Is Roche Harbor tap water safe to drink?
- San Juan Island CCD, WA
The short answer for Roche Harbor
Roche Harbor tap water tested within EPA guidelines across all compounds checked (tested October 2023). See the complete test results, measurements, and what was tested.
The health risk for Roche Harbor
- All tested compounds were below lab detection limits.
Certified filtration options for common tap-water contaminants.
No compounds above or close to EPA limits in available data.
View all tested compounds
Treatment Plant · Tested: October 2023
| Compound | Measurement | EPA Limit | Comparison |
|---|---|---|---|
| lithium | <9.000 µg/L | 10 µg/L | Below limit |
| PFHxS | <0.003 µg/L | 0.004 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 |
| PFHxA | <0.003 µg/L | 3 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 |
| PFBS | <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 |
| PFHpA | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFHpS | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFOA | <0.004 µg/L | 0.004 µg/L | Below limit |
| PFOS | <0.004 µg/L | 0.004 µg/L | Below limit |
| PFPeA | <0.003 µg/L | 0.003 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 98250
Service area boundaries are approximate and based on state filings or modeled estimates. Contact your utility to confirm exact service at a specific address.
- FRIDAY HARBOR TOWN OFLooks OK
Frequently Asked Questions about ZIP 98250 Tap Water
What's in ZIP 98250 tap water?
ZIP 98250 did not show contaminants above EPA health guidelines in the latest available dataset. The full table on this page lists every compound that was tested.
Who provides tap water in ZIP 98250?
Public records identify FRIDAY HARBOR TOWN OF as a primary water system associated with ZIP 98250. Service boundaries can vary by address, so confirm exact service with the utility.
When was ZIP 98250 tap water last tested?
The most recent test date used in this report is October 2023. EnviroClarity last refreshed this page on 2026-05-04.
Where can I find the official water quality report for ZIP 98250?
Every U.S. public water system is required to publish an annual Consumer Confidence Report (CCR). Contact FRIDAY HARBOR TOWN OF or visit their website for the latest official report covering ZIP 98250. The EPA also maintains a national CCR locator.
Do I still need a water filter in ZIP 98250?
Even when EPA-tracked compounds are within limits, some households use a certified filter for taste, odor, or to add a margin against trace contaminants below the reporting limit. Match any filter's certifications (NSF/ANSI 42, 53, 58, or P473) to the specific compounds you care about.
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Data reflects publicly reported utility records from EPA datasets and local utility disclosures. This information is educational and not medical advice.