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

Home hazard report for 99169 — Ritzville, WA

ZIP 99169 is served by Ritzville Water Department: no health-based violations since 2016, latest lead result 0 ppb, PFAS not tested. Adams County is in EPA radon zone 2.

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Where ZIP 99169 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: Ritzville Water Department

EPA IDWA5372700
People served1,725
Sourcegroundwater (wells)
Connections902

Health-based violations

No health-based violations reported since 2016.

Full record for Ritzville Water Department →

Lead

Jan 20230 ppb
Jan 20201.8 ppb
Jan 20163.7 ppb
Jan 20132.5 ppb
Jan 20101 ppb
Jan 20072 ppb
Jan 20042 ppb
Jan 20013 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 Adams 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 Low, with relatively moderate social vulnerability and very low community resilience.

Cold waveRelatively High
HailRelatively High
Heat waveRelatively Moderate
Strong windRelatively Moderate
WildfireRelatively Moderate
Winter weatherRelatively Moderate
DroughtRelatively Low
EarthquakeRelatively Low
Ice stormRelatively Low
LightningRelatively Low
Riverine floodingRelatively Low
LandslideVery Low
TornadoVery Low
Volcanic activityVery 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 Ritzville? See the 2026 conforming, FHA and jumbo loan limits for Adams 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 99169

Who supplies drinking water to ZIP 99169?

Ritzville Water Department (EPA ID WA5372700), a groundwater (wells) system serving about 1,725 people.

Is there lead in Ritzville, WA 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 Ritzville, WA 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 99169 had violations?

No health-based violations reported since 2016.

What natural hazards affect ZIP 99169?

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

Are there Superfund sites near 99169?

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

Is radon a problem in Adams County?

Adams 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.