Is Coupeville tap water safe to drink?
- Central Whidbey Island CCD, WA
- Coupeville
The short answer for Coupeville
Coupeville tap water has 4 contaminants above EPA guidelines, including PFPeA at 4.0× the limit (tested August 2025). See the full compound-by-compound breakdown and filter recommendations.
The health risk for Coupeville
- PFBS, PFHpA, PFOA, PFPeA above limit.
PFPeA (a PFAS 'forever chemical') was detected above EPA limits. These filters are independently certified to reduce common drinking-water contaminants.
Here's what actually removes PFAS from your water
The right filter eliminates PFAS at the tap. But not all filters do - and the type you choose matters for your home.
Common pitchers like Brita do not remove PFAS. You need a filter independently certified to NSF P473 (for pitcher filters) or NSF/ANSI 58 (for reverse osmosis systems). All three options below carry the relevant certification.
| Compound | Measurement | EPA Limit | Comparison |
|---|---|---|---|
| PFPeA Tested: August 2025 · Fort Casey |
0.012 µg/L | 0.003 µg/L | 300% above limit |
| PFOA Tested: August 2025 · Fort Casey |
0.010 µg/L | 0.004 µg/L | 145% above limit |
| PFBS Tested: August 2025 · Fort Casey |
0.007 µg/L | 0.003 µg/L | 123% above limit |
| PFHpA Tested: August 2025 · Fort Casey |
0.003 µg/L | 0.003 µg/L | 10% above limit |
| PFHxS Tested: August 2025 · Fort Casey |
0.004 µg/L | 0.004 µg/L | 95% of limit |
View all tested compounds
Fort Casey · Tested: August 2025
| Compound | Measurement | EPA Limit | Comparison |
|---|---|---|---|
| PFPeA | 0.012 µg/L | 0.003 µg/L | 300% above limit |
| PFOA | 0.010 µg/L | 0.004 µg/L | 145% above limit |
| PFBS | 0.007 µg/L | 0.003 µg/L | 123% above limit |
| PFHpA | 0.003 µg/L | 0.003 µg/L | 10% above limit |
| PFHxS | 0.004 µg/L | 0.004 µg/L | 95% of limit |
| PFHxA | 0.017 µg/L | 3 µg/L | 0.6% of limit |
| lithium | <9.000 µg/L | 10 µg/L | Below limit |
| HFPO-DA | <0.005 µg/L | 0.01 µg/L | Below limit |
| PFNA | <0.004 µg/L | 0.01 µg/L | Below limit |
| PFBA | <0.005 µg/L | 6 µg/L | Below limit |
| 11Cl-PF3OUdS | <0.005 µg/L | 0.005 µg/L | Below limit |
| 4:2 FTS | <0.003 µg/L | 0.003 µg/L | Below limit |
| 6:2 FTS | <0.005 µg/L | 0.005 µg/L | Below limit |
| 8:2 FTS | <0.005 µg/L | 0.005 µg/L | Below limit |
| 9Cl-PF3ONS | <0.002 µg/L | 0.002 µg/L | Below limit |
| ADONA | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFDA | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFDoA | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFHpS | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFOS | <0.004 µg/L | 0.004 µg/L | Below limit |
| PFTrDA | <0.007 µg/L | 0.007 µg/L | Below limit |
| PFUnA | <0.002 µg/L | 0.002 µg/L | Below limit |
Water utilities serving ZIP 98239
Service area boundaries are approximate and based on state filings or modeled estimates. Contact your utility to confirm exact service at a specific address.
- COUPEVILLE TOWN OFAction advised
Frequently Asked Questions about ZIP 98239 Tap Water
What contaminants are above EPA limits in ZIP 98239?
ZIP 98239 has 4 contaminants above EPA health guidelines in the latest available data, including PFPeA at 4.0x the EPA guideline. The full table on this page lists every tested compound and its measured level.
Will boiling ZIP 98239 tap water remove PFPeA?
No. Boiling does not remove PFAS, and the compounds can actually become more concentrated as water evaporates. To reduce PFAS at home, use a filter independently certified to NSF/ANSI P473 (activated-carbon pitcher or under-sink) or NSF/ANSI 58 (reverse osmosis).
Do basic pitcher filters remove PFPeA?
Most basic pitcher filters are only certified to NSF/ANSI 42 or 53, which do not cover PFAS. Look for a filter independently certified to NSF/ANSI P473 (activated-carbon pitcher or under-sink) or NSF/ANSI 58 (reverse osmosis) on the spec sheet.
Who provides tap water in ZIP 98239?
Public records identify COUPEVILLE TOWN OF as a primary water system associated with ZIP 98239. Service boundaries can vary by address, so confirm exact service with the utility.
When was ZIP 98239 tap water last tested?
The most recent test date used in this report is August 2025. EnviroClarity last refreshed this page on 2026-05-04.
Where can I find the official water quality report for ZIP 98239?
Every U.S. public water system is required to publish an annual Consumer Confidence Report (CCR). Contact COUPEVILLE TOWN OF or visit their website for the latest official report covering ZIP 98239. The EPA also maintains a national CCR locator.
Check another ZIP code
Nearby ZIP reports
- 98277 - Oak Harbor tap water report
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- 98278 - Whidbey Island Station tap water report
- 98368 - Port Townsend tap water report
- 98358 - Marrowstone tap water report
- 98339 - Port Hadlock, Port Hadlock-Irondale tap water report
- 98292 - Kayak Point tap water report
- 98257 - La Conner tap water report
Data reflects publicly reported utility records from EPA datasets and local utility disclosures. This information is educational and not medical advice.