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

Home hazard report for 97113 — Cornelius, OR

ZIP 97113 is served by City of Cornelius: no health-based violations since 2016, latest lead result 0 ppb, PFAS not detected. Washington County is in EPA radon zone 2.

Active weather alerts

live from the National Weather Service

Checking the National Weather Service…

Where ZIP 97113 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 Cornelius

EPA IDOR4100218
People served14,490
Sourcesurface water (rivers, lakes)
Connections4,153

Health-based violations

No health-based violations reported since 2016.

Full record for City of Cornelius →

Lead

Jan 20210 ppb
Jan 20180 ppb
Jan 20150 ppb
Jan 20120 ppb
Jan 20110 ppb
Jan 20080 ppb
Jan 20052 ppb
Jan 19993 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”)

CompoundHighest resultSamples with detectionEPA limit
PFBSnot detected0 of 5—
PFDAnot detected0 of 5—
PFHxAnot detected0 of 5—
PFOSnot detected0 of 54 ppt MCL
PFOAnot detected0 of 54 ppt MCL
PFHpAnot detected0 of 5—
PFHxSnot detected0 of 5—
PFPeAnot detected0 of 5—
PFNAnot detected0 of 5—
PFBAnot detected0 of 5—
HFPO-DA (GenX)not detected0 of 5—

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 Washington County

EPA radon zone 2 — moderate potential. Predicted average indoor radon between 2 and 4 pCi/L. Test your home; many homes here exceed 4 pCi/L.

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 moderate social vulnerability and relatively high community resilience.

EarthquakeRelatively High
Riverine floodingRelatively High
Cold waveRelatively Moderate
Heat waveRelatively Moderate
Ice stormRelatively Moderate
Strong windRelatively Moderate
Winter weatherRelatively Moderate
LandslideRelatively Low
LightningRelatively Low
TornadoRelatively Low
Volcanic activityRelatively Low
WildfireRelatively Low
HailVery 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.

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 97113

Who supplies drinking water to ZIP 97113?

City of Cornelius (EPA ID OR4100218), a surface water (rivers, lakes) system serving about 14,490 people.

Is there lead in Cornelius, OR 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 Cornelius, OR water have PFAS?

None of the tested PFAS were found above EPA’s reporting limits in 2023–2025.

Has the water system in 97113 had violations?

No health-based violations reported since 2016.

What natural hazards affect ZIP 97113?

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

Are there Superfund sites near 97113?

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

Is radon a problem in Washington County?

Washington County is in EPA radon zone 2 (moderate potential). Predicted average indoor radon between 2 and 4 pCi/L. Test your home; many homes here exceed 4 pCi/L.