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

Home hazard report for 74522 — Alderson, OK

ZIP 74522 is served by Adamson RWD #8: 39 violations since 2016, latest lead result 6.4 ppb, PFAS 1 detected. Pittsburg County is in EPA radon zone 3.

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Where ZIP 74522 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: Adamson RWD #8

EPA IDOK3006112
People served4,221
Sourcesurface water (rivers, lakes)
Connections1,731

Health-based violations

Contaminant or ruleHealth-based violations since 2016
TTHM38
Total Haloacetic Acids (Haa5)1

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 Oct 2024.

Full record for Adamson RWD #8 →

Other systems overlapping this ZIP: Pittsburg Co. RWD #6 (Alderson).

Lead

Jan 20216.4 ppb
Jan 20200 ppb
Jan 20190 ppb
Jan 20180 ppb
Jan 20170 ppb
Jan 20160 ppb
Jan 20157.3 ppb
Jan 201410.1 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”)

CompoundHighest resultSamples with detectionEPA limit
PFBA5 ppt1 of 4—
PFPeAnot detected0 of 4—
PFOAnot detected0 of 44 ppt MCL
HFPO-DA (GenX)not detected0 of 4—
PFHxAnot detected0 of 4—
PFDAnot detected0 of 4—
PFOSnot detected0 of 44 ppt MCL
PFNAnot detected0 of 4—
PFHxSnot detected0 of 4—
PFHpAnot detected0 of 4—
PFBSnot detected0 of 4—

EPA Fifth Unregulated Contaminant Monitoring Rule (UCMR 5), samples 2023–2025; ppt = parts per trillion (ng/L). The 4.0 ppt maximum contaminant levels for PFOA and PFOS were set by EPA in 2024; water systems have until the end of the decade to comply.

Radon in Pittsburg 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 relatively high social vulnerability and relatively low community resilience.

Ice stormVery High
HailRelatively High
Heat waveRelatively High
LightningRelatively High
Riverine floodingRelatively High
Strong windRelatively High
TornadoRelatively High
WildfireRelatively High
Winter weatherRelatively High
Cold waveRelatively Moderate
EarthquakeRelatively Low
LandslideRelatively 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 Alderson? See the 2026 conforming, FHA and jumbo loan limits for Pittsburg 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 74522

Who supplies drinking water to ZIP 74522?

Adamson RWD #8 (EPA ID OK3006112), a surface water (rivers, lakes) system serving about 4,221 people.

Is there lead in Alderson, OK tap water?

The utility’s latest 90th-percentile lead result (Jan 2021) was 6.4 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 Alderson, OK water have PFAS?

PFAS were detected, with PFOA and PFOS below 4.0 ppt (highest not detected).

Has the water system in 74522 had violations?

Health-based violations since 2016: TTHM, Total Haloacetic Acids (Haa5). All are listed as resolved.

What natural hazards affect ZIP 74522?

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

Are there Superfund sites near 74522?

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

Is radon a problem in Pittsburg County?

Pittsburg 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.