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

Home hazard report for 66064 — Osawatomie, KS

ZIP 66064 is served by Miami Co RWD 3: 13 violations since 2016, latest lead result 1.3 ppb, PFAS not tested. Miami County is in EPA radon zone 2.

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Where ZIP 66064 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: Miami Co RWD 3

EPA IDKS2012104
People served2,435
Sourcesurface water (rivers, lakes)
Connections1,005

Health-based violations

Contaminant or ruleHealth-based violations since 2016
TTHM10
Total Haloacetic Acids (Haa5)3

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 Apr 2019.

Full record for Miami Co RWD 3 →

Other systems overlapping this ZIP: Miami Co RWD 2, City of Osawatomie, Franklin Co RWD 6.

Lead

Jan 20241.3 ppb
Jan 20214.2 ppb
Jan 20181.6 ppb
Jan 20151.6 ppb
Jan 20123.3 ppb
Jan 20090 ppb
Jan 20081.4 ppb
Jan 20050 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 Miami County

EPA radon zone 2 — moderate potential. Predicted average indoor radon between 2 and 4 pCi/L. Test your home; many homes here exceed 4 pCi/L.

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 moderate social vulnerability and relatively high community resilience.

Strong windVery High
TornadoVery High
Winter weatherVery High
Cold waveRelatively High
HailRelatively High
Heat waveRelatively High
Ice stormRelatively High
LightningRelatively High
Riverine floodingRelatively High
DroughtRelatively Low
EarthquakeRelatively Low
LandslideRelatively Low
WildfireRelatively 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 Osawatomie? See the 2026 conforming, FHA and jumbo loan limits for Miami 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 66064

Who supplies drinking water to ZIP 66064?

Miami Co RWD 3 (EPA ID KS2012104), a surface water (rivers, lakes) system serving about 2,435 people.

Is there lead in Osawatomie, KS tap water?

The utility’s latest 90th-percentile lead result (Jan 2024) was 1.3 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 Osawatomie, KS 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 66064 had violations?

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

What natural hazards affect ZIP 66064?

FEMA’s National Risk Index rates the overall natural-hazard risk here as Relatively High; the highest-rated hazards are strong wind (very high), tornado (very high), winter weather (very high).

Are there Superfund sites near 66064?

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

Is radon a problem in Miami County?

Miami County is in EPA radon zone 2 (moderate potential). Predicted average indoor radon between 2 and 4 pCi/L. Test your home; many homes here exceed 4 pCi/L.