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

Home hazard report for 75486 — Sumner, TX

ZIP 75486 is served by Lamar County Water Supply District: 4 violations since 2016, latest lead result 0 ppb, PFAS not detected. Lamar County is in EPA radon zone 3.

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Where ZIP 75486 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: Lamar County Water Supply District

EPA IDTX1390015
People served25,569
Sourcesurface water (rivers, lakes)
Connections10,812

Health-based violations

Contaminant or ruleHealth-based violations since 2016
Total Haloacetic Acids (Haa5)4

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 2016.

Full record for Lamar County Water Supply District →

Lead

Jan 20210 ppb
Jan 20180 ppb
Jan 20151.3 ppb
Jan 20143.6 ppb
Jan 20081.2 ppb
Jan 20050 ppb
Jan 19991.1 ppb
Jan 19961.6 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
PFBAnot detected0 of 4—
PFPeAnot detected0 of 4—
PFBSnot detected0 of 4—
HFPO-DA (GenX)not 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
PFHxAnot detected0 of 4—
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 Lamar 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 very high social vulnerability and relatively low community resilience.

Cold waveVery High
HailVery High
Ice stormVery High
TornadoVery High
DroughtRelatively High
Heat waveRelatively High
LightningRelatively High
Riverine floodingRelatively High
Strong windRelatively High
WildfireRelatively High
Winter weatherRelatively High
EarthquakeRelatively Low
HurricaneRelatively Low
LandslideRelatively 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 75486

Who supplies drinking water to ZIP 75486?

Lamar County Water Supply District (EPA ID TX1390015), a surface water (rivers, lakes) system serving about 25,569 people.

Is there lead in Sumner, TX tap water?

The utility’s latest 90th-percentile lead result (Jan 2021) was 0 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 Sumner, TX water have PFAS?

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

Has the water system in 75486 had violations?

Health-based violations since 2016: Total Haloacetic Acids (Haa5). All are listed as resolved.

What natural hazards affect ZIP 75486?

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

Are there Superfund sites near 75486?

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

Is radon a problem in Lamar County?

Lamar 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.