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

Home hazard report for 94535 — Travis Afb, CA

ZIP 94535 is served by California Water Service Co.-Travis AFB: no health-based violations since 2016, latest lead result 1.7 ppb, PFAS not detected. Solano County is in EPA radon zone 3.

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Where ZIP 94535 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: California Water Service Co.-Travis AFB

EPA IDCA4810701
People served18,111
Sourcesurface water (rivers, lakes)
Connections1

Health-based violations

No health-based violations reported since 2016.

Full record for California Water Service Co.-Travis AFB →

Lead

Jan 20221.7 ppb
Jan 20190 ppb
Jan 20160 ppb
Jan 20130 ppb
Jan 20105 ppb
Jan 20061.4 ppb
Jan 20041.4 ppb
Jan 20031.5 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
PFHpAnot detected0 of 4—
PFBSnot detected0 of 4—
PFPeAnot detected0 of 4—
PFNAnot detected0 of 4—
PFHxSnot detected0 of 4—
PFOSnot detected0 of 44 ppt MCL
PFOAnot detected0 of 44 ppt MCL
PFDAnot detected0 of 4—
PFHxAnot detected0 of 4—
HFPO-DA (GenX)not detected0 of 4—
PFBAnot 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 Solano 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 Low, with relatively high social vulnerability and relatively high community resilience.

EarthquakeRelatively Moderate
WildfireRelatively Low
HailVery Low
Heat waveVery Low
LightningVery Low
Riverine floodingVery Low
Strong windVery Low
TornadoVery Low
Volcanic activityVery Low
Winter weatherVery 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
Travis Air Force Base
Solano County, California · EPA ID CA5570024575
Active (final NPL)<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 Travis Afb? See the 2026 conforming, FHA and jumbo loan limits for Solano 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 94535

Who supplies drinking water to ZIP 94535?

California Water Service Co.-Travis AFB (EPA ID CA4810701), a surface water (rivers, lakes) system serving about 18,111 people.

Is there lead in Travis Afb, CA tap water?

The utility’s latest 90th-percentile lead result (Jan 2022) was 1.7 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 Travis Afb, CA water have PFAS?

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

Has the water system in 94535 had violations?

No health-based violations reported since 2016.

What natural hazards affect ZIP 94535?

FEMA’s National Risk Index rates the overall natural-hazard risk here as Very Low; the highest-rated hazards are earthquake (relatively moderate), wildfire (relatively low), hail (very low).

Are there Superfund sites near 94535?

Active or proposed Superfund (National Priorities List) sites near the center of this ZIP code. Sites within 10 miles: Travis Air Force Base (0.5 mi, Active (final NPL)).

Is radon a problem in Solano County?

Solano 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.