No health-based violations on EPA record since 2016.
Serves about 8,489 people (1,580 connections) with groundwater from its own wells.
From EPA's record for NY0701011. PurityMap is independent of Big Flats Water District 5.
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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 February 2024 to August 2024.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Perfluoropentanoic acid (PFPeA) | 4.8 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2024-02-12 to 2024-08-14 | UCMR5 Analytical Results: BIG FLATS WATER DISTRICT 5 (NY0701011) |
| 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 | 2024-02-12 to 2024-08-14 | UCMR5 Analytical Results: BIG FLATS WATER DISTRICT 5 (NY0701011) |
| 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 | 2024-02-12 to 2024-08-14 | UCMR5 Analytical Results: BIG FLATS WATER DISTRICT 5 (NY0701011) |
| 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 | 2024-02-12 to 2024-08-14 | UCMR5 Analytical Results: BIG FLATS WATER DISTRICT 5 (NY0701011) |
| 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 | 2024-02-12 to 2024-08-14 | UCMR5 Analytical Results: BIG FLATS WATER DISTRICT 5 (NY0701011) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-12 to 2024-08-14 | UCMR5 Analytical Results: BIG FLATS WATER DISTRICT 5 (NY0701011) |
| 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 | 2024-02-12 to 2024-08-14 | UCMR5 Analytical Results: BIG FLATS WATER DISTRICT 5 (NY0701011) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-02-12 to 2024-08-14 | UCMR5 Analytical Results: BIG FLATS WATER DISTRICT 5 (NY0701011) |
| 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 | 2024-02-12 to 2024-08-14 | UCMR5 Analytical Results: BIG FLATS WATER DISTRICT 5 (NY0701011) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-12 to 2024-08-14 | UCMR5 Analytical Results: BIG FLATS WATER DISTRICT 5 (NY0701011) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-12 to 2024-08-14 | UCMR5 Analytical Results: BIG FLATS WATER DISTRICT 5 (NY0701011) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-12 to 2024-08-14 | UCMR5 Analytical Results: BIG FLATS WATER DISTRICT 5 (NY0701011) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-12 to 2024-08-14 | UCMR5 Analytical Results: BIG FLATS WATER DISTRICT 5 (NY0701011) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-12 to 2024-08-14 | UCMR5 Analytical Results: BIG FLATS WATER DISTRICT 5 (NY0701011) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-12 to 2024-08-14 | UCMR5 Analytical Results: BIG FLATS WATER DISTRICT 5 (NY0701011) |
| 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 | 2024-02-12 to 2024-08-14 | UCMR5 Analytical Results: BIG FLATS WATER DISTRICT 5 (NY0701011) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-12 to 2024-08-14 | UCMR5 Analytical Results: BIG FLATS WATER DISTRICT 5 (NY0701011) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-12 to 2024-08-14 | UCMR5 Analytical Results: BIG FLATS WATER DISTRICT 5 (NY0701011) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-12 to 2024-08-14 | UCMR5 Analytical Results: BIG FLATS WATER DISTRICT 5 (NY0701011) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-12 to 2024-08-14 | UCMR5 Analytical Results: BIG FLATS WATER DISTRICT 5 (NY0701011) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-12 to 2024-08-14 | UCMR5 Analytical Results: BIG FLATS WATER DISTRICT 5 (NY0701011) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-02-12 to 2024-08-14 | UCMR5 Analytical Results: BIG FLATS WATER DISTRICT 5 (NY0701011) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2024-02-12 to 2024-08-14 | UCMR5 Analytical Results: BIG FLATS WATER DISTRICT 5 (NY0701011) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-02-12 to 2024-08-14 | UCMR5 Analytical Results: BIG FLATS WATER DISTRICT 5 (NY0701011) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-02-12 to 2024-08-14 | UCMR5 Analytical Results: BIG FLATS WATER DISTRICT 5 (NY0701011) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-02-12 to 2024-08-14 | UCMR5 Analytical Results: BIG FLATS WATER DISTRICT 5 (NY0701011) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-12 to 2024-08-14 | UCMR5 Analytical Results: BIG FLATS WATER DISTRICT 5 (NY0701011) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-12 to 2024-08-14 | UCMR5 Analytical Results: BIG FLATS WATER DISTRICT 5 (NY0701011) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-12 to 2024-08-14 | UCMR5 Analytical Results: BIG FLATS WATER DISTRICT 5 (NY0701011) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-12 to 2024-08-14 | UCMR5 Analytical Results: BIG FLATS WATER DISTRICT 5 (NY0701011) |
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 →Big Flats Water District 5's phone number on EPA record is 607-562-8443. Its mailing address is 476 Maple Street, BIG FLATS, NY 14814.
According to EPA's record, Big Flats Water District 5 uses groundwater from its own wells.
No health-based violations on EPA record since 2016. The record comes from EPA's SDWIS compliance database.
The 90th-percentile lead result in Big Flats Water District 5's latest lead and copper round, which ended in December 2025, was 2 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for Big Flats Water District 5. Its phone number on EPA record is 607-562-8443. Its mailing address on EPA record is 476 Maple Street, BIG FLATS, NY 14814. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.