FALLSBURG WHO-LS-SF (NY5203324) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-04-14 to 2025-11-05 | UCMR5 Analytical Results: FALLSBURG WHO-LS-SF (NY5203324) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-04-14 to 2025-11-05 | UCMR5 Analytical Results: FALLSBURG WHO-LS-SF (NY5203324) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-04-14 to 2025-11-05 | UCMR5 Analytical Results: FALLSBURG WHO-LS-SF (NY5203324) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-04-14 to 2025-11-05 | UCMR5 Analytical Results: FALLSBURG WHO-LS-SF (NY5203324) |
Screening tells you if something is worth a closer look; a lab result is the number you can act on.
As an Amazon Associate, PurityMap earns from qualifying purchases. Affiliate disclosure
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 →Fallsburg Who-LS-SF's phone number on EPA record is 845-434-8810. Its mailing address is PO Box 2019, 19 Railroad Plz, SOUTH FALLSBURG, NY 12779.
According to EPA's record, Fallsburg Who-LS-SF uses groundwater from its own wells.
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.
Lead was not detected at the 90th percentile of tap samples in Fallsburg Who-LS-SF's latest lead and copper round, which ended in June 2026. The federal action level is 15 µg/L.
PurityMap has no verified website for Fallsburg Who-LS-SF. Its phone number on EPA record is 845-434-8810. Its mailing address on EPA record is PO Box 2019, 19 Railroad Plz, SOUTH FALLSBURG, NY 12779. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.