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

Home hazard report for 97030 — Gresham, OR

ZIP 97030 is served by City of Gresham: no health-based violations since 2016, latest lead result 3.8 ppb, PFAS not detected. Multnomah County is in EPA radon zone 2.

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Where ZIP 97030 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 Gresham

EPA IDOR4100357
People served73,932
Sourcesurface water (rivers, lakes)
Connections17,513

Health-based violations

No health-based violations reported since 2016.

Full record for City of Gresham →

Other systems overlapping this ZIP: Rockwood PUD.

Lead

Jan 20263.8 ppb
Jan 20253.4 ppb
Jul 20244.2 ppb
Jan 20243.2 ppb
Jul 20235 ppb
Jan 20236 ppb
Jul 202214 ppb
Jan 20229 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 4—
PFPeAnot detected0 of 4—
PFHxAnot detected0 of 4—
PFHpAnot detected0 of 4—
PFHxSnot detected0 of 4—
PFNAnot detected0 of 4—
PFOSnot detected0 of 44 ppt MCL
PFOAnot detected0 of 44 ppt MCL
HFPO-DA (GenX)not detected0 of 4—
PFBAnot detected0 of 3—
PFDAnot detected0 of 4—

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 Multnomah 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 Low, with relatively moderate social vulnerability and very high community resilience.

EarthquakeRelatively High
Cold waveRelatively Moderate
Heat waveRelatively Moderate
Ice stormRelatively Low
Riverine floodingRelatively Low
Strong windRelatively Low
Volcanic activityRelatively Low
Winter weatherRelatively Low
HailVery Low
LandslideVery Low
LightningVery Low
TornadoVery Low
WildfireVery 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
Reynolds Metals Company
Troutdale, Oregon · EPA ID ORD009412677
Active (final NPL)3.6 mi
Northwest Pipe & Casing/Hall Process Co
Clackamas, Oregon · EPA ID ORD980988307
Active (final NPL)9.1 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.

Buying a home in Gresham? See the 2026 conforming, FHA and jumbo loan limits for Multnomah 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 97030

Who supplies drinking water to ZIP 97030?

City of Gresham (EPA ID OR4100357), a surface water (rivers, lakes) system serving about 73,932 people.

Is there lead in Gresham, OR tap water?

The utility’s latest 90th-percentile lead result (Jan 2026) was 3.8 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 Gresham, OR water have PFAS?

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

Has the water system in 97030 had violations?

No health-based violations reported since 2016.

What natural hazards affect ZIP 97030?

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

Are there Superfund sites near 97030?

The nearest active Superfund site is 3.6 miles away. Sites within 10 miles: Reynolds Metals Company (3.6 mi, Active (final NPL)); Northwest Pipe & Casing/Hall Process Co (9.1 mi, Active (final NPL)).

Is radon a problem in Multnomah County?

Multnomah 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.