Home hazard report for 95139 — San Jose, CA
ZIP 95139 is served by Santa Clara Valley Water District: no health-based violations since 2016, latest lead result No data, PFAS not tested. Santa Clara County is in EPA radon zone 2.
No health-based violations reported since 2016.
No lead sampling results on file for this system.
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).
Predicted average indoor radon between 2 and 4 pCi/L. Test your home; many homes here exceed 4 pCi/L.
FEMA’s overall natural-hazard risk for this census tract, relative to the rest of the U.S.
Active or proposed Superfund (National Priorities List) sites near the center of this ZIP code.
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Where ZIP 95139 is
Dashed: ZIP area · blue: utility service area · scroll or pinch to zoomDrinking water: Santa Clara Valley Water District
Health-based violations
No health-based violations reported since 2016.
Full record for Santa Clara Valley Water District →
Other systems overlapping this ZIP: Great Oaks Wc INC.
Lead
No lead sampling results on file.
PFAS (“forever chemicals”)
This system was not part of EPA’s 2023–2025 nationwide PFAS testing (UCMR 5).
Radon in Santa Clara 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 Moderate, with very low 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
| Site | Status | Distance |
|---|---|---|
| Fairchild Semiconductor Corp. (South San Jose Plant) South San Jose, California · EPA ID CAD097012298 | Active (final NPL) | <1 mi |
| Lorentz Barrel & Drum Co. San Jose, California · EPA ID CAD029295706 | Active (final NPL) | 8.5 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 95139
Who supplies drinking water to ZIP 95139?
Santa Clara Valley Water District (EPA ID CA4310027), a surface water (rivers, lakes) system serving about 0 people.
Is there lead in San Jose, CA tap water?
No lead sampling results are on file for this system.
Does San Jose, CA 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 95139 had violations?
No health-based violations reported since 2016.
What natural hazards affect ZIP 95139?
FEMA’s National Risk Index rates the overall natural-hazard risk here as Relatively Moderate; the highest-rated hazards are earthquake (relatively high), riverine flooding (relatively moderate), drought (relatively low).
Are there Superfund sites near 95139?
Active or proposed Superfund (National Priorities List) sites near the center of this ZIP code. Sites within 10 miles: Fairchild Semiconductor Corp. (South San Jose Plant) (0.8 mi, Active (final NPL)); Lorentz Barrel & Drum Co. (8.5 mi, Active (final NPL)).
Is radon a problem in Santa Clara County?
Santa Clara 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.