Home hazard report for 98275 — Mukilteo, WA
ZIP 98275 is served by Mukilteo Water & Wastewater Distr: no health-based violations since 2016, latest lead result No data, PFAS not detected. Snohomish County is in EPA radon zone 3.
No health-based violations reported since 2016.
No lead sampling results on file for this system.
None of the tested PFAS were found above EPA’s reporting limits in 2023–2025.
Predicted average under 2 pCi/L — but any home can have high radon, so EPA still recommends a test.
FEMA’s overall natural-hazard risk for this census tract, relative to the rest of the U.S.
No active Superfund site within 10 miles of the ZIP center.
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Where ZIP 98275 is
Dashed: ZIP area · blue: utility service area · scroll or pinch to zoomDrinking water: Mukilteo Water & Wastewater Distr
Health-based violations
No health-based violations reported since 2016.
Full record for Mukilteo Water & Wastewater Distr →
Other systems overlapping this ZIP: Alderwood Water District, City of Everett Public Works Dept..
Lead
No lead sampling results on file.
PFAS (“forever chemicals”)
| Compound | Highest result | Samples with detection | EPA limit |
|---|---|---|---|
| PFDA | not detected | 0 of 12 | — |
| HFPO-DA (GenX) | not detected | 0 of 12 | — |
| PFHxA | not detected | 0 of 12 | — |
| PFOA | not detected | 0 of 12 | 4 ppt MCL |
| PFBA | not detected | 0 of 12 | — |
| PFPeA | not detected | 0 of 12 | — |
| PFOS | not detected | 0 of 12 | 4 ppt MCL |
| PFBS | not detected | 0 of 12 | — |
| PFHpA | not detected | 0 of 12 | — |
| PFHxS | not detected | 0 of 12 | — |
| PFNA | not detected | 0 of 12 | — |
EPA Fifth Unregulated Contaminant Monitoring Rule (UCMR 5), samples 2023–2025; ppt = parts per trillion (ng/L). The 4.0 ppt maximum contaminant levels for PFOA and PFOS were set by EPA in 2024; water systems have until the end of the decade to comply.
Radon in Snohomish County
EPA radon zone 3 — low potential. Predicted average under 2 pCi/L — but any home can have high radon, so EPA still recommends a test.
Radon is a colorless, odorless radioactive gas from soil and rock, and the leading cause of lung cancer among non-smokers. EPA recommends fixing a home at 4 pCi/L or above and considering it from 2 pCi/L. A short-term test kit costs about $15–30. How radon zones work →
Natural hazard risk
FEMA rates the overall natural-hazard risk of this neighborhood (census tract) as Relatively High, with relatively high social vulnerability and relatively high community resilience.
FEMA National Risk Index (December 2025): expected annual losses from each hazard combined with social vulnerability and community resilience, rated relative to all U.S. census tracts. Hazards not listed are not applicable here. It describes the area, not a single building; flood insurance maps (FEMA FIRMs) decide flood-insurance requirements.
Live conditions: river gauges and flood levels · tornado warnings · wildfire detections · earthquakes — our sister maps, updated from NOAA, USGS and NASA every few minutes.
Superfund sites nearby
No site on EPA’s Superfund National Priorities List lies within 10 miles of the center of this ZIP code.
EPA Superfund National Priorities List (NPL): the country’s most serious known hazardous-waste sites, each with an EPA cleanup record (linked). Distance is measured from the ZIP center to the site’s reference point; being near a site does not by itself mean exposure — EPA site pages describe what was found and how it is being cleaned up.
What this is — and isn’t. These are records your water utility and state reported to the EPA, and the EPA’s radon map for your county. They describe the system and the area, not the water from your own tap or the air in your home. For that, read your utility’s annual Consumer Confidence Report and test: lead and radon tests are inexpensive.
Questions about 98275
Who supplies drinking water to ZIP 98275?
Mukilteo Water & Wastewater Distr (EPA ID WA5357550), a surface water (rivers, lakes) system serving about 31,437 people.
Is there lead in Mukilteo, WA tap water?
No lead sampling results are on file for this system.
Does Mukilteo, WA water have PFAS?
None of the tested PFAS were found above EPA’s reporting limits in 2023–2025.
Has the water system in 98275 had violations?
No health-based violations reported since 2016.
What natural hazards affect ZIP 98275?
FEMA’s National Risk Index rates the overall natural-hazard risk here as Relatively High; the highest-rated hazards are earthquake (very high), avalanche (relatively moderate), coastal flooding (relatively moderate).
Are there Superfund sites near 98275?
No active Superfund site within 10 miles of the ZIP center.
Is radon a problem in Snohomish County?
Snohomish County is in EPA radon zone 3 (low potential). Predicted average under 2 pCi/L — but any home can have high radon, so EPA still recommends a test.