Home hazard report for 22604 — Winchester, VA
ZIP 22604 is served by Frederick Water: no health-based violations since 2016, latest lead result 1 ppb, PFAS 1 detected. Winchester (city) is in EPA radon no zone.
No health-based violations reported since 2016.
90th-percentile lead in the latest round (Jan 2026). Lead comes mostly from household plumbing and service lines, so individual homes can be higher.
PFAS were detected, with PFOA and PFOS below 4.0 ppt (highest not detected).
EPA has not assigned this area a radon zone. Testing is the only way to know.
No active Superfund site within 10 miles of the ZIP center.
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Where ZIP 22604 is
blue: utility service area · scroll or pinch to zoomDrinking water: Frederick Water
Health-based violations
No health-based violations reported since 2016.
Lead
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”)
| Compound | Highest result | Samples with detection | EPA limit |
|---|---|---|---|
| PFBS | 6.9 ppt | 5 of 8 | — |
| PFHxA | not detected | 0 of 8 | — |
| PFOA | not detected | 0 of 8 | 4 ppt MCL |
| PFNA | not detected | 0 of 8 | — |
| PFHxS | not detected | 0 of 8 | — |
| PFDA | not detected | 0 of 8 | — |
| PFBA | not detected | 0 of 8 | — |
| PFHpA | not detected | 0 of 8 | — |
| PFOS | not detected | 0 of 8 | 4 ppt MCL |
| PFPeA | not detected | 0 of 8 | — |
| HFPO-DA (GenX) | not detected | 0 of 8 | — |
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 Winchester (city)
EPA radon no zone — not mapped. EPA has not assigned this area a radon zone. Testing is the only way to know.
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
| Site | Status | Distance |
|---|---|---|
| Rhinehart Tire Fire Dump Frederick County, Virginia · EPA ID VAD980831796 | Cleaned up & deleted | 7.7 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 22604
Who supplies drinking water to ZIP 22604?
Frederick Water (EPA ID VA2069250), a surface water (rivers, lakes) system serving about 46,206 people.
Is there lead in Winchester, VA tap water?
The utility’s latest 90th-percentile lead result (Jan 2026) was 1 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 Winchester, VA water have PFAS?
PFAS were detected, with PFOA and PFOS below 4.0 ppt (highest not detected).
Has the water system in 22604 had violations?
No health-based violations reported since 2016.
Are there Superfund sites near 22604?
No active Superfund site within 10 miles of the ZIP center. Sites within 10 miles: Rhinehart Tire Fire Dump (7.7 mi, Cleaned up & deleted).
Is radon a problem in Winchester (city)?
Winchester (city) is in EPA radon no zone (not mapped). EPA has not assigned this area a radon zone. Testing is the only way to know.