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

Home hazard report for 82002 — Cheyenne, WY

ZIP 82002 is served by Winchester Hills: no health-based violations since 2016, latest lead result 3 ppb, PFAS not tested. Laramie is in EPA radon zone 1.

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Where ZIP 82002 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: Winchester Hills

EPA IDWY5600779
People served1,078
Sourcegroundwater (wells)
Connections423

Health-based violations

No health-based violations reported since 2016.

Full record for Winchester Hills →

Other systems overlapping this ZIP: Cheyenne Board of Public Utilities.

Lead

Jan 20263 ppb
Jan 20252 ppb
Jan 20243 ppb
Jan 20232 ppb
Jul 20222 ppb
Jan 20171 ppb
Jan 20140 ppb
Jan 20112 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 Laramie

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 →

Superfund sites nearby

SiteStatusDistance
F.E. Warren Air Force Base
Cheyenne, Wyoming · EPA ID WY5571924179
Active (final NPL)2.5 mi

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.

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 82002

Who supplies drinking water to ZIP 82002?

Winchester Hills (EPA ID WY5600779), a groundwater (wells) system serving about 1,078 people.

Is there lead in Cheyenne, WY tap water?

The utility’s latest 90th-percentile lead result (Jan 2026) was 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 Cheyenne, WY 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 82002 had violations?

No health-based violations reported since 2016.

Are there Superfund sites near 82002?

Active or proposed Superfund (National Priorities List) sites near the center of this ZIP code. Sites within 10 miles: F.E. Warren Air Force Base (2.5 mi, Active (final NPL)).

Is radon a problem in Laramie?

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