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

Home hazard report for 72946 — Mountainburg, AR

ZIP 72946 is served by Locke-Fern Dollard Rd Ww PFB: no health-based violations since 2016, latest lead result No data, PFAS not tested. Crawford County is in EPA radon zone 3.

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Where ZIP 72946 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: Locke-Fern Dollard Rd Ww PFB

EPA IDAR0000912
People served1,135
Sourcesurface water (rivers, lakes)
Connections574

Health-based violations

No health-based violations reported since 2016.

Full record for Locke-Fern Dollard Rd Ww PFB →

Other systems overlapping this ZIP: Hwy 71 Water District #1 Pwa, Fort Smith Water Utilities.

Lead

No lead sampling results on file.

PFAS (“forever chemicals”)

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

Radon in Crawford 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 Low, with relatively low social vulnerability and relatively low community resilience.

Heat waveRelatively High
Ice stormRelatively High
Winter weatherRelatively High
Cold waveRelatively Moderate
LandslideRelatively Moderate
LightningRelatively Moderate
Riverine floodingRelatively Moderate
TornadoRelatively Moderate
WildfireRelatively Moderate
HailRelatively Low
Strong windRelatively Low
EarthquakeVery Low
HurricaneVery 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 Mountainburg? See the 2026 conforming, FHA and jumbo loan limits for Crawford 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 72946

Who supplies drinking water to ZIP 72946?

Locke-Fern Dollard Rd Ww PFB (EPA ID AR0000912), a surface water (rivers, lakes) system serving about 1,135 people.

Is there lead in Mountainburg, AR tap water?

No lead sampling results are on file for this system.

Does Mountainburg, AR 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 72946 had violations?

No health-based violations reported since 2016.

What natural hazards affect ZIP 72946?

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

Are there Superfund sites near 72946?

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

Is radon a problem in Crawford County?

Crawford 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.