Home hazard report for 05458 — Grand Isle, VT
ZIP 05458 is served by Grand Isle Consolidated Water District: no health-based violations since 2016, latest lead result 2.8 ppb, PFAS not tested. Grand Isle County is in EPA radon zone 3.
No health-based violations reported since 2016.
90th-percentile lead in the latest round (Jan 2021). Lead comes mostly from household plumbing and service lines, so individual homes can be higher.
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).
Predicted average under 2 pCi/L — but any home can have high radon, so EPA still recommends a test.
FEMA’s overall natural-hazard risk for this census tract, relative to the rest of the U.S.
The nearest active Superfund site is 9.1 miles away.
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Where ZIP 05458 is
Dashed: ZIP area · blue: utility service area · scroll or pinch to zoomDrinking water: Grand Isle Consolidated Water District
Health-based violations
No health-based violations reported since 2016.
Full record for Grand Isle Consolidated Water District →
Other systems overlapping this ZIP: Grand Isle Fire District 4.
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”)
This system was not part of EPA’s 2023–2025 nationwide PFAS testing (UCMR 5).
Radon in Grand Isle 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 Low, with relatively low social vulnerability and very high community resilience.
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
| Site | Status | Distance |
|---|---|---|
| Plattsburgh Air Force Base Plattsburgh, New York · EPA ID NY4571924774 | Active (final NPL) | 9.1 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 05458
Who supplies drinking water to ZIP 05458?
Grand Isle Consolidated Water District (EPA ID VT0020614), a surface water (rivers, lakes) system serving about 1,600 people.
Is there lead in Grand Isle, VT tap water?
The utility’s latest 90th-percentile lead result (Jan 2021) was 2.8 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 Grand Isle, VT 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 05458 had violations?
No health-based violations reported since 2016.
What natural hazards affect ZIP 05458?
FEMA’s National Risk Index rates the overall natural-hazard risk here as Relatively Low; the highest-rated hazards are lightning (relatively high), riverine flooding (relatively high), strong wind (relatively high).
Are there Superfund sites near 05458?
The nearest active Superfund site is 9.1 miles away. Sites within 10 miles: Plattsburgh Air Force Base (9.1 mi, Active (final NPL)).
Is radon a problem in Grand Isle County?
Grand Isle 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.