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

Home hazard report for 75159 — Seagoville, TX

ZIP 75159 is served by Combine WSC: 1 violation since 2016, latest lead result 1.9 ppb, PFAS 4 detected. Dallas County is in EPA radon zone 3.

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Where ZIP 75159 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: Combine WSC

EPA IDTX0570039
People served3,588
Sourcesurface water (rivers, lakes)
Connections1,196

Health-based violations

Contaminant or ruleHealth-based violations since 2016
Lead and Copper Rule Revisions1

A health-based violation means a contaminant exceeded its legal limit (MCL) or a required treatment technique was not met, as reported by the state to EPA’s SDWIS. All are listed as resolved or archived; the latest began Oct 2024.

Full record for Combine WSC →

Other systems overlapping this ZIP: City of Seagoville.

Lead

Jan 20211.9 ppb
Jan 20181.1 ppb
Jan 20002.2 ppb
Jan 19976 ppb
Jan 199610 ppb
Jan 19955.5 ppb
Jan 199410 ppb
Jul 19937.5 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
PFBA11.2 ppt2 of 4—
PFPeA5.6 ppt3 of 4—
PFBS5.4 ppt3 of 4—
PFHxA5 ppt3 of 4—
PFNAnot detected0 of 4—
PFDAnot detected0 of 4—
PFHpAnot detected0 of 4—
PFOSnot detected0 of 44 ppt MCL
PFHxSnot detected0 of 4—
HFPO-DA (GenX)not detected0 of 4—
PFOAnot detected0 of 44 ppt MCL

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 Dallas 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 Moderate, with very high social vulnerability and very low community resilience.

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

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 75159

Who supplies drinking water to ZIP 75159?

Combine WSC (EPA ID TX0570039), a surface water (rivers, lakes) system serving about 3,588 people.

Is there lead in Seagoville, TX tap water?

The utility’s latest 90th-percentile lead result (Jan 2021) was 1.9 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 Seagoville, TX water have PFAS?

PFAS were detected, with PFOA and PFOS below 4.0 ppt (highest not detected).

Has the water system in 75159 had violations?

Health-based violations since 2016: Lead and Copper Rule Revisions. All are listed as resolved.

What natural hazards affect ZIP 75159?

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

Are there Superfund sites near 75159?

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

Is radon a problem in Dallas County?

Dallas 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.