EPA data as of Oct 2026 · page updated 2026-10-29

Home hazard report for 98532 — Chehalis, WA

ZIP 98532 is served by Boistfort Valley: no health-based violations since 2016, latest lead result 0 ppb, PFAS not tested. Lewis County is in EPA radon zone 3.

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Where ZIP 98532 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: Boistfort Valley

EPA IDWA5307610
People served2,389
Sourcesurface water (rivers, lakes)
Connections829

Health-based violations

No health-based violations reported since 2016.

Full record for Boistfort Valley →

Other systems overlapping this ZIP: Newaukum Hill Water Assn, Chehalis Water Department.

Lead

Jan 20210 ppb
Jan 20181.1 ppb
Jan 20152 ppb
Jan 20121 ppb
Jan 20092 ppb
Jan 20067 ppb
Jan 20032 ppb
Jan 20003 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 Lewis 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 low social vulnerability and relatively low community resilience.

Riverine floodingRelatively High
AvalancheRelatively Moderate
EarthquakeRelatively Moderate
Heat waveRelatively Moderate
LandslideRelatively Moderate
Strong windRelatively Low
Volcanic activityRelatively Low
WildfireRelatively Low
Winter weatherRelatively Low
Cold waveVery Low
DroughtVery Low
HailVery Low
Ice stormVery Low
LightningVery Low
TornadoVery 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

SiteStatusDistance
American Crossarm & Conduit Co.
Chehalis, Washington · EPA ID WAD057311094
Cleaned up & deleted4.5 mi
Hamilton/Labree Roads Ground Water Contamination
Chehalis, Washington · EPA ID WASFN1002174
Active (final NPL)5.7 mi
Centralia Municipal Landfill
Centralia, Washington · EPA ID WAD980836662
Active (final NPL)6.5 mi

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 98532

Who supplies drinking water to ZIP 98532?

Boistfort Valley (EPA ID WA5307610), a surface water (rivers, lakes) system serving about 2,389 people.

Is there lead in Chehalis, WA tap water?

The utility’s latest 90th-percentile lead result (Jan 2021) was 0 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 Chehalis, 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 98532 had violations?

No health-based violations reported since 2016.

What natural hazards affect ZIP 98532?

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

Are there Superfund sites near 98532?

The nearest active Superfund site is 5.7 miles away. Sites within 10 miles: American Crossarm & Conduit Co. (4.5 mi, Cleaned up & deleted); Hamilton/Labree Roads Ground Water Contamination (5.7 mi, Active (final NPL)); Centralia Municipal Landfill (6.5 mi, Active (final NPL)).

Is radon a problem in Lewis County?

Lewis 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.