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

Home hazard report for 71043 — Hosston, LA

ZIP 71043 is served by Village of Hosston Water System: 5 violations since 2016, latest lead result 2.2 ppb, PFAS not tested. Caddo Parish is in EPA radon zone 3.

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Where ZIP 71043 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: Village of Hosston Water System

EPA IDLA1017016
People served729
Sourcegroundwater (wells)
Connections243

Health-based violations

Contaminant or ruleHealth-based violations since 2016
Tthm4
Groundwater Rule1

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 Jul 2018.

Full record for Village of Hosston Water System →

Lead

Jan 20232.2 ppb
Jan 20202 ppb
Jan 20173 ppb
Jan 20144 ppb
Jan 20113 ppb
Jan 20087 ppb
Jan 20054 ppb
Jan 20046 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”)

This system was not part of EPA’s 2023–2025 nationwide PFAS testing (UCMR 5).

Radon in Caddo Parish

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 moderate community resilience.

DroughtRelatively High
Heat waveRelatively High
Ice stormRelatively High
Strong windRelatively High
Cold waveRelatively Moderate
HailRelatively Moderate
LightningRelatively Moderate
Riverine floodingRelatively Moderate
Winter weatherRelatively Moderate
EarthquakeRelatively Low
HurricaneRelatively Low
LandslideRelatively Low
TornadoRelatively Low
WildfireRelatively 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 71043

Who supplies drinking water to ZIP 71043?

Village of Hosston Water System (EPA ID LA1017016), a groundwater (wells) system serving about 729 people.

Is there lead in Hosston, LA tap water?

The utility’s latest 90th-percentile lead result (Jan 2023) was 2.2 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 Hosston, LA 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 71043 had violations?

Health-based violations since 2016: Tthm, Groundwater Rule. All are listed as resolved.

What natural hazards affect ZIP 71043?

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

Are there Superfund sites near 71043?

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

Is radon a problem in Caddo Parish?

Caddo Parish 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.