Home hazard report for 06277 — Thompson, CT
ZIP 06277 is served by Thompson Hill Water Co - Paula Lane Div: 2 violations since 2016, latest lead result 3.9 ppb, PFAS not tested. Windham County is in EPA radon zone 2.
Health-based violations since 2016: Revised Total Coliform Rule, Lead and Copper Rule Revisions. 1 is still listed as unresolved in EPA records.
90th-percentile lead in the latest round (Jan 2026). 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 indoor radon between 2 and 4 pCi/L. Test your home; many homes here exceed 4 pCi/L.
The nearest active Superfund site is 6.4 miles away.
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Where ZIP 06277 is
Dashed: ZIP area · blue: utility service area · scroll or pinch to zoomDrinking water: Thompson Hill Water Co - Paula Lane Div
Health-based violations
| Contaminant or rule | Health-based violations since 2016 |
|---|---|
| Revised Total Coliform Rule | 1 |
| Lead and Copper Rule Revisions | 1 |
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. 1 still listed as unresolved (“unaddressed” or “addressed” but not yet returned to compliance); the latest began Oct 2024.
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 Windham 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 →
Superfund sites nearby
| Site | Status | Distance |
|---|---|---|
| Linemaster Switch Corp. Woodstock, Connecticut · EPA ID CTD001153923 | Active (final NPL) | 6.4 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 06277
Who supplies drinking water to ZIP 06277?
Thompson Hill Water Co - Paula Lane Div (EPA ID CT1410661), a groundwater (wells) system serving about 85 people.
Is there lead in Thompson, CT tap water?
The utility’s latest 90th-percentile lead result (Jan 2026) was 3.9 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 Thompson, CT 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 06277 had violations?
Health-based violations since 2016: Revised Total Coliform Rule, Lead and Copper Rule Revisions. 1 is still listed as unresolved in EPA records.
Are there Superfund sites near 06277?
The nearest active Superfund site is 6.4 miles away. Sites within 10 miles: Linemaster Switch Corp. (6.4 mi, Active (final NPL)).
Is radon a problem in Windham County?
Windham 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.