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

Home hazard report for 03276 — Tilton, NH

ZIP 03276 is served by Tilton Northfield Water Dist: no health-based violations since 2016, latest lead result 36 ppb, PFAS not tested. Merrimack County is in EPA radon zone 2.

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Where ZIP 03276 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: Tilton Northfield Water Dist

EPA IDNH2351010
People served2,500
Sourcegroundwater (wells)
Connections975

Health-based violations

No health-based violations reported since 2016.

Full record for Tilton Northfield Water Dist →

Lead

Jan 201236 ppb
Jan 200438 ppb
Jan 200246 ppb
Jan 200022 ppb
Jul 199918 ppb
Jul 199378 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 Merrimack 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 High, with very high social vulnerability and relatively high community resilience.

LightningVery High
Ice stormRelatively High
Riverine floodingRelatively High
Winter weatherRelatively High
Cold waveRelatively Moderate
HurricaneRelatively Moderate
Strong windRelatively Moderate
EarthquakeRelatively Low
HailRelatively Low
Heat waveRelatively Low
TornadoRelatively Low
WildfireRelatively Low
LandslideVery 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 Tilton? See the 2026 conforming, FHA and jumbo loan limits for Merrimack 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 03276

Who supplies drinking water to ZIP 03276?

Tilton Northfield Water Dist (EPA ID NH2351010), a groundwater (wells) system serving about 2,500 people.

Is there lead in Tilton, NH tap water?

The utility’s latest 90th-percentile lead result (Jan 2012) was 36 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 Tilton, NH 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 03276 had violations?

No health-based violations reported since 2016.

What natural hazards affect ZIP 03276?

FEMA’s National Risk Index rates the overall natural-hazard risk here as Relatively High; the highest-rated hazards are lightning (very high), ice storm (relatively high), riverine flooding (relatively high).

Are there Superfund sites near 03276?

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

Is radon a problem in Merrimack County?

Merrimack 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.