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

Home hazard report for 76401 — Stephenville, TX

ZIP 76401 is served by City of Stephenville: no health-based violations since 2016, latest lead result 1.3 ppb, PFAS not detected. Erath County is in EPA radon zone 3.

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Where ZIP 76401 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 Stephenville

EPA IDTX0720002
People served23,110
Sourcesurface water (rivers, lakes)
Connections9,395

Health-based violations

No health-based violations reported since 2016.

Full record for City of Stephenville →

Lead

Jan 20231.3 ppb
Jan 20203.1 ppb
Jan 20174.1 ppb
Jan 20143.4 ppb
Jan 20114.3 ppb
Jan 20084.2 ppb
Jan 20054 ppb
Jan 19995.3 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
HFPO-DA (GenX)not detected0 of 10—
PFHxAnot detected0 of 10—
PFDAnot detected0 of 10—
PFBSnot detected0 of 10—
PFOSnot detected0 of 104 ppt MCL
PFHpAnot detected0 of 10—
PFHxSnot detected0 of 10—
PFNAnot detected0 of 10—
PFOAnot detected0 of 104 ppt MCL
PFBAnot detected0 of 10—
PFPeAnot detected0 of 10—

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 Erath 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 moderate social vulnerability and relatively moderate community resilience.

Cold waveVery High
LightningRelatively High
Riverine floodingRelatively High
TornadoRelatively High
WildfireRelatively High
HailRelatively Moderate
Heat waveRelatively Moderate
Strong windRelatively Moderate
Winter weatherRelatively Moderate
DroughtRelatively Low
HurricaneRelatively Low
Ice stormRelatively Low
EarthquakeVery Low
LandslideVery 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.

Buying a home in Stephenville? See the 2026 conforming, FHA and jumbo loan limits for Erath 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 76401

Who supplies drinking water to ZIP 76401?

City of Stephenville (EPA ID TX0720002), a surface water (rivers, lakes) system serving about 23,110 people.

Is there lead in Stephenville, TX tap water?

The utility’s latest 90th-percentile lead result (Jan 2023) was 1.3 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 Stephenville, TX water have PFAS?

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

Has the water system in 76401 had violations?

No health-based violations reported since 2016.

What natural hazards affect ZIP 76401?

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

Are there Superfund sites near 76401?

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

Is radon a problem in Erath County?

Erath 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.