Home hazard report for 03873 — Sandown, NH
ZIP 03873 is served by Little Mill Woods: no health-based violations since 2016, latest lead result No data, PFAS not tested. Rockingham County is in EPA radon zone 2.
No health-based violations reported since 2016.
No lead sampling results on file for this system.
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.
FEMA’s overall natural-hazard risk for this census tract, relative to the rest of the U.S.
The nearest active Superfund site is 3.9 miles away.
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Where ZIP 03873 is
Dashed: ZIP area · blue: utility service area · scroll or pinch to zoomDrinking water: Little Mill Woods
Health-based violations
No health-based violations reported since 2016.
Lead
No lead sampling results on file.
PFAS (“forever chemicals”)
This system was not part of EPA’s 2023–2025 nationwide PFAS testing (UCMR 5).
Radon in Rockingham 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 Low, with very low social vulnerability and relatively 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 |
|---|---|---|
| Mottolo Pig Farm Raymond, New Hampshire · EPA ID NHD980503361 | Active (final NPL) | 3.9 mi |
| Ottati & Goss/Kingston Steel Drum Kingston, New Hampshire · EPA ID NHD990717647 | Active (final NPL) | 5.8 mi |
| Beede Waste Oil Plaistow, New Hampshire · EPA ID NHD018958140 | Active (final NPL) | 6.7 mi |
| Auburn Road Landfill Londonderry, New Hampshire · EPA ID NHD980524086 | Active (final NPL) | 8.6 mi |
| Keefe Environmental Services Epping, New Hampshire · EPA ID NHD092059112 | Active (final NPL) | 9.8 mi |
| Tinkham Garage Londonderry, New Hampshire · EPA ID NHD062004569 | Active (final NPL) | 9.9 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 03873
Who supplies drinking water to ZIP 03873?
Little Mill Woods (EPA ID NH2082080), a groundwater (wells) system serving about 98 people.
Is there lead in Sandown, NH tap water?
No lead sampling results are on file for this system.
Does Sandown, 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 03873 had violations?
No health-based violations reported since 2016.
What natural hazards affect ZIP 03873?
FEMA’s National Risk Index rates the overall natural-hazard risk here as Relatively Low; the highest-rated hazards are ice storm (relatively moderate), lightning (relatively moderate), strong wind (relatively moderate).
Are there Superfund sites near 03873?
The nearest active Superfund site is 3.9 miles away. Sites within 10 miles: Mottolo Pig Farm (3.9 mi, Active (final NPL)); Ottati & Goss/Kingston Steel Drum (5.8 mi, Active (final NPL)); Beede Waste Oil (6.7 mi, Active (final NPL)).
Is radon a problem in Rockingham County?
Rockingham 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.