No health-based violations on EPA record since 2016.
Serves about 16,595 people (1,952 connections) with surface water bought from City of Oak Harbor.
From EPA's record for WA5303420. PurityMap is independent of Naval Air Station/Whidbey Island.
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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 September 2024 to June 2025.
| 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 | 2024-09-17 to 2025-06-17 | UCMR5 Analytical Results: NAVAL AIR STATION/WHIDBEY ISLAND (WA5303420) |
| 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 | 2024-09-17 to 2025-06-17 | UCMR5 Analytical Results: NAVAL AIR STATION/WHIDBEY ISLAND (WA5303420) |
| 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 | 2024-09-17 to 2025-06-17 | UCMR5 Analytical Results: NAVAL AIR STATION/WHIDBEY ISLAND (WA5303420) |
| 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 | 2024-09-17 to 2025-06-17 | UCMR5 Analytical Results: NAVAL AIR STATION/WHIDBEY ISLAND (WA5303420) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-09-17 to 2025-06-17 | UCMR5 Analytical Results: NAVAL AIR STATION/WHIDBEY ISLAND (WA5303420) |
| 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 | 2024-09-17 to 2025-06-17 | UCMR5 Analytical Results: NAVAL AIR STATION/WHIDBEY ISLAND (WA5303420) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-09-17 to 2025-06-17 | UCMR5 Analytical Results: NAVAL AIR STATION/WHIDBEY ISLAND (WA5303420) |
| 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 | 2024-09-17 to 2025-06-17 | UCMR5 Analytical Results: NAVAL AIR STATION/WHIDBEY ISLAND (WA5303420) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-09-17 to 2025-06-17 | UCMR5 Analytical Results: NAVAL AIR STATION/WHIDBEY ISLAND (WA5303420) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-09-17 to 2025-06-17 | UCMR5 Analytical Results: NAVAL AIR STATION/WHIDBEY ISLAND (WA5303420) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-09-17 to 2025-06-17 | UCMR5 Analytical Results: NAVAL AIR STATION/WHIDBEY ISLAND (WA5303420) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-09-17 to 2025-06-17 | UCMR5 Analytical Results: NAVAL AIR STATION/WHIDBEY ISLAND (WA5303420) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-09-17 to 2025-06-17 | UCMR5 Analytical Results: NAVAL AIR STATION/WHIDBEY ISLAND (WA5303420) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-09-17 to 2025-06-17 | UCMR5 Analytical Results: NAVAL AIR STATION/WHIDBEY ISLAND (WA5303420) |
| 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 | 2024-09-17 to 2025-06-17 | UCMR5 Analytical Results: NAVAL AIR STATION/WHIDBEY ISLAND (WA5303420) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-09-17 to 2025-06-17 | UCMR5 Analytical Results: NAVAL AIR STATION/WHIDBEY ISLAND (WA5303420) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-09-17 to 2025-06-17 | UCMR5 Analytical Results: NAVAL AIR STATION/WHIDBEY ISLAND (WA5303420) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-09-17 to 2025-06-17 | UCMR5 Analytical Results: NAVAL AIR STATION/WHIDBEY ISLAND (WA5303420) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-09-17 to 2025-06-17 | UCMR5 Analytical Results: NAVAL AIR STATION/WHIDBEY ISLAND (WA5303420) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-09-17 to 2025-06-17 | UCMR5 Analytical Results: NAVAL AIR STATION/WHIDBEY ISLAND (WA5303420) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-09-17 to 2025-06-17 | UCMR5 Analytical Results: NAVAL AIR STATION/WHIDBEY ISLAND (WA5303420) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2024-09-17 to 2025-06-17 | UCMR5 Analytical Results: NAVAL AIR STATION/WHIDBEY ISLAND (WA5303420) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-09-17 to 2025-06-17 | UCMR5 Analytical Results: NAVAL AIR STATION/WHIDBEY ISLAND (WA5303420) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-09-17 to 2025-06-17 | UCMR5 Analytical Results: NAVAL AIR STATION/WHIDBEY ISLAND (WA5303420) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-09-17 to 2025-06-17 | UCMR5 Analytical Results: NAVAL AIR STATION/WHIDBEY ISLAND (WA5303420) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-09-17 to 2025-06-17 | UCMR5 Analytical Results: NAVAL AIR STATION/WHIDBEY ISLAND (WA5303420) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-09-17 to 2025-06-17 | UCMR5 Analytical Results: NAVAL AIR STATION/WHIDBEY ISLAND (WA5303420) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-09-17 to 2025-06-17 | UCMR5 Analytical Results: NAVAL AIR STATION/WHIDBEY ISLAND (WA5303420) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-09-17 to 2025-06-17 | UCMR5 Analytical Results: NAVAL AIR STATION/WHIDBEY ISLAND (WA5303420) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-09-17 to 2025-06-17 | UCMR5 Analytical Results: NAVAL AIR STATION/WHIDBEY ISLAND (WA5303420) |
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, Naval Air Station/Whidbey Island uses surface water bought from City of Oak Harbor.
No health-based violations on EPA record since 2016. The record comes from EPA's SDWIS compliance database.
The 90th-percentile lead result in Naval Air Station/Whidbey Island's latest lead and copper round, which ended in December 2025, was 3.4 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for Naval Air Station/Whidbey Island. Its mailing address on EPA record is 1115 W Lexington St Bldg 103, NAS Whidbey Island, WA 98278. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.