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

Home hazard report for 71670 — Tillar, AR

ZIP 71670 is served by Kelso-Rohwer Water Association: no health-based violations since 2016, latest lead result 7 ppb, PFAS not tested. Desha County is in EPA radon zone 3.

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Where ZIP 71670 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: Kelso-Rohwer Water Association

EPA IDAR0000168
People served563
Sourcegroundwater (wells)
Connections232

Health-based violations

No health-based violations reported since 2016.

Full record for Kelso-Rohwer Water Association →

Other systems overlapping this ZIP: Winchester Waterworks.

Lead

Jan 20007 ppb
Jan 19972 ppb
Jan 19961 ppb
Jan 19951 ppb
Jan 19941 ppb
Jul 19932 ppb
Jan 19931 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 Desha 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 moderate community resilience.

TornadoVery High
EarthquakeRelatively High
Heat waveRelatively High
Riverine floodingRelatively High
Strong windRelatively High
Cold waveRelatively Moderate
DroughtRelatively Moderate
HailRelatively Moderate
Ice stormRelatively Moderate
LightningRelatively Moderate
Winter weatherRelatively Moderate
HurricaneRelatively Low
LandslideVery Low
WildfireVery 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 Tillar? See the 2026 conforming, FHA and jumbo loan limits for Desha 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 71670

Who supplies drinking water to ZIP 71670?

Kelso-Rohwer Water Association (EPA ID AR0000168), a groundwater (wells) system serving about 563 people.

Is there lead in Tillar, AR tap water?

The utility’s latest 90th-percentile lead result (Jan 2000) was 7 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 Tillar, 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 71670 had violations?

No health-based violations reported since 2016.

What natural hazards affect ZIP 71670?

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

Are there Superfund sites near 71670?

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

Is radon a problem in Desha County?

Desha 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.