EPA data as of Oct 2026 · page updated 2026-10-30

Home hazard report for 98624 — Ilwaco, WA

ZIP 98624 is served by City of Ilwaco Water Department: no health-based violations since 2016, latest lead result 2 ppb, PFAS not tested. Pacific County is in EPA radon zone 3.

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Where ZIP 98624 is

Dashed: ZIP area · blue: utility service area · scroll or pinch to zoom
ZIP code areaZIP center Water utility service area PFOA/PFOS ≥ 4 ppt Lead > 15 ppb 5+ violations Superfund site (active) proposed cleaned up Circles: other water systems flagged nearby; size = people served. Tap any symbol for details.

Drinking water: City of Ilwaco Water Department

EPA IDWA5335500
People served2,757
Sourcesurface water (rivers, lakes)
Connections709

Health-based violations

No health-based violations reported since 2016.

Full record for City of Ilwaco Water Department →

Lead

Jan 20232 ppb
Jan 201626 ppb
Jan 20138.9 ppb
Jan 20106 ppb
Jan 20077 ppb
Jan 20065 ppb
Jan 20033 ppb
Jan 20025 ppb

90th-percentile lead per sampling round (90% of the homes sampled were at or below this level). Black line: EPA’s 15 ppb action level; under the Lead and Copper Rule Improvements the action level becomes 10 ppb from 2027.

PFAS (“forever chemicals”)

This system was not part of EPA’s 2023–2025 nationwide PFAS testing (UCMR 5).

Radon in Pacific 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 Very High, with relatively high social vulnerability and relatively moderate community resilience.

Riverine floodingVery High
Coastal floodingRelatively High
EarthquakeRelatively High
TsunamiRelatively High
Heat waveRelatively Moderate
LandslideRelatively Moderate
Winter weatherRelatively Moderate
Cold waveRelatively Low
Ice stormRelatively Low
Strong windRelatively Low
WildfireRelatively Low
AvalancheVery Low
HailVery Low
LightningVery Low
TornadoVery Low
Volcanic activityVery Low

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.

Buying a home in Ilwaco? See the 2026 conforming, FHA and jumbo loan limits for Pacific County →

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 98624

Who supplies drinking water to ZIP 98624?

City of Ilwaco Water Department (EPA ID WA5335500), a surface water (rivers, lakes) system serving about 2,757 people.

Is there lead in Ilwaco, WA tap water?

The utility’s latest 90th-percentile lead result (Jan 2023) was 2 ppb; EPA’s action level is 15 ppb, falling to 10 ppb from 2027. Lead mostly comes from service lines and home plumbing, so the only way to know your tap is to test it.

Does Ilwaco, WA water have PFAS?

This system was not part of EPA’s 2023–2025 nationwide PFAS testing (UCMR 5 covers systems serving over 3,300 people and a sample of smaller ones).

Has the water system in 98624 had violations?

No health-based violations reported since 2016.

What natural hazards affect ZIP 98624?

FEMA’s National Risk Index rates the overall natural-hazard risk here as Very High; the highest-rated hazards are riverine flooding (very high), coastal flooding (relatively high), earthquake (relatively high).

Are there Superfund sites near 98624?

No active Superfund site within 10 miles of the ZIP center.

Is radon a problem in Pacific County?

Pacific 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.