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

Home hazard report for 26059 — Triadelphia, WV

ZIP 26059 is served by Triadelphia Water Dept: 3 violations since 2016, latest lead result 0 ppb, PFAS not tested. Ohio County is in EPA radon zone 1.

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Where ZIP 26059 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: Triadelphia Water Dept

EPA IDWV3303512
People served979
Sourcesurface water (rivers, lakes)
Connections438

Health-based violations

Contaminant or ruleHealth-based violations since 2016
Revised Total Coliform Rule2
Long Term 2 Enhanced Surface Water Treatment 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 Jun 2020.

Full record for Triadelphia Water Dept →

Other systems overlapping this ZIP: Ohio County PSD.

Lead

Jan 20230 ppb
Jan 20220 ppb
Jul 20210 ppb
Jan 20210.9 ppb
Jan 20170.8 ppb
Jan 20141.3 ppb
Jan 20111.2 ppb
Jan 20085 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 Ohio County

EPA radon zone 1 — highest potential. Predicted average indoor radon above 4 pCi/L — EPA’s action level. Test your home.

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 Moderate, with relatively moderate social vulnerability and very high community resilience.

Riverine floodingRelatively High
HailRelatively Moderate
LightningRelatively Moderate
Strong windRelatively Moderate
Cold waveRelatively Low
DroughtRelatively Low
HurricaneRelatively Low
Ice stormRelatively Low
LandslideRelatively Low
TornadoRelatively Low
WildfireRelatively Low
Winter weatherRelatively Low
EarthquakeVery Low
Heat waveVery 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 Triadelphia? See the 2026 conforming, FHA and jumbo loan limits for Ohio 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 26059

Who supplies drinking water to ZIP 26059?

Triadelphia Water Dept (EPA ID WV3303512), a surface water (rivers, lakes) system serving about 979 people.

Is there lead in Triadelphia, WV tap water?

The utility’s latest 90th-percentile lead result (Jan 2023) 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 Triadelphia, WV 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 26059 had violations?

Health-based violations since 2016: Revised Total Coliform Rule, Long Term 2 Enhanced Surface Water Treatment Rule. All are listed as resolved.

What natural hazards affect ZIP 26059?

FEMA’s National Risk Index rates the overall natural-hazard risk here as Relatively Moderate; the highest-rated hazards are riverine flooding (relatively high), hail (relatively moderate), lightning (relatively moderate).

Are there Superfund sites near 26059?

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

Is radon a problem in Ohio County?

Ohio County is in EPA radon zone 1 (highest potential). Predicted average indoor radon above 4 pCi/L — EPA’s action level. Test your home.