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

Home hazard report for 71750 — Lawson, AR

ZIP 71750 is served by Lawson-Urbana Water Assoc: 2 violations since 2016, latest lead result 20 ppb, PFAS not tested. Union is in EPA radon zone 3.

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Where ZIP 71750 is

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: Lawson-Urbana Water Assoc

EPA IDAR0000548
People served1,108
Sourcegroundwater (wells)
Connections451

Health-based violations

Contaminant or ruleHealth-based violations since 2016
Tthm2

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 2016.

Full record for Lawson-Urbana Water Assoc →

Lead

Jan 200720 ppb
Jan 20011 ppb
Jan 19984 ppb
Jan 19973 ppb
Jan 19964 ppb
Jan 19958 ppb
Jul 19949 ppb
Jan 19943 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 Union

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 →

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 Lawson? See the 2026 conforming, FHA and jumbo loan limits for Union →

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 71750

Who supplies drinking water to ZIP 71750?

Lawson-Urbana Water Assoc (EPA ID AR0000548), a groundwater (wells) system serving about 1,108 people.

Is there lead in Lawson, AR tap water?

The utility’s latest 90th-percentile lead result (Jan 2007) was 20 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 Lawson, 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 71750 had violations?

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

Are there Superfund sites near 71750?

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

Is radon a problem in Union?

Union 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.